X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/490019cf9519204c5fb36b2fba54ceb983bb6b72..c3c9b80d004dbbfdf763edeb97968c6997e3b45b:/bsd/net/if.c diff --git a/bsd/net/if.c b/bsd/net/if.c index a58ce458c..6cc232bc6 100644 --- a/bsd/net/if.c +++ b/bsd/net/if.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2015 Apple Inc. All rights reserved. + * Copyright (c) 2000-2020 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -85,6 +85,7 @@ #include #include #include +#include #include @@ -95,42 +96,39 @@ #include #include #include +#include #include #include #include - +#include #include #include #include +#include + #include #include -#if INET || INET6 -/*XXX*/ +#if INET #include #include +#include #include +#include #include #include #include #include #include #include -#if INET6 #include #include #include #include -#endif /* INET6 */ -#endif /* INET || INET6 */ +#endif /* INET */ -#if CONFIG_MACF_NET -#include -#endif -#if PF_ALTQ -#include -#endif /* !PF_ALTQ */ +#include /* * System initialization @@ -139,14 +137,15 @@ extern char *proc_name_address(void *); /* Lock group and attribute for ifaddr lock */ -lck_attr_t *ifa_mtx_attr; -lck_grp_t *ifa_mtx_grp; -static lck_grp_attr_t *ifa_mtx_grp_attr; +lck_attr_t *ifa_mtx_attr; +lck_grp_t *ifa_mtx_grp; +static lck_grp_attr_t *ifa_mtx_grp_attr; static int ifioctl_ifreq(struct socket *, u_long, struct ifreq *, struct proc *); static int ifioctl_ifconf(u_long, caddr_t); static int ifioctl_ifclone(u_long, caddr_t); +static int ifioctl_iforder(u_long, caddr_t); static int ifioctl_ifdesc(struct ifnet *, u_long, caddr_t, struct proc *); static int ifioctl_linkparams(struct ifnet *, u_long, caddr_t, struct proc *); static int ifioctl_qstats(struct ifnet *, u_long, caddr_t); @@ -160,6 +159,7 @@ static int if_addmulti_common(struct ifnet *, const struct sockaddr *, struct ifmultiaddr **, int); static int if_delmulti_common(struct ifmultiaddr *, struct ifnet *, const struct sockaddr *, int); +static struct ifnet *ifunit_common(const char *, boolean_t); static int if_rtmtu(struct radix_node *, void *); static void if_rtmtu_update(struct ifnet *); @@ -168,9 +168,13 @@ static int if_clone_list(int, int *, user_addr_t); MALLOC_DEFINE(M_IFADDR, "ifaddr", "interface address"); -struct ifnethead ifnet_head = TAILQ_HEAD_INITIALIZER(ifnet_head); +struct ifnethead ifnet_head = TAILQ_HEAD_INITIALIZER(ifnet_head); + +/* ifnet_ordered_head and if_ordered_count are protected by the ifnet_head lock */ +struct ifnethead ifnet_ordered_head = TAILQ_HEAD_INITIALIZER(ifnet_ordered_head); +static u_int32_t if_ordered_count = 0; -static int if_cloners_count; +static int if_cloners_count; LIST_HEAD(, if_clone) if_cloners = LIST_HEAD_INITIALIZER(if_cloners); static struct ifaddr *ifa_ifwithnet_common(const struct sockaddr *, @@ -186,27 +190,27 @@ static void ifma_free(struct ifmultiaddr *); static void ifma_trace(struct ifmultiaddr *, int); #if DEBUG -static unsigned int ifma_debug = 1; /* debugging (enabled) */ +static unsigned int ifma_debug = 1; /* debugging (enabled) */ #else -static unsigned int ifma_debug; /* debugging (disabled) */ +static unsigned int ifma_debug; /* debugging (disabled) */ #endif /* !DEBUG */ -static unsigned int ifma_size; /* size of zone element */ -static struct zone *ifma_zone; /* zone for ifmultiaddr */ +static unsigned int ifma_size; /* size of zone element */ +static struct zone *ifma_zone; /* zone for ifmultiaddr */ -#define IFMA_TRACE_HIST_SIZE 32 /* size of trace history */ +#define IFMA_TRACE_HIST_SIZE 32 /* size of trace history */ /* For gdb */ __private_extern__ unsigned int ifma_trace_hist_size = IFMA_TRACE_HIST_SIZE; struct ifmultiaddr_dbg { - struct ifmultiaddr ifma; /* ifmultiaddr */ - u_int16_t ifma_refhold_cnt; /* # of ref */ - u_int16_t ifma_refrele_cnt; /* # of rele */ + struct ifmultiaddr ifma; /* ifmultiaddr */ + u_int16_t ifma_refhold_cnt; /* # of ref */ + u_int16_t ifma_refrele_cnt; /* # of rele */ /* * Circular lists of IFA_ADDREF and IFA_REMREF callers. */ - ctrace_t ifma_refhold[IFMA_TRACE_HIST_SIZE]; - ctrace_t ifma_refrele[IFMA_TRACE_HIST_SIZE]; + ctrace_t ifma_refhold[IFMA_TRACE_HIST_SIZE]; + ctrace_t ifma_refrele[IFMA_TRACE_HIST_SIZE]; /* * Trash list linkage */ @@ -217,21 +221,19 @@ struct ifmultiaddr_dbg { static TAILQ_HEAD(, ifmultiaddr_dbg) ifma_trash_head; static decl_lck_mtx_data(, ifma_trash_lock); -#define IFMA_ZONE_MAX 64 /* maximum elements in zone */ -#define IFMA_ZONE_NAME "ifmultiaddr" /* zone name */ +#define IFMA_ZONE_MAX 64 /* maximum elements in zone */ +#define IFMA_ZONE_NAME "ifmultiaddr" /* zone name */ -#if INET6 /* * XXX: declare here to avoid to include many inet6 related files.. * should be more generalized? */ -extern void nd6_setmtu(struct ifnet *); +extern void nd6_setmtu(struct ifnet *); extern lck_mtx_t *nd6_mutex; -#endif -SYSCTL_NODE(_net, PF_LINK, link, CTLFLAG_RW|CTLFLAG_LOCKED, 0, "Link layers"); -SYSCTL_NODE(_net_link, 0, generic, CTLFLAG_RW|CTLFLAG_LOCKED, 0, - "Generic link-management"); +SYSCTL_NODE(_net, PF_LINK, link, CTLFLAG_RW | CTLFLAG_LOCKED, 0, "Link layers"); +SYSCTL_NODE(_net_link, 0, generic, CTLFLAG_RW | CTLFLAG_LOCKED, 0, + "Generic link-management"); SYSCTL_DECL(_net_link_generic_system); @@ -239,6 +241,57 @@ static uint32_t if_verbose = 0; SYSCTL_INT(_net_link_generic_system, OID_AUTO, if_verbose, CTLFLAG_RW | CTLFLAG_LOCKED, &if_verbose, 0, ""); +#if (DEBUG || DEVELOPMENT) +static uint32_t default_tcp_kao_max = 0; +SYSCTL_INT(_net_link_generic_system, OID_AUTO, default_tcp_kao_max, + CTLFLAG_RW | CTLFLAG_LOCKED, &default_tcp_kao_max, 0, ""); +#else +static const uint32_t default_tcp_kao_max = 0; +#endif /* (DEBUG || DEVELOPMENT) */ + +u_int32_t companion_link_sock_buffer_limit = 0; + +static int +sysctl_set_companion_link_sock_buf_limit SYSCTL_HANDLER_ARGS +{ +#pragma unused(arg1, arg2) + int error, tmp = companion_link_sock_buffer_limit; + error = sysctl_handle_int(oidp, &tmp, 0, req); + if (tmp < 0) { + return EINVAL; + } + if ((error = priv_check_cred(kauth_cred_get(), + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + + u_int32_t new_limit = tmp; + if (new_limit == companion_link_sock_buffer_limit) { + return 0; + } + + bool recover = new_limit == 0 ? true : false; + if (recover) { + error = inp_recover_companion_link(&tcbinfo); + } else { + error = inp_limit_companion_link(&tcbinfo, new_limit); + } + if (!error) { + companion_link_sock_buffer_limit = new_limit; + } + return error; +} + +SYSCTL_PROC(_net_link_generic_system, OID_AUTO, companion_sndbuf_limit, + CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED | CTLFLAG_ANYBODY, + &companion_link_sock_buffer_limit, 0, sysctl_set_companion_link_sock_buf_limit, + "I", "set sock send buffer limit of connections using companion links"); + +boolean_t intcoproc_unrestricted; + +/* Eventhandler context for interface events */ +struct eventhandler_lists_ctxt ifnet_evhdlr_ctxt; + void ifa_init(void) { @@ -247,22 +300,17 @@ ifa_init(void) ifa_mtx_grp = lck_grp_alloc_init("ifaddr", ifa_mtx_grp_attr); ifa_mtx_attr = lck_attr_alloc_init(); - PE_parse_boot_argn("ifa_debug", &ifma_debug, sizeof (ifma_debug)); + PE_parse_boot_argn("ifa_debug", &ifma_debug, sizeof(ifma_debug)); - ifma_size = (ifma_debug == 0) ? sizeof (struct ifmultiaddr) : - sizeof (struct ifmultiaddr_dbg); - - ifma_zone = zinit(ifma_size, IFMA_ZONE_MAX * ifma_size, 0, - IFMA_ZONE_NAME); - if (ifma_zone == NULL) { - panic("%s: failed allocating %s", __func__, IFMA_ZONE_NAME); - /* NOTREACHED */ - } - zone_change(ifma_zone, Z_EXPAND, TRUE); - zone_change(ifma_zone, Z_CALLERACCT, FALSE); + ifma_size = (ifma_debug == 0) ? sizeof(struct ifmultiaddr) : + sizeof(struct ifmultiaddr_dbg); + ifma_zone = zone_create(IFMA_ZONE_NAME, ifma_size, ZC_NONE); lck_mtx_init(&ifma_trash_lock, ifa_mtx_grp, ifa_mtx_attr); TAILQ_INIT(&ifma_trash_head); + + PE_parse_boot_argn("intcoproc_unrestricted", &intcoproc_unrestricted, + sizeof(intcoproc_unrestricted)); } /* @@ -311,13 +359,16 @@ if_attach_ifa_common(struct ifnet *ifp, struct ifaddr *ifa, int link) } IFA_ADDREF_LOCKED(ifa); ifa->ifa_debug |= IFD_ATTACHED; - if (link) + if (link) { TAILQ_INSERT_HEAD(&ifp->if_addrhead, ifa, ifa_link); - else + } else { TAILQ_INSERT_TAIL(&ifp->if_addrhead, ifa, ifa_link); + } - if (ifa->ifa_attached != NULL) + if (ifa->ifa_attached != NULL) { (*ifa->ifa_attached)(ifa); + } + } __private_extern__ void @@ -358,8 +409,9 @@ if_detach_ifa_common(struct ifnet *ifp, struct ifaddr *ifa, int link) } else if (ifa->ifa_debug & IFD_DEBUG) { struct ifaddr *ifa2; TAILQ_FOREACH(ifa2, &ifp->if_addrhead, ifa_link) { - if (ifa2 == ifa) + if (ifa2 == ifa) { break; + } } if (ifa2 != ifa) { panic("%s: Attempt to detach a stray address ifa=%p", @@ -375,17 +427,19 @@ if_detach_ifa_common(struct ifnet *ifp, struct ifaddr *ifa, int link) } ifa->ifa_debug &= ~IFD_ATTACHED; - if (ifa->ifa_detached != NULL) + if (ifa->ifa_detached != NULL) { (*ifa->ifa_detached)(ifa); + } + } -#define INITIAL_IF_INDEXLIM 8 +#define INITIAL_IF_INDEXLIM 8 /* * Function: if_next_index * Purpose: - * Return the next available interface index. - * Grow the ifnet_addrs[] and ifindex2ifnet[] arrays to accomodate the + * Return the next available interface index. + * Grow the ifnet_addrs[] and ifindex2ifnet[] arrays to accomodate the * added entry when necessary. * * Note: @@ -399,16 +453,16 @@ int if_next_index(void); __private_extern__ int if_next_index(void) { - static int if_indexlim = 0; - int new_index; + static int if_indexlim = 0; + int new_index; new_index = ++if_index; if (if_index > if_indexlim) { - unsigned n; - int new_if_indexlim; - caddr_t new_ifnet_addrs; - caddr_t new_ifindex2ifnet; - caddr_t old_ifnet_addrs; + unsigned n; + int new_if_indexlim; + caddr_t new_ifnet_addrs; + caddr_t new_ifindex2ifnet; + caddr_t old_ifnet_addrs; old_ifnet_addrs = (caddr_t)ifnet_addrs; if (ifnet_addrs == NULL) { @@ -425,15 +479,15 @@ if_next_index(void) return -1; } - new_ifindex2ifnet = new_ifnet_addrs - + new_if_indexlim * sizeof(caddr_t); + new_ifindex2ifnet = new_ifnet_addrs + + new_if_indexlim * sizeof(caddr_t); if (ifnet_addrs != NULL) { /* copy the existing data */ bcopy((caddr_t)ifnet_addrs, new_ifnet_addrs, - if_indexlim * sizeof(caddr_t)); + if_indexlim * sizeof(caddr_t)); bcopy((caddr_t)ifindex2ifnet, - new_ifindex2ifnet, - (if_indexlim + 1) * sizeof(caddr_t)); + new_ifindex2ifnet, + (if_indexlim + 1) * sizeof(caddr_t)); } /* switch to the new tables and size */ @@ -446,7 +500,7 @@ if_next_index(void) _FREE((caddr_t)old_ifnet_addrs, M_IFADDR); } } - return (new_index); + return new_index; } /* @@ -463,11 +517,13 @@ if_clone_create(char *name, int len, void *params) int err; ifc = if_clone_lookup(name, &unit); - if (ifc == NULL) - return (EINVAL); + if (ifc == NULL) { + return EINVAL; + } - if (ifunit(name) != NULL) - return (EEXIST); + if (ifunit(name) != NULL) { + return EEXIST; + } bytoff = bitoff = 0; wildcard = (unit == UINT32_MAX); @@ -475,22 +531,29 @@ if_clone_create(char *name, int len, void *params) * Find a free unit if none was given. */ if (wildcard) { - while ((bytoff < ifc->ifc_bmlen) - && (ifc->ifc_units[bytoff] == 0xff)) + while ((bytoff < ifc->ifc_bmlen) && + (ifc->ifc_units[bytoff] == 0xff)) { bytoff++; - if (bytoff >= ifc->ifc_bmlen) - return (ENOSPC); - while ((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0) + } + if (bytoff >= ifc->ifc_bmlen) { + return ENOSPC; + } + while ((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0) { bitoff++; + } unit = (bytoff << 3) + bitoff; } - if (unit > ifc->ifc_maxunit) - return (ENXIO); + if (unit > ifc->ifc_maxunit) { + return ENXIO; + } + lck_mtx_lock(&ifc->ifc_mutex); err = (*ifc->ifc_create)(ifc, unit, params); - if (err != 0) - return (err); + if (err != 0) { + lck_mtx_unlock(&ifc->ifc_mutex); + return err; + } if (!wildcard) { bytoff = unit >> 3; @@ -506,9 +569,11 @@ if_clone_create(char *name, int len, void *params) /* In the wildcard case, we need to update the name. */ if (wildcard) { - for (dp = name; *dp != '\0'; dp++); - if (snprintf(dp, len - (dp-name), "%d", unit) > - len - (dp-name) - 1) { + for (dp = name; *dp != '\0'; dp++) { + ; + } + if (snprintf(dp, len - (dp - name), "%d", unit) > + len - (dp - name) - 1) { /* * This can only be a programmer error and * there's no straightforward way to recover if @@ -517,10 +582,10 @@ if_clone_create(char *name, int len, void *params) panic("%s: interface name too long", __func__); /* NOTREACHED */ } - } + lck_mtx_unlock(&ifc->ifc_mutex); - return (0); + return 0; } /* @@ -529,36 +594,56 @@ if_clone_create(char *name, int len, void *params) static int if_clone_destroy(const char *name) { - struct if_clone *ifc; - struct ifnet *ifp; + struct if_clone *ifc = NULL; + struct ifnet *ifp = NULL; int bytoff, bitoff; u_int32_t unit; + int error = 0; ifc = if_clone_lookup(name, &unit); - if (ifc == NULL) - return (EINVAL); - if (unit < ifc->ifc_minifs) - return (EINVAL); + if (ifc == NULL) { + error = EINVAL; + goto done; + } + + if (unit < ifc->ifc_minifs) { + error = EINVAL; + goto done; + } - ifp = ifunit(name); - if (ifp == NULL) - return (ENXIO); + ifp = ifunit_ref(name); + if (ifp == NULL) { + error = ENXIO; + goto done; + } - if (ifc->ifc_destroy == NULL) - return (EOPNOTSUPP); + if (ifc->ifc_destroy == NULL) { + error = EOPNOTSUPP; + goto done; + } - (*ifc->ifc_destroy)(ifp); + lck_mtx_lock(&ifc->ifc_mutex); + error = (*ifc->ifc_destroy)(ifp); - /* - * Compute offset in the bitmap and deallocate the unit. - */ + if (error) { + lck_mtx_unlock(&ifc->ifc_mutex); + goto done; + } + + /* Compute offset in the bitmap and deallocate the unit. */ bytoff = unit >> 3; bitoff = unit - (bytoff << 3); KASSERT((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0, ("%s: bit is already cleared", __func__)); ifc->ifc_units[bytoff] &= ~(1 << bitoff); - return (0); + lck_mtx_unlock(&ifc->ifc_mutex); + +done: + if (ifp != NULL) { + ifnet_decr_iorefcnt(ifp); + } + return error; } /* @@ -574,33 +659,58 @@ if_clone_lookup(const char *name, u_int32_t *unitp) for (ifc = LIST_FIRST(&if_cloners); ifc != NULL;) { for (cp = name, i = 0; i < ifc->ifc_namelen; i++, cp++) { - if (ifc->ifc_name[i] != *cp) + if (ifc->ifc_name[i] != *cp) { goto next_ifc; + } } goto found_name; - next_ifc: +next_ifc: ifc = LIST_NEXT(ifc, ifc_list); } /* No match. */ - return ((struct if_clone *)NULL); + return (struct if_clone *)NULL; - found_name: +found_name: if (*cp == '\0') { i = UINT32_MAX; } else { for (i = 0; *cp != '\0'; cp++) { if (*cp < '0' || *cp > '9') { /* Bogus unit number. */ - return (NULL); + return NULL; } i = (i * 10) + (*cp - '0'); } } - if (unitp != NULL) + if (unitp != NULL) { *unitp = i; - return (ifc); + } + return ifc; +} + +void * +if_clone_softc_allocate(const struct if_clone *ifc) +{ + void *p_clone = NULL; + + VERIFY(ifc != NULL); + + p_clone = zalloc(ifc->ifc_zone); + if (p_clone != NULL) { + bzero(p_clone, ifc->ifc_softc_size); + } + + return p_clone; +} + +void +if_clone_softc_deallocate(const struct if_clone *ifc, void *p_softc) +{ + VERIFY(ifc != NULL && p_softc != NULL); + bzero(p_softc, ifc->ifc_softc_size); + zfree(ifc->ifc_zone, p_softc); } /* @@ -623,12 +733,20 @@ if_clone_attach(struct if_clone *ifc) */ maxclone = ifc->ifc_maxunit + 1; len = maxclone >> 3; - if ((len << 3) < maxclone) + if ((len << 3) < maxclone) { len++; + } ifc->ifc_units = _MALLOC(len, M_CLONE, M_WAITOK | M_ZERO); - if (ifc->ifc_units == NULL) + if (ifc->ifc_units == NULL) { return ENOBUFS; + } ifc->ifc_bmlen = len; + lck_mtx_init(&ifc->ifc_mutex, ifnet_lock_group, ifnet_lock_attr); + + if (ifc->ifc_softc_size != 0) { + ifc->ifc_zone = zone_create(ifc->ifc_name, ifc->ifc_softc_size, + ZC_DESTRUCTIBLE); + } LIST_INSERT_HEAD(&if_cloners, ifc, ifc_list); if_cloners_count++; @@ -656,6 +774,11 @@ if_clone_detach(struct if_clone *ifc) { LIST_REMOVE(ifc, ifc_list); FREE(ifc->ifc_units, M_CLONE); + if (ifc->ifc_softc_size != 0) { + zdestroy(ifc->ifc_zone); + } + + lck_mtx_destroy(&ifc->ifc_mutex, ifnet_lock_group); if_cloners_count--; } @@ -672,42 +795,59 @@ if_clone_list(int count, int *ret_total, user_addr_t dst) *ret_total = if_cloners_count; if (dst == USER_ADDR_NULL) { /* Just asking how many there are. */ - return (0); + return 0; } - if (count < 0) - return (EINVAL); + if (count < 0) { + return EINVAL; + } count = (if_cloners_count < count) ? if_cloners_count : count; for (ifc = LIST_FIRST(&if_cloners); ifc != NULL && count != 0; - ifc = LIST_NEXT(ifc, ifc_list), count--, dst += IFNAMSIZ) { + ifc = LIST_NEXT(ifc, ifc_list), count--, dst += IFNAMSIZ) { bzero(outbuf, sizeof(outbuf)); - strlcpy(outbuf, ifc->ifc_name, - min(strlen(ifc->ifc_name), IFNAMSIZ)); + strlcpy(outbuf, ifc->ifc_name, IFNAMSIZ); error = copyout(outbuf, dst, IFNAMSIZ); - if (error) + if (error) { break; + } } - return (error); + return error; } u_int32_t -if_functional_type(struct ifnet *ifp) +if_functional_type(struct ifnet *ifp, bool exclude_delegate) { u_int32_t ret = IFRTYPE_FUNCTIONAL_UNKNOWN; + if (ifp != NULL) { if (ifp->if_flags & IFF_LOOPBACK) { ret = IFRTYPE_FUNCTIONAL_LOOPBACK; - } else if (IFNET_IS_WIFI(ifp)) { - if (ifp->if_eflags & IFEF_AWDL) + } else if (IFNET_IS_COMPANION_LINK(ifp)) { + ret = IFRTYPE_FUNCTIONAL_COMPANIONLINK; + } else if ((exclude_delegate && + (ifp->if_family == IFNET_FAMILY_ETHERNET && + ifp->if_subfamily == IFNET_SUBFAMILY_WIFI)) || + (!exclude_delegate && IFNET_IS_WIFI(ifp))) { + if (ifp->if_eflags & IFEF_AWDL) { ret = IFRTYPE_FUNCTIONAL_WIFI_AWDL; - else + } else { ret = IFRTYPE_FUNCTIONAL_WIFI_INFRA; - } else if (IFNET_IS_CELLULAR(ifp)) { + } + } else if ((exclude_delegate && + (ifp->if_type == IFT_CELLULAR)) || + (!exclude_delegate && IFNET_IS_CELLULAR(ifp))) { ret = IFRTYPE_FUNCTIONAL_CELLULAR; - } else if (IFNET_IS_WIRED(ifp)) { + } else if (IFNET_IS_INTCOPROC(ifp)) { + ret = IFRTYPE_FUNCTIONAL_INTCOPROC; + } else if ((exclude_delegate && + (ifp->if_family == IFNET_FAMILY_ETHERNET || + ifp->if_family == IFNET_FAMILY_BOND || + ifp->if_family == IFNET_FAMILY_VLAN || + ifp->if_family == IFNET_FAMILY_FIREWIRE)) || + (!exclude_delegate && IFNET_IS_WIRED(ifp))) { ret = IFRTYPE_FUNCTIONAL_WIRED; } } @@ -722,7 +862,7 @@ if_functional_type(struct ifnet *ifp) __private_extern__ struct in_ifaddr * ifa_foraddr(unsigned int addr) { - return (ifa_foraddr_scoped(addr, IFSCOPE_NONE)); + return ifa_foraddr_scoped(addr, IFSCOPE_NONE); } /* @@ -740,24 +880,23 @@ ifa_foraddr_scoped(unsigned int addr, unsigned int scope) IFA_LOCK_SPIN(&ia->ia_ifa); if (ia->ia_addr.sin_addr.s_addr == addr && (scope == IFSCOPE_NONE || ia->ia_ifp->if_index == scope)) { - IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for caller */ + IFA_ADDREF_LOCKED(&ia->ia_ifa); /* for caller */ IFA_UNLOCK(&ia->ia_ifa); break; } IFA_UNLOCK(&ia->ia_ifa); } lck_rw_done(in_ifaddr_rwlock); - return (ia); + return ia; } -#if INET6 /* * Similar to ifa_foraddr, except that this for IPv6. */ __private_extern__ struct in6_ifaddr * ifa_foraddr6(struct in6_addr *addr6) { - return (ifa_foraddr6_scoped(addr6, IFSCOPE_NONE)); + return ifa_foraddr6_scoped(addr6, IFSCOPE_NONE); } __private_extern__ struct in6_ifaddr * @@ -766,7 +905,7 @@ ifa_foraddr6_scoped(struct in6_addr *addr6, unsigned int scope) struct in6_ifaddr *ia = NULL; lck_rw_lock_shared(&in6_ifaddr_rwlock); - for (ia = in6_ifaddrs; ia; ia = ia->ia_next) { + TAILQ_FOREACH(ia, IN6ADDR_HASH(addr6), ia6_hash) { IFA_LOCK(&ia->ia_ifa); if (IN6_ARE_ADDR_EQUAL(&ia->ia_addr.sin6_addr, addr6) && (scope == IFSCOPE_NONE || ia->ia_ifp->if_index == scope)) { @@ -778,9 +917,8 @@ ifa_foraddr6_scoped(struct in6_addr *addr6, unsigned int scope) } lck_rw_done(&in6_ifaddr_rwlock); - return (ia); + return ia; } -#endif /* INET6 */ /* * Return the first (primary) address of a given family on an interface. @@ -794,7 +932,7 @@ ifa_ifpgetprimary(struct ifnet *ifp, int family) TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) { IFA_LOCK_SPIN(ifa); if (ifa->ifa_addr->sa_family == family) { - IFA_ADDREF_LOCKED(ifa); /* for caller */ + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } @@ -802,25 +940,32 @@ ifa_ifpgetprimary(struct ifnet *ifp, int family) } ifnet_lock_done(ifp); - return (ifa); + return ifa; +} + +static inline int +ifa_equal(const struct sockaddr *sa1, const struct sockaddr *sa2) +{ + if (!sa1 || !sa2) { + return 0; + } + if (sa1->sa_len != sa2->sa_len) { + return 0; + } + + return bcmp(sa1, sa2, sa1->sa_len) == 0; } /* * Locate an interface based on a complete address. */ -/*ARGSUSED*/ struct ifaddr * -ifa_ifwithaddr(const struct sockaddr *addr) +ifa_ifwithaddr_locked(const struct sockaddr *addr) { struct ifnet *ifp; struct ifaddr *ifa; struct ifaddr *result = NULL; -#define equal(a1, a2) \ - (bcmp((const void*)(a1), (const void*)(a2), \ - ((const struct sockaddr *)(a1))->sa_len) == 0) - - ifnet_head_lock_shared(); for (ifp = ifnet_head.tqh_first; ifp && !result; ifp = ifp->if_link.tqe_next) { ifnet_lock_shared(ifp); @@ -831,9 +976,9 @@ ifa_ifwithaddr(const struct sockaddr *addr) IFA_UNLOCK(ifa); continue; } - if (equal(addr, ifa->ifa_addr)) { + if (ifa_equal(addr, ifa->ifa_addr)) { result = ifa; - IFA_ADDREF_LOCKED(ifa); /* for caller */ + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } @@ -841,9 +986,9 @@ ifa_ifwithaddr(const struct sockaddr *addr) ifa->ifa_broadaddr != NULL && /* IP6 doesn't have broadcast */ ifa->ifa_broadaddr->sa_len != 0 && - equal(ifa->ifa_broadaddr, addr)) { + ifa_equal(ifa->ifa_broadaddr, addr)) { result = ifa; - IFA_ADDREF_LOCKED(ifa); /* for caller */ + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } @@ -851,9 +996,22 @@ ifa_ifwithaddr(const struct sockaddr *addr) } ifnet_lock_done(ifp); } + + return result; +} + +struct ifaddr * +ifa_ifwithaddr(const struct sockaddr *addr) +{ + struct ifaddr *result = NULL; + + ifnet_head_lock_shared(); + + result = ifa_ifwithaddr_locked(addr); + ifnet_head_done(); - return (result); + return result; } /* * Locate the point to point interface with a given destination address. @@ -869,7 +1027,7 @@ ifa_ifwithdstaddr(const struct sockaddr *addr) ifnet_head_lock_shared(); for (ifp = ifnet_head.tqh_first; ifp && !result; ifp = ifp->if_link.tqe_next) { - if ((ifp->if_flags & IFF_POINTOPOINT)) { + if ((ifp->if_flags & IFF_POINTOPOINT)) { ifnet_lock_shared(ifp); for (ifa = ifp->if_addrhead.tqh_first; ifa; ifa = ifa->ifa_link.tqe_next) { @@ -879,10 +1037,9 @@ ifa_ifwithdstaddr(const struct sockaddr *addr) IFA_UNLOCK(ifa); continue; } - if (ifa->ifa_dstaddr && - equal(addr, ifa->ifa_dstaddr)) { + if (ifa_equal(addr, ifa->ifa_dstaddr)) { result = ifa; - IFA_ADDREF_LOCKED(ifa); /* for caller */ + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } @@ -892,25 +1049,24 @@ ifa_ifwithdstaddr(const struct sockaddr *addr) } } ifnet_head_done(); - return (result); + return result; } /* * Locate the source address of an interface based on a complete address. */ struct ifaddr * -ifa_ifwithaddr_scoped(const struct sockaddr *addr, unsigned int ifscope) +ifa_ifwithaddr_scoped_locked(const struct sockaddr *addr, unsigned int ifscope) { struct ifaddr *result = NULL; struct ifnet *ifp; - if (ifscope == IFSCOPE_NONE) - return (ifa_ifwithaddr(addr)); + if (ifscope == IFSCOPE_NONE) { + return ifa_ifwithaddr_locked(addr); + } - ifnet_head_lock_shared(); if (ifscope > (unsigned int)if_index) { - ifnet_head_done(); - return (NULL); + return NULL; } ifp = ifindex2ifnet[ifscope]; @@ -930,9 +1086,9 @@ ifa_ifwithaddr_scoped(const struct sockaddr *addr, unsigned int ifscope) IFA_UNLOCK(ifa); continue; } - if (equal(addr, ifa->ifa_addr)) { + if (ifa_equal(addr, ifa->ifa_addr)) { result = ifa; - IFA_ADDREF_LOCKED(ifa); /* for caller */ + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } @@ -940,9 +1096,9 @@ ifa_ifwithaddr_scoped(const struct sockaddr *addr, unsigned int ifscope) ifa->ifa_broadaddr != NULL && /* IP6 doesn't have broadcast */ ifa->ifa_broadaddr->sa_len != 0 && - equal(ifa->ifa_broadaddr, addr)) { + ifa_equal(ifa->ifa_broadaddr, addr)) { result = ifa; - IFA_ADDREF_LOCKED(ifa); /* for caller */ + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } @@ -950,21 +1106,34 @@ ifa_ifwithaddr_scoped(const struct sockaddr *addr, unsigned int ifscope) } ifnet_lock_done(ifp); } + + return result; +} + +struct ifaddr * +ifa_ifwithaddr_scoped(const struct sockaddr *addr, unsigned int ifscope) +{ + struct ifaddr *result = NULL; + + ifnet_head_lock_shared(); + + result = ifa_ifwithaddr_scoped_locked(addr, ifscope); + ifnet_head_done(); - return (result); + return result; } struct ifaddr * ifa_ifwithnet(const struct sockaddr *addr) { - return (ifa_ifwithnet_common(addr, IFSCOPE_NONE)); + return ifa_ifwithnet_common(addr, IFSCOPE_NONE); } struct ifaddr * ifa_ifwithnet_scoped(const struct sockaddr *addr, unsigned int ifscope) { - return (ifa_ifwithnet_common(addr, ifscope)); + return ifa_ifwithnet_common(addr, ifscope); } /* @@ -980,14 +1149,9 @@ ifa_ifwithnet_common(const struct sockaddr *addr, unsigned int ifscope) u_int af = addr->sa_family; const char *addr_data = addr->sa_data, *cplim; -#if INET6 - if ((af != AF_INET && af != AF_INET6) || - (af == AF_INET && !ip_doscopedroute) || - (af == AF_INET6 && !ip6_doscopedroute)) -#else - if (af != AF_INET || !ip_doscopedroute) -#endif /* !INET6 */ + if (af != AF_INET && af != AF_INET6) { ifscope = IFSCOPE_NONE; + } ifnet_head_lock_shared(); /* @@ -999,11 +1163,12 @@ ifa_ifwithnet_common(const struct sockaddr *addr, unsigned int ifscope) (const struct sockaddr_dl *)(uintptr_t)(size_t)addr; if (sdl->sdl_index && sdl->sdl_index <= if_index) { ifa = ifnet_addrs[sdl->sdl_index - 1]; - if (ifa != NULL) + if (ifa != NULL) { IFA_ADDREF(ifa); + } ifnet_head_done(); - return (ifa); + return ifa; } } @@ -1014,7 +1179,7 @@ ifa_ifwithnet_common(const struct sockaddr *addr, unsigned int ifscope) for (ifp = ifnet_head.tqh_first; ifp; ifp = ifp->if_link.tqe_next) { ifnet_lock_shared(ifp); for (ifa = ifp->if_addrhead.tqh_first; ifa; - ifa = ifa->ifa_link.tqe_next) { + ifa = ifa->ifa_link.tqe_next) { const char *cp, *cp2, *cp3; IFA_LOCK(ifa); @@ -1050,9 +1215,11 @@ next: cp3 = ifa->ifa_netmask->sa_data; cplim = ifa->ifa_netmask->sa_len + (char *)ifa->ifa_netmask; - while (cp3 < cplim) - if ((*cp++ ^ *cp2++) & *cp3++) + while (cp3 < cplim) { + if ((*cp++ ^ *cp2++) & *cp3++) { goto next; /* next address! */ + } + } /* * If the netmask of what we just found * is more specific than what we had before @@ -1063,10 +1230,11 @@ next: if (ifa_maybe == NULL || rn_refines((caddr_t)ifa->ifa_netmask, (caddr_t)ifa_maybe->ifa_netmask)) { - IFA_ADDREF_LOCKED(ifa); /* ifa_maybe */ + IFA_ADDREF_LOCKED(ifa); /* ifa_maybe */ IFA_UNLOCK(ifa); - if (ifa_maybe != NULL) + if (ifa_maybe != NULL) { IFA_REMREF(ifa_maybe); + } ifa_maybe = ifa; } else { IFA_UNLOCK(ifa); @@ -1075,22 +1243,44 @@ next: } ifnet_lock_done(ifp); - if (ifa != NULL) + if (ifa != NULL) { break; + } } ifnet_head_done(); - if (ifa == NULL) + if (ifa == NULL) { ifa = ifa_maybe; - else if (ifa_maybe != NULL) + } else if (ifa_maybe != NULL) { IFA_REMREF(ifa_maybe); + } + + return ifa; +} - return (ifa); +/* + * Find an interface address specific to an interface best matching + * a given address applying same source address selection rules + * as done in the kernel for implicit source address binding + */ +struct ifaddr * +ifaof_ifpforaddr_select(const struct sockaddr *addr, struct ifnet *ifp) +{ + u_int af = addr->sa_family; + + if (af == AF_INET6) { + return in6_selectsrc_core_ifa(__DECONST(struct sockaddr_in6 *, addr), ifp, 0); + } + + return ifaof_ifpforaddr(addr, ifp); } /* * Find an interface address specific to an interface best matching - * a given address. + * a given address without regards to source address selection. + * + * This is appropriate for use-cases where we just want to update/init + * some data structure like routing table entries. */ struct ifaddr * ifaof_ifpforaddr(const struct sockaddr *addr, struct ifnet *ifp) @@ -1102,25 +1292,26 @@ ifaof_ifpforaddr(const struct sockaddr *addr, struct ifnet *ifp) struct ifaddr *better_ifa_maybe = NULL; u_int af = addr->sa_family; - if (af >= AF_MAX) - return (NULL); + if (af >= AF_MAX) { + return NULL; + } ifnet_lock_shared(ifp); for (ifa = ifp->if_addrhead.tqh_first; ifa; - ifa = ifa->ifa_link.tqe_next) { + ifa = ifa->ifa_link.tqe_next) { IFA_LOCK(ifa); if (ifa->ifa_addr->sa_family != af) { IFA_UNLOCK(ifa); continue; } if (ifa_maybe == NULL) { - IFA_ADDREF_LOCKED(ifa); /* for ifa_maybe */ + IFA_ADDREF_LOCKED(ifa); /* for ifa_maybe */ ifa_maybe = ifa; } if (ifa->ifa_netmask == 0) { - if (equal(addr, ifa->ifa_addr) || (ifa->ifa_dstaddr && - equal(addr, ifa->ifa_dstaddr))) { - IFA_ADDREF_LOCKED(ifa); /* for caller */ + if (ifa_equal(addr, ifa->ifa_addr) || + ifa_equal(addr, ifa->ifa_dstaddr)) { + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } @@ -1128,15 +1319,15 @@ ifaof_ifpforaddr(const struct sockaddr *addr, struct ifnet *ifp) continue; } if (ifp->if_flags & IFF_POINTOPOINT) { - if (ifa->ifa_dstaddr && equal(addr, ifa->ifa_dstaddr)) { - IFA_ADDREF_LOCKED(ifa); /* for caller */ + if (ifa_equal(addr, ifa->ifa_dstaddr)) { + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } } else { - if (equal(addr, ifa->ifa_addr)) { + if (ifa_equal(addr, ifa->ifa_addr)) { /* exact match */ - IFA_ADDREF_LOCKED(ifa); /* for caller */ + IFA_ADDREF_LOCKED(ifa); /* for caller */ IFA_UNLOCK(ifa); break; } @@ -1145,9 +1336,11 @@ ifaof_ifpforaddr(const struct sockaddr *addr, struct ifnet *ifp) cp3 = ifa->ifa_netmask->sa_data; cplim = ifa->ifa_netmask->sa_len + (char *)ifa->ifa_netmask; - for (; cp3 < cplim; cp3++) - if ((*cp++ ^ *cp2++) & *cp3) + for (; cp3 < cplim; cp3++) { + if ((*cp++ ^ *cp2++) & *cp3) { break; + } + } if (cp3 == cplim) { /* subnet match */ if (better_ifa_maybe == NULL) { @@ -1172,12 +1365,14 @@ ifaof_ifpforaddr(const struct sockaddr *addr, struct ifnet *ifp) ifnet_lock_done(ifp); - if (better_ifa_maybe != NULL) + if (better_ifa_maybe != NULL) { IFA_REMREF(better_ifa_maybe); - if (ifa_maybe != NULL) + } + if (ifa_maybe != NULL) { IFA_REMREF(ifa_maybe); + } - return (ifa); + return ifa; } #include @@ -1195,12 +1390,13 @@ link_rtrequest(int cmd, struct rtentry *rt, struct sockaddr *sa) struct ifnet *ifp; void (*ifa_rtrequest)(int, struct rtentry *, struct sockaddr *); - lck_mtx_assert(rnh_lock, LCK_MTX_ASSERT_OWNED); + LCK_MTX_ASSERT(rnh_lock, LCK_MTX_ASSERT_OWNED); RT_LOCK_ASSERT_HELD(rt); if (cmd != RTM_ADD || ((ifa = rt->rt_ifa) == 0) || - ((ifp = ifa->ifa_ifp) == 0) || ((dst = rt_key(rt)) == 0)) + ((ifp = ifa->ifa_ifp) == 0) || ((dst = rt_key(rt)) == 0)) { return; + } /* Become a regular mutex, just in case */ RT_CONVERT_LOCK(rt); @@ -1211,8 +1407,9 @@ link_rtrequest(int cmd, struct rtentry *rt, struct sockaddr *sa) IFA_LOCK_SPIN(ifa); ifa_rtrequest = ifa->ifa_rtrequest; IFA_UNLOCK(ifa); - if (ifa_rtrequest != NULL && ifa_rtrequest != link_rtrequest) + if (ifa_rtrequest != NULL && ifa_rtrequest != link_rtrequest) { ifa_rtrequest(cmd, rt, sa); + } IFA_REMREF(ifa); } } @@ -1229,13 +1426,12 @@ link_rtrequest(int cmd, struct rtentry *rt, struct sockaddr *sa) * up/down state and updating the rest of the flags. */ __private_extern__ void -if_updown( - struct ifnet *ifp, - int up) +if_updown( struct ifnet *ifp, int up) { + u_int32_t eflags; int i; struct ifaddr **ifa; - struct timespec tv; + struct timespec tv; struct ifclassq *ifq = &ifp->if_snd; /* Wait until no one else is changing the up/down state */ @@ -1249,25 +1445,34 @@ if_updown( /* Verify that the interface isn't already in the right state */ if ((!up && (ifp->if_flags & IFF_UP) == 0) || - (up && (ifp->if_flags & IFF_UP) == IFF_UP)) { + (up && (ifp->if_flags & IFF_UP) == IFF_UP)) { return; } /* Indicate that the up/down state is changing */ - ifp->if_eflags |= IFEF_UPDOWNCHANGE; + eflags = if_set_eflags(ifp, IFEF_UPDOWNCHANGE); + ASSERT((eflags & IFEF_UPDOWNCHANGE) == 0); /* Mark interface up or down */ if (up) { ifp->if_flags |= IFF_UP; - } - else { + } else { ifp->if_flags &= ~IFF_UP; } ifnet_touch_lastchange(ifp); + ifnet_touch_lastupdown(ifp); /* Drop the lock to notify addresses and route */ ifnet_lock_done(ifp); + + IFCQ_LOCK(ifq); + if_qflush(ifp, 1); + + /* Inform all transmit queues about the new link state */ + ifnet_update_sndq(ifq, up ? CLASSQ_EV_LINK_UP : CLASSQ_EV_LINK_DOWN); + IFCQ_UNLOCK(ifq); + if (ifnet_get_address_list(ifp, &ifa) == 0) { for (i = 0; ifa[i] != 0; i++) { pfctlinput(up ? PRC_IFUP : PRC_IFDOWN, ifa[i]->ifa_addr); @@ -1276,17 +1481,9 @@ if_updown( } rt_ifmsg(ifp); - if (!up) - if_qflush(ifp, 0); - - /* Inform all transmit queues about the new link state */ - IFCQ_LOCK(ifq); - ifnet_update_sndq(ifq, up ? CLASSQ_EV_LINK_UP : CLASSQ_EV_LINK_DOWN); - IFCQ_UNLOCK(ifq); - /* Aquire the lock to clear the changing flag */ ifnet_lock_exclusive(ifp); - ifp->if_eflags &= ~IFEF_UPDOWNCHANGE; + if_clear_eflags(ifp, IFEF_UPDOWNCHANGE); wakeup(&ifp->if_eflags); } @@ -1324,22 +1521,19 @@ if_qflush(struct ifnet *ifp, int ifq_locked) { struct ifclassq *ifq = &ifp->if_snd; - if (!ifq_locked) + if (!ifq_locked) { IFCQ_LOCK(ifq); + } - if (IFCQ_IS_ENABLED(ifq)) - IFCQ_PURGE(ifq); -#if PF_ALTQ - if (IFCQ_IS_DRAINING(ifq)) - ifq->ifcq_drain = 0; - if (ALTQ_IS_ENABLED(IFCQ_ALTQ(ifq))) - ALTQ_PURGE(IFCQ_ALTQ(ifq)); -#endif /* PF_ALTQ */ + if (IFCQ_IS_ENABLED(ifq)) { + fq_if_request_classq(ifq, CLASSQRQ_PURGE, NULL); + } VERIFY(IFCQ_IS_EMPTY(ifq)); - if (!ifq_locked) + if (!ifq_locked) { IFCQ_UNLOCK(ifq); + } } void @@ -1348,83 +1542,140 @@ if_qflush_sc(struct ifnet *ifp, mbuf_svc_class_t sc, u_int32_t flow, { struct ifclassq *ifq = &ifp->if_snd; u_int32_t cnt = 0, len = 0; - u_int32_t a_cnt = 0, a_len = 0; VERIFY(sc == MBUF_SC_UNSPEC || MBUF_VALID_SC(sc)); VERIFY(flow != 0); - if (!ifq_locked) + if (!ifq_locked) { IFCQ_LOCK(ifq); + } - if (IFCQ_IS_ENABLED(ifq)) - IFCQ_PURGE_SC(ifq, sc, flow, cnt, len); -#if PF_ALTQ - if (IFCQ_IS_DRAINING(ifq)) { - VERIFY((signed)(ifq->ifcq_drain - cnt) >= 0); - ifq->ifcq_drain -= cnt; + if (IFCQ_IS_ENABLED(ifq)) { + cqrq_purge_sc_t req = { sc, flow, 0, 0 }; + + fq_if_request_classq(ifq, CLASSQRQ_PURGE_SC, &req); + cnt = req.packets; + len = req.bytes; } - if (ALTQ_IS_ENABLED(IFCQ_ALTQ(ifq))) - ALTQ_PURGE_SC(IFCQ_ALTQ(ifq), sc, flow, a_cnt, a_len); -#endif /* PF_ALTQ */ - if (!ifq_locked) + if (!ifq_locked) { IFCQ_UNLOCK(ifq); + } - if (packets != NULL) - *packets = cnt + a_cnt; - if (bytes != NULL) - *bytes = len + a_len; + if (packets != NULL) { + *packets = cnt; + } + if (bytes != NULL) { + *bytes = len; + } } /* - * Map interface name to - * interface structure pointer. + * Extracts interface unit number and name from string, returns -1 upon failure. + * Upon success, returns extracted unit number, and interface name in dst. */ -struct ifnet * -ifunit(const char *name) +int +ifunit_extract(const char *src, char *dst, size_t dstlen, int *unit) { - char namebuf[IFNAMSIZ + 1]; const char *cp; - struct ifnet *ifp; - int unit; - unsigned len, m; + size_t len, m; char c; + int u; - len = strlen(name); - if (len < 2 || len > IFNAMSIZ) - return (NULL); - cp = name + len - 1; + if (src == NULL || dst == NULL || dstlen == 0 || unit == NULL) { + return -1; + } + + len = strlen(src); + if (len < 2 || len > dstlen) { + return -1; + } + cp = src + len - 1; c = *cp; - if (c < '0' || c > '9') - return (NULL); /* trailing garbage */ - unit = 0; + if (c < '0' || c > '9') { + return -1; /* trailing garbage */ + } + u = 0; m = 1; do { - if (cp == name) - return (NULL); /* no interface name */ - unit += (c - '0') * m; - if (unit > 1000000) - return (NULL); /* number is unreasonable */ + if (cp == src) { + return -1; /* no interface name */ + } + u += (c - '0') * m; + if (u > 1000000) { + return -1; /* number is unreasonable */ + } m *= 10; c = *--cp; } while (c >= '0' && c <= '9'); - len = cp - name + 1; - bcopy(name, namebuf, len); - namebuf[len] = '\0'; + len = cp - src + 1; + bcopy(src, dst, len); + dst[len] = '\0'; + *unit = u; + + return 0; +} + +/* + * Map interface name to + * interface structure pointer. + */ +static struct ifnet * +ifunit_common(const char *name, boolean_t hold) +{ + char namebuf[IFNAMSIZ + 1]; + struct ifnet *ifp; + int unit; + + if (ifunit_extract(name, namebuf, sizeof(namebuf), &unit) < 0) { + return NULL; + } + + /* for safety, since we use strcmp() below */ + namebuf[sizeof(namebuf) - 1] = '\0'; + /* * Now search all the interfaces for this name/number */ ifnet_head_lock_shared(); TAILQ_FOREACH(ifp, &ifnet_head, if_link) { - if (strncmp(ifp->if_name, namebuf, len)) + /* + * Use strcmp() rather than strncmp() here, + * since we want to match the entire string. + */ + if (strcmp(ifp->if_name, namebuf)) { continue; - if (unit == ifp->if_unit) + } + if (unit == ifp->if_unit) { break; + } + } + + /* if called from ifunit_ref() and ifnet is not attached, bail */ + if (hold && ifp != NULL && !ifnet_is_attached(ifp, 1)) { + ifp = NULL; } + ifnet_head_done(); - return (ifp); + return ifp; +} + +struct ifnet * +ifunit(const char *name) +{ + return ifunit_common(name, FALSE); } +/* + * Similar to ifunit(), except that we hold an I/O reference count on an + * attached interface, which must later be released via ifnet_decr_iorefcnt(). + * Will return NULL unless interface exists and is fully attached. + */ +struct ifnet * +ifunit_ref(const char *name) +{ + return ifunit_common(name, TRUE); +} /* * Map interface name in a sockaddr_dl to @@ -1433,12 +1684,13 @@ ifunit(const char *name) struct ifnet * if_withname(struct sockaddr *sa) { - char ifname[IFNAMSIZ+1]; + char ifname[IFNAMSIZ + 1]; struct sockaddr_dl *sdl = (struct sockaddr_dl *)(void *)sa; - if ( (sa->sa_family != AF_LINK) || (sdl->sdl_nlen == 0) || - (sdl->sdl_nlen > IFNAMSIZ) ) - return (NULL); + if ((sa->sa_family != AF_LINK) || (sdl->sdl_nlen == 0) || + (sdl->sdl_nlen > IFNAMSIZ)) { + return NULL; + } /* * ifunit wants a null-terminated name. It may not be null-terminated @@ -1449,7 +1701,7 @@ if_withname(struct sockaddr *sa) bcopy(sdl->sdl_data, ifname, sdl->sdl_nlen); ifname[sdl->sdl_nlen] = '\0'; - return (ifunit(ifname)); + return ifunit(ifname); } static __attribute__((noinline)) int @@ -1458,22 +1710,22 @@ ifioctl_ifconf(u_long cmd, caddr_t data) int error = 0; switch (cmd) { - case OSIOCGIFCONF32: /* struct ifconf32 */ - case SIOCGIFCONF32: { /* struct ifconf32 */ + case OSIOCGIFCONF32: /* struct ifconf32 */ + case SIOCGIFCONF32: { /* struct ifconf32 */ struct ifconf32 ifc; - bcopy(data, &ifc, sizeof (ifc)); + bcopy(data, &ifc, sizeof(ifc)); error = ifconf(cmd, CAST_USER_ADDR_T(ifc.ifc_req), &ifc.ifc_len); - bcopy(&ifc, data, sizeof (ifc)); + bcopy(&ifc, data, sizeof(ifc)); break; } - case SIOCGIFCONF64: /* struct ifconf64 */ - case OSIOCGIFCONF64: { /* struct ifconf64 */ + case SIOCGIFCONF64: /* struct ifconf64 */ + case OSIOCGIFCONF64: { /* struct ifconf64 */ struct ifconf64 ifc; - bcopy(data, &ifc, sizeof (ifc)); + bcopy(data, &ifc, sizeof(ifc)); error = ifconf(cmd, ifc.ifc_req, &ifc.ifc_len); - bcopy(&ifc, data, sizeof (ifc)); + bcopy(&ifc, data, sizeof(ifc)); break; } @@ -1482,7 +1734,7 @@ ifioctl_ifconf(u_long cmd, caddr_t data) /* NOTREACHED */ } - return (error); + return error; } static __attribute__((noinline)) int @@ -1491,21 +1743,21 @@ ifioctl_ifclone(u_long cmd, caddr_t data) int error = 0; switch (cmd) { - case SIOCIFGCLONERS32: { /* struct if_clonereq32 */ + case SIOCIFGCLONERS32: { /* struct if_clonereq32 */ struct if_clonereq32 ifcr; - bcopy(data, &ifcr, sizeof (ifcr)); + bcopy(data, &ifcr, sizeof(ifcr)); error = if_clone_list(ifcr.ifcr_count, &ifcr.ifcr_total, CAST_USER_ADDR_T(ifcr.ifcru_buffer)); - bcopy(&ifcr, data, sizeof (ifcr)); + bcopy(&ifcr, data, sizeof(ifcr)); break; } - case SIOCIFGCLONERS64: { /* struct if_clonereq64 */ + case SIOCIFGCLONERS64: { /* struct if_clonereq64 */ struct if_clonereq64 ifcr; - bcopy(data, &ifcr, sizeof (ifcr)); + bcopy(data, &ifcr, sizeof(ifcr)); error = if_clone_list(ifcr.ifcr_count, &ifcr.ifcr_total, ifcr.ifcru_buffer); - bcopy(&ifcr, data, sizeof (ifcr)); + bcopy(&ifcr, data, sizeof(ifcr)); break; } @@ -1514,7 +1766,7 @@ ifioctl_ifclone(u_long cmd, caddr_t data) /* NOTREACHED */ } - return (error); + return error; } static __attribute__((noinline)) int @@ -1527,13 +1779,14 @@ ifioctl_ifdesc(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) VERIFY(ifp != NULL); switch (cmd) { - case SIOCSIFDESC: { /* struct if_descreq */ - if ((error = proc_suser(p)) != 0) - break; + case SIOCSIFDESC: { /* struct if_descreq */ + if ((error = proc_suser(p)) != 0) { + break; + } ifnet_lock_exclusive(ifp); - bcopy(&ifdr->ifdr_len, &ifdr_len, sizeof (ifdr_len)); - if (ifdr_len > sizeof (ifdr->ifdr_desc) || + bcopy(&ifdr->ifdr_len, &ifdr_len, sizeof(ifdr_len)); + if (ifdr_len > sizeof(ifdr->ifdr_desc) || ifdr_len > ifp->if_desc.ifd_maxlen) { error = EINVAL; ifnet_lock_done(ifp); @@ -1549,11 +1802,11 @@ ifioctl_ifdesc(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) break; } - case SIOCGIFDESC: { /* struct if_descreq */ + case SIOCGIFDESC: { /* struct if_descreq */ ifnet_lock_shared(ifp); - ifdr_len = MIN(ifp->if_desc.ifd_len, sizeof (ifdr->ifdr_desc)); - bcopy(&ifdr_len, &ifdr->ifdr_len, sizeof (ifdr_len)); - bzero(&ifdr->ifdr_desc, sizeof (ifdr->ifdr_desc)); + ifdr_len = MIN(ifp->if_desc.ifd_len, sizeof(ifdr->ifdr_desc)); + bcopy(&ifdr_len, &ifdr->ifdr_len, sizeof(ifdr_len)); + bzero(&ifdr->ifdr_desc, sizeof(ifdr->ifdr_desc)); if (ifdr_len > 0) { bcopy(ifp->if_desc.ifd_desc, ifdr->ifdr_desc, ifdr_len); } @@ -1566,7 +1819,7 @@ ifioctl_ifdesc(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) /* NOTREACHED */ } - return (error); + return error; } static __attribute__((noinline)) int @@ -1581,11 +1834,23 @@ ifioctl_linkparams(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) ifq = &ifp->if_snd; switch (cmd) { - case SIOCSIFLINKPARAMS: { /* struct if_linkparamsreq */ - struct tb_profile tb = { 0, 0, 0 }; + case SIOCSIFLINKPARAMS: { /* struct if_linkparamsreq */ + struct tb_profile tb = { .rate = 0, .percent = 0, .depth = 0 }; + + if ((error = proc_suser(p)) != 0) { + break; + } + - if ((error = proc_suser(p)) != 0) - break; + char netem_name[32]; + (void) snprintf(netem_name, sizeof(netem_name), + "if_output_netem_%s", if_name(ifp)); + error = netem_config(&ifp->if_output_netem, netem_name, + &iflpr->iflpr_output_netem, (void *)ifp, + ifnet_enqueue_netem, NETEM_MAX_BATCH_SIZE); + if (error != 0) { + break; + } IFCQ_LOCK(ifq); if (!IFCQ_IS_READY(ifq)) { @@ -1594,54 +1859,56 @@ ifioctl_linkparams(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) break; } bcopy(&iflpr->iflpr_output_tbr_rate, &tb.rate, - sizeof (tb.rate)); + sizeof(tb.rate)); bcopy(&iflpr->iflpr_output_tbr_percent, &tb.percent, - sizeof (tb.percent)); + sizeof(tb.percent)); error = ifclassq_tbr_set(ifq, &tb, TRUE); IFCQ_UNLOCK(ifq); break; } - case SIOCGIFLINKPARAMS: { /* struct if_linkparamsreq */ + case SIOCGIFLINKPARAMS: { /* struct if_linkparamsreq */ u_int32_t sched_type = PKTSCHEDT_NONE, flags = 0; u_int64_t tbr_bw = 0, tbr_pct = 0; IFCQ_LOCK(ifq); -#if PF_ALTQ - if (ALTQ_IS_ENABLED(IFCQ_ALTQ(ifq))) { - sched_type = IFCQ_ALTQ(ifq)->altq_type; - flags |= IFLPRF_ALTQ; - } else -#endif /* PF_ALTQ */ - { - if (IFCQ_IS_ENABLED(ifq)) - sched_type = ifq->ifcq_type; + + if (IFCQ_IS_ENABLED(ifq)) { + sched_type = ifq->ifcq_type; } + bcopy(&sched_type, &iflpr->iflpr_output_sched, - sizeof (iflpr->iflpr_output_sched)); + sizeof(iflpr->iflpr_output_sched)); if (IFCQ_TBR_IS_ENABLED(ifq)) { tbr_bw = ifq->ifcq_tbr.tbr_rate_raw; tbr_pct = ifq->ifcq_tbr.tbr_percent; } bcopy(&tbr_bw, &iflpr->iflpr_output_tbr_rate, - sizeof (iflpr->iflpr_output_tbr_rate)); + sizeof(iflpr->iflpr_output_tbr_rate)); bcopy(&tbr_pct, &iflpr->iflpr_output_tbr_percent, - sizeof (iflpr->iflpr_output_tbr_percent)); + sizeof(iflpr->iflpr_output_tbr_percent)); IFCQ_UNLOCK(ifq); if (ifp->if_output_sched_model == - IFNET_SCHED_MODEL_DRIVER_MANAGED) + IFNET_SCHED_MODEL_DRIVER_MANAGED) { flags |= IFLPRF_DRVMANAGED; - bcopy(&flags, &iflpr->iflpr_flags, sizeof (iflpr->iflpr_flags)); + } + bcopy(&flags, &iflpr->iflpr_flags, sizeof(iflpr->iflpr_flags)); bcopy(&ifp->if_output_bw, &iflpr->iflpr_output_bw, - sizeof (iflpr->iflpr_output_bw)); + sizeof(iflpr->iflpr_output_bw)); bcopy(&ifp->if_input_bw, &iflpr->iflpr_input_bw, - sizeof (iflpr->iflpr_input_bw)); + sizeof(iflpr->iflpr_input_bw)); bcopy(&ifp->if_output_lt, &iflpr->iflpr_output_lt, - sizeof (iflpr->iflpr_output_lt)); + sizeof(iflpr->iflpr_output_lt)); bcopy(&ifp->if_input_lt, &iflpr->iflpr_input_lt, - sizeof (iflpr->iflpr_input_lt)); + sizeof(iflpr->iflpr_input_lt)); + + if (ifp->if_output_netem != NULL) { + netem_get_params(ifp->if_output_netem, + &iflpr->iflpr_output_netem); + } + break; } @@ -1650,7 +1917,7 @@ ifioctl_linkparams(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) /* NOTREACHED */ } - return (error); + return error; } static __attribute__((noinline)) int @@ -1663,14 +1930,15 @@ ifioctl_qstats(struct ifnet *ifp, u_long cmd, caddr_t data) VERIFY(ifp != NULL); switch (cmd) { - case SIOCGIFQUEUESTATS: { /* struct if_qstatsreq */ - bcopy(&ifqr->ifqr_slot, &ifqr_slot, sizeof (ifqr_slot)); - bcopy(&ifqr->ifqr_len, &ifqr_len, sizeof (ifqr_len)); + case SIOCGIFQUEUESTATS: { /* struct if_qstatsreq */ + bcopy(&ifqr->ifqr_slot, &ifqr_slot, sizeof(ifqr_slot)); + bcopy(&ifqr->ifqr_len, &ifqr_len, sizeof(ifqr_len)); error = ifclassq_getqstats(&ifp->if_snd, ifqr_slot, ifqr->ifqr_buf, &ifqr_len); - if (error != 0) + if (error != 0) { ifqr_len = 0; - bcopy(&ifqr_len, &ifqr->ifqr_len, sizeof (ifqr_len)); + } + bcopy(&ifqr_len, &ifqr->ifqr_len, sizeof(ifqr_len)); break; } @@ -1679,7 +1947,7 @@ ifioctl_qstats(struct ifnet *ifp, u_long cmd, caddr_t data) /* NOTREACHED */ } - return (error); + return error; } static __attribute__((noinline)) int @@ -1692,203 +1960,888 @@ ifioctl_throttle(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) VERIFY(ifp != NULL); switch (cmd) { - case SIOCSIFTHROTTLE: { /* struct if_throttlereq */ + case SIOCSIFTHROTTLE: { /* struct if_throttlereq */ /* * XXX: Use priv_check_cred() instead of root check? */ - if ((error = proc_suser(p)) != 0) - break; - - bcopy(&ifthr->ifthr_level, &ifthr_level, sizeof (ifthr_level)); + if ((error = proc_suser(p)) != 0) { + break; + } + + bcopy(&ifthr->ifthr_level, &ifthr_level, sizeof(ifthr_level)); error = ifnet_set_throttle(ifp, ifthr_level); - if (error == EALREADY) + if (error == EALREADY) { error = 0; + } break; } - case SIOCGIFTHROTTLE: { /* struct if_throttlereq */ + case SIOCGIFTHROTTLE: { /* struct if_throttlereq */ if ((error = ifnet_get_throttle(ifp, &ifthr_level)) == 0) { bcopy(&ifthr_level, &ifthr->ifthr_level, - sizeof (ifthr_level)); + sizeof(ifthr_level)); + } + break; + } + + default: + VERIFY(0); + /* NOTREACHED */ + } + + return error; +} + +static int +ifioctl_getnetagents(struct ifnet *ifp, u_int32_t *count, user_addr_t uuid_p) +{ + int error = 0; + u_int32_t index = 0; + u_int32_t valid_netagent_count = 0; + *count = 0; + + ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_SHARED); + + if (ifp->if_agentids != NULL) { + for (index = 0; index < ifp->if_agentcount; index++) { + uuid_t *netagent_uuid = &(ifp->if_agentids[index]); + if (!uuid_is_null(*netagent_uuid)) { + if (uuid_p != USER_ADDR_NULL) { + error = copyout(netagent_uuid, + uuid_p + sizeof(uuid_t) * valid_netagent_count, + sizeof(uuid_t)); + if (error != 0) { + return error; + } + } + valid_netagent_count++; + } + } + } + *count = valid_netagent_count; + + return 0; +} + +#define IF_MAXAGENTS 64 +#define IF_AGENT_INCREMENT 8 +int +if_add_netagent_locked(struct ifnet *ifp, uuid_t new_agent_uuid) +{ + VERIFY(ifp != NULL); + + uuid_t *first_empty_slot = NULL; + u_int32_t index = 0; + bool already_added = FALSE; + + if (ifp->if_agentids != NULL) { + for (index = 0; index < ifp->if_agentcount; index++) { + uuid_t *netagent_uuid = &(ifp->if_agentids[index]); + if (uuid_compare(*netagent_uuid, new_agent_uuid) == 0) { + /* Already present, ignore */ + already_added = TRUE; + break; + } + if (first_empty_slot == NULL && + uuid_is_null(*netagent_uuid)) { + first_empty_slot = netagent_uuid; + } + } + } + if (already_added) { + /* Already added agent, don't return an error */ + return 0; + } + if (first_empty_slot == NULL) { + if (ifp->if_agentcount >= IF_MAXAGENTS) { + /* No room for another netagent UUID, bail */ + return ENOMEM; + } else { + /* Calculate new array size */ + u_int32_t new_agent_count = + MIN(ifp->if_agentcount + IF_AGENT_INCREMENT, + IF_MAXAGENTS); + + /* Reallocate array */ + uuid_t *new_agent_array = _REALLOC(ifp->if_agentids, + sizeof(uuid_t) * new_agent_count, M_NETAGENT, + M_WAITOK | M_ZERO); + if (new_agent_array == NULL) { + return ENOMEM; + } + + /* Save new array */ + ifp->if_agentids = new_agent_array; + + /* Set first empty slot */ + first_empty_slot = + &(ifp->if_agentids[ifp->if_agentcount]); + + /* Save new array length */ + ifp->if_agentcount = new_agent_count; + } + } + uuid_copy(*first_empty_slot, new_agent_uuid); + netagent_post_updated_interfaces(new_agent_uuid); + return 0; +} + +int +if_add_netagent(struct ifnet *ifp, uuid_t new_agent_uuid) +{ + VERIFY(ifp != NULL); + + ifnet_lock_exclusive(ifp); + + int error = if_add_netagent_locked(ifp, new_agent_uuid); + + ifnet_lock_done(ifp); + + return error; +} + +static int +if_delete_netagent_locked(struct ifnet *ifp, uuid_t remove_agent_uuid) +{ + u_int32_t index = 0; + bool removed_agent_id = FALSE; + + if (ifp->if_agentids != NULL) { + for (index = 0; index < ifp->if_agentcount; index++) { + uuid_t *netagent_uuid = &(ifp->if_agentids[index]); + if (uuid_compare(*netagent_uuid, + remove_agent_uuid) == 0) { + uuid_clear(*netagent_uuid); + removed_agent_id = TRUE; + break; + } + } + } + if (removed_agent_id) { + netagent_post_updated_interfaces(remove_agent_uuid); + } + + return 0; +} + +int +if_delete_netagent(struct ifnet *ifp, uuid_t remove_agent_uuid) +{ + VERIFY(ifp != NULL); + + ifnet_lock_exclusive(ifp); + + int error = if_delete_netagent_locked(ifp, remove_agent_uuid); + + ifnet_lock_done(ifp); + + return error; +} + +boolean_t +if_check_netagent(struct ifnet *ifp, uuid_t find_agent_uuid) +{ + boolean_t found = FALSE; + + if (!ifp || uuid_is_null(find_agent_uuid)) { + return FALSE; + } + + ifnet_lock_shared(ifp); + + if (ifp->if_agentids != NULL) { + for (uint32_t index = 0; index < ifp->if_agentcount; index++) { + if (uuid_compare(ifp->if_agentids[index], find_agent_uuid) == 0) { + found = TRUE; + break; + } + } + } + + ifnet_lock_done(ifp); + + return found; +} + +static __attribute__((noinline)) int +ifioctl_netagent(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) +{ + struct if_agentidreq *ifar = (struct if_agentidreq *)(void *)data; + union { + struct if_agentidsreq32 s32; + struct if_agentidsreq64 s64; + } u; + int error = 0; + + VERIFY(ifp != NULL); + + /* Get an io ref count if the interface is attached */ + if (!ifnet_is_attached(ifp, 1)) { + return EOPNOTSUPP; + } + + if (cmd == SIOCAIFAGENTID || + cmd == SIOCDIFAGENTID) { + ifnet_lock_exclusive(ifp); + } else { + ifnet_lock_shared(ifp); + } + + switch (cmd) { + case SIOCAIFAGENTID: { /* struct if_agentidreq */ + // TODO: Use priv_check_cred() instead of root check + if ((error = proc_suser(p)) != 0) { + break; + } + error = if_add_netagent_locked(ifp, ifar->ifar_uuid); + break; + } + case SIOCDIFAGENTID: { /* struct if_agentidreq */ + // TODO: Use priv_check_cred() instead of root check + if ((error = proc_suser(p)) != 0) { + break; + } + error = if_delete_netagent_locked(ifp, ifar->ifar_uuid); + break; + } + case SIOCGIFAGENTIDS32: { /* struct if_agentidsreq32 */ + bcopy(data, &u.s32, sizeof(u.s32)); + error = ifioctl_getnetagents(ifp, &u.s32.ifar_count, + u.s32.ifar_uuids); + if (error == 0) { + bcopy(&u.s32, data, sizeof(u.s32)); + } + break; + } + case SIOCGIFAGENTIDS64: { /* struct if_agentidsreq64 */ + bcopy(data, &u.s64, sizeof(u.s64)); + error = ifioctl_getnetagents(ifp, &u.s64.ifar_count, + u.s64.ifar_uuids); + if (error == 0) { + bcopy(&u.s64, data, sizeof(u.s64)); + } + break; + } + default: + VERIFY(0); + /* NOTREACHED */ + } + + ifnet_lock_done(ifp); + ifnet_decr_iorefcnt(ifp); + + return error; +} + +void +ifnet_clear_netagent(uuid_t netagent_uuid) +{ + struct ifnet *ifp = NULL; + u_int32_t index = 0; + + ifnet_head_lock_shared(); + + TAILQ_FOREACH(ifp, &ifnet_head, if_link) { + ifnet_lock_shared(ifp); + if (ifp->if_agentids != NULL) { + for (index = 0; index < ifp->if_agentcount; index++) { + uuid_t *ifp_netagent_uuid = &(ifp->if_agentids[index]); + if (uuid_compare(*ifp_netagent_uuid, netagent_uuid) == 0) { + uuid_clear(*ifp_netagent_uuid); + } + } + } + ifnet_lock_done(ifp); + } + + ifnet_head_done(); +} + +void +ifnet_increment_generation(ifnet_t interface) +{ + OSIncrementAtomic(&interface->if_generation); +} + +u_int32_t +ifnet_get_generation(ifnet_t interface) +{ + return interface->if_generation; +} + +void +ifnet_remove_from_ordered_list(struct ifnet *ifp) +{ + ifnet_head_assert_exclusive(); + + // Remove from list + TAILQ_REMOVE(&ifnet_ordered_head, ifp, if_ordered_link); + ifp->if_ordered_link.tqe_next = NULL; + ifp->if_ordered_link.tqe_prev = NULL; + + // Update ordered count + VERIFY(if_ordered_count > 0); + if_ordered_count--; +} + +static int +ifnet_reset_order(u_int32_t *ordered_indices, u_int32_t count) +{ + struct ifnet *ifp = NULL; + int error = 0; + + ifnet_head_lock_exclusive(); + for (u_int32_t order_index = 0; order_index < count; order_index++) { + if (ordered_indices[order_index] == IFSCOPE_NONE || + ordered_indices[order_index] > (uint32_t)if_index) { + error = EINVAL; + ifnet_head_done(); + return error; + } + } + // Flush current ordered list + for (ifp = TAILQ_FIRST(&ifnet_ordered_head); ifp != NULL; + ifp = TAILQ_FIRST(&ifnet_ordered_head)) { + ifnet_lock_exclusive(ifp); + ifnet_remove_from_ordered_list(ifp); + ifnet_lock_done(ifp); + } + + VERIFY(if_ordered_count == 0); + + for (u_int32_t order_index = 0; order_index < count; order_index++) { + u_int32_t interface_index = ordered_indices[order_index]; + ifp = ifindex2ifnet[interface_index]; + if (ifp == NULL) { + continue; + } + ifnet_lock_exclusive(ifp); + TAILQ_INSERT_TAIL(&ifnet_ordered_head, ifp, if_ordered_link); + ifnet_lock_done(ifp); + if_ordered_count++; + } + + ifnet_head_done(); + + necp_update_all_clients(); + + return error; +} + +int +if_set_qosmarking_mode(struct ifnet *ifp, u_int32_t mode) +{ + int error = 0; + u_int32_t old_mode = ifp->if_qosmarking_mode; + + switch (mode) { + case IFRTYPE_QOSMARKING_MODE_NONE: + ifp->if_qosmarking_mode = IFRTYPE_QOSMARKING_MODE_NONE; + break; + case IFRTYPE_QOSMARKING_FASTLANE: + case IFRTYPE_QOSMARKING_RFC4594: + ifp->if_qosmarking_mode = mode; + break; + default: + error = EINVAL; + break; + } + if (error == 0 && old_mode != ifp->if_qosmarking_mode) { + dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_QOS_MODE_CHANGED, + NULL, 0); + } + return error; +} + +static __attribute__((noinline)) int +ifioctl_iforder(u_long cmd, caddr_t data) +{ + int error = 0; + u_int32_t *ordered_indices = NULL; + if (data == NULL) { + return EINVAL; + } + + switch (cmd) { + case SIOCSIFORDER: { /* struct if_order */ + struct if_order *ifo = (struct if_order *)(void *)data; + + if (ifo->ifo_count > (u_int32_t)if_index) { + error = EINVAL; + break; + } + + size_t length = (ifo->ifo_count * sizeof(u_int32_t)); + if (length > 0) { + if (ifo->ifo_ordered_indices == USER_ADDR_NULL) { + error = EINVAL; + break; + } + ordered_indices = _MALLOC(length, M_NECP, M_WAITOK); + if (ordered_indices == NULL) { + error = ENOMEM; + break; + } + + error = copyin(ifo->ifo_ordered_indices, + ordered_indices, length); + if (error != 0) { + break; + } + + /* ordered_indices should not contain duplicates */ + bool found_duplicate = FALSE; + for (uint32_t i = 0; i < (ifo->ifo_count - 1) && !found_duplicate; i++) { + for (uint32_t j = i + 1; j < ifo->ifo_count && !found_duplicate; j++) { + if (ordered_indices[j] == ordered_indices[i]) { + error = EINVAL; + found_duplicate = TRUE; + break; + } + } + } + if (found_duplicate) { + break; + } + + error = ifnet_reset_order(ordered_indices, ifo->ifo_count); + } else { + // Clear the list + error = ifnet_reset_order(NULL, 0); + } + break; + } + + default: { + VERIFY(0); + /* NOTREACHED */ + } + } + + if (ordered_indices != NULL) { + _FREE(ordered_indices, M_NECP); + } + + return error; +} + +static __attribute__((noinline)) int +ifioctl_networkid(struct ifnet *ifp, caddr_t data) +{ + struct if_netidreq *ifnetidr = (struct if_netidreq *)(void *)data; + int error = 0; + int len = ifnetidr->ifnetid_len; + + VERIFY(ifp != NULL); + + if (len > sizeof(ifnetidr->ifnetid)) { + error = EINVAL; + goto end; + } + + if (len == 0) { + bzero(&ifp->network_id, sizeof(ifp->network_id)); + } else if (len > sizeof(ifp->network_id)) { + error = EINVAL; + goto end; + } + + ifp->network_id_len = len; + bcopy(data, ifp->network_id, len); +end: + return error; +} + +static __attribute__((noinline)) int +ifioctl_netsignature(struct ifnet *ifp, u_long cmd, caddr_t data) +{ + struct if_nsreq *ifnsr = (struct if_nsreq *)(void *)data; + u_int16_t flags; + int error = 0; + + VERIFY(ifp != NULL); + + switch (cmd) { + case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ + if (ifnsr->ifnsr_len > sizeof(ifnsr->ifnsr_data)) { + error = EINVAL; + break; + } + bcopy(&ifnsr->ifnsr_flags, &flags, sizeof(flags)); + error = ifnet_set_netsignature(ifp, ifnsr->ifnsr_family, + ifnsr->ifnsr_len, flags, ifnsr->ifnsr_data); + break; + + case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ + ifnsr->ifnsr_len = sizeof(ifnsr->ifnsr_data); + error = ifnet_get_netsignature(ifp, ifnsr->ifnsr_family, + &ifnsr->ifnsr_len, &flags, ifnsr->ifnsr_data); + if (error == 0) { + bcopy(&flags, &ifnsr->ifnsr_flags, sizeof(flags)); + } else { + ifnsr->ifnsr_len = 0; } break; + + default: + VERIFY(0); + /* NOTREACHED */ } + return error; +} + +static __attribute__((noinline)) int +ifioctl_nat64prefix(struct ifnet *ifp, u_long cmd, caddr_t data) +{ + struct if_nat64req *ifnat64 = (struct if_nat64req *)(void *)data; + int error = 0; + + VERIFY(ifp != NULL); + + switch (cmd) { + case SIOCSIFNAT64PREFIX: /* struct if_nat64req */ + error = ifnet_set_nat64prefix(ifp, ifnat64->ifnat64_prefixes); + if (error != 0) { + ip6stat.ip6s_clat464_plat64_pfx_setfail++; + } + break; + + case SIOCGIFNAT64PREFIX: /* struct if_nat64req */ + error = ifnet_get_nat64prefix(ifp, ifnat64->ifnat64_prefixes); + if (error != 0) { + ip6stat.ip6s_clat464_plat64_pfx_getfail++; + } + break; + + default: + VERIFY(0); + /* NOTREACHED */ + } + + return error; +} + +static __attribute__((noinline)) int +ifioctl_clat46addr(struct ifnet *ifp, u_long cmd, caddr_t data) +{ + struct if_clat46req *ifclat46 = (struct if_clat46req *)(void *)data; + struct in6_ifaddr *ia6_clat = NULL; + int error = 0; + + VERIFY(ifp != NULL); + + switch (cmd) { + case SIOCGIFCLAT46ADDR: + ia6_clat = in6ifa_ifpwithflag(ifp, IN6_IFF_CLAT46); + if (ia6_clat == NULL) { + error = ENOENT; + break; + } + + bcopy(&ia6_clat->ia_addr.sin6_addr, &ifclat46->ifclat46_addr.v6_address, + sizeof(ifclat46->ifclat46_addr.v6_address)); + ifclat46->ifclat46_addr.v6_prefixlen = ia6_clat->ia_plen; + IFA_REMREF(&ia6_clat->ia_ifa); + break; + default: + VERIFY(0); + /* NOTREACHED */ + } + + return error; +} + + +static int +ifioctl_get_protolist(struct ifnet *ifp, u_int32_t * ret_count, + user_addr_t ifpl) +{ + u_int32_t actual_count; + u_int32_t count; + int error = 0; + u_int32_t *list = NULL; + + /* find out how many */ + count = if_get_protolist(ifp, NULL, 0); + if (ifpl == USER_ADDR_NULL) { + goto done; + } + + /* copy out how many there's space for */ + if (*ret_count < count) { + count = *ret_count; + } + if (count == 0) { + goto done; + } + list = _MALLOC(count * sizeof(*list), M_TEMP, M_WAITOK | M_ZERO); + if (list == NULL) { + error = ENOMEM; + goto done; + } + actual_count = if_get_protolist(ifp, list, count); + if (actual_count < count) { + count = actual_count; + } + if (count != 0) { + error = copyout((caddr_t)list, ifpl, count * sizeof(*list)); + } + +done: + if (list != NULL) { + if_free_protolist(list); + } + *ret_count = count; + return error; +} + +static __attribute__((noinline)) int +ifioctl_protolist(struct ifnet *ifp, u_long cmd, caddr_t data) +{ + int error = 0; + + switch (cmd) { + case SIOCGIFPROTOLIST32: { /* struct if_protolistreq32 */ + struct if_protolistreq32 ifpl; + + bcopy(data, &ifpl, sizeof(ifpl)); + if (ifpl.ifpl_reserved != 0) { + error = EINVAL; + break; + } + error = ifioctl_get_protolist(ifp, &ifpl.ifpl_count, + CAST_USER_ADDR_T(ifpl.ifpl_list)); + bcopy(&ifpl, data, sizeof(ifpl)); + break; + } + case SIOCGIFPROTOLIST64: { /* struct if_protolistreq64 */ + struct if_protolistreq64 ifpl; + + bcopy(data, &ifpl, sizeof(ifpl)); + if (ifpl.ifpl_reserved != 0) { + error = EINVAL; + break; + } + error = ifioctl_get_protolist(ifp, &ifpl.ifpl_count, + ifpl.ifpl_list); + bcopy(&ifpl, data, sizeof(ifpl)); + break; + } + default: + VERIFY(0); + /* NOTREACHED */ + } + + return error; +} + +/* + * List the ioctl()s we can perform on restricted INTCOPROC interfaces. + */ +static bool +ifioctl_restrict_intcoproc(unsigned long cmd, const char *ifname, + struct ifnet *ifp, struct proc *p) +{ + if (intcoproc_unrestricted == TRUE) { + return false; + } + if (proc_pid(p) == 0) { + return false; + } + if (ifname) { + ifp = ifunit(ifname); + } + if (ifp == NULL) { + return false; + } + if (!IFNET_IS_INTCOPROC(ifp)) { + return false; + } + switch (cmd) { + case SIOCGIFBRDADDR: + case SIOCGIFCONF32: + case SIOCGIFCONF64: + case SIOCGIFFLAGS: + case SIOCGIFEFLAGS: + case SIOCGIFCAP: + case SIOCGIFMETRIC: + case SIOCGIFMTU: + case SIOCGIFPHYS: + case SIOCGIFTYPE: + case SIOCGIFFUNCTIONALTYPE: + case SIOCGIFPSRCADDR: + case SIOCGIFPDSTADDR: + case SIOCGIFGENERIC: + case SIOCGIFDEVMTU: + case SIOCGIFVLAN: + case SIOCGIFBOND: + case SIOCGIFWAKEFLAGS: + case SIOCGIFGETRTREFCNT: + case SIOCGIFOPPORTUNISTIC: + case SIOCGIFLINKQUALITYMETRIC: + case SIOCGIFLOG: + case SIOCGIFDELEGATE: + case SIOCGIFEXPENSIVE: + case SIOCGIFINTERFACESTATE: + case SIOCGIFPROBECONNECTIVITY: + case SIOCGIFTIMESTAMPENABLED: + case SIOCGECNMODE: + case SIOCGQOSMARKINGMODE: + case SIOCGQOSMARKINGENABLED: + case SIOCGIFLOWINTERNET: + case SIOCGIFSTATUS: + case SIOCGIFMEDIA32: + case SIOCGIFMEDIA64: + case SIOCGIFXMEDIA32: + case SIOCGIFXMEDIA64: + case SIOCGIFDESC: + case SIOCGIFLINKPARAMS: + case SIOCGIFQUEUESTATS: + case SIOCGIFTHROTTLE: + case SIOCGIFAGENTIDS32: + case SIOCGIFAGENTIDS64: + case SIOCGIFNETSIGNATURE: + case SIOCGIFINFO_IN6: + case SIOCGIFAFLAG_IN6: + case SIOCGNBRINFO_IN6: + case SIOCGIFALIFETIME_IN6: + case SIOCGIFNETMASK_IN6: + case SIOCGIFPROTOLIST32: + case SIOCGIFPROTOLIST64: + case SIOCGIFXFLAGS: + return false; default: - VERIFY(0); - /* NOTREACHED */ +#if (DEBUG || DEVELOPMENT) + printf("%s: cmd 0x%lx not allowed (pid %u)\n", + __func__, cmd, proc_pid(p)); +#endif + return true; } - - return (error); + return false; } +/* + * Given a media word, return one suitable for an application + * using the original encoding. + */ static int -ifioctl_getnetagents(struct ifnet *ifp, u_int32_t *count, user_addr_t uuid_p) +compat_media(int media) { - int error = 0; - int index = 0; - u_int32_t valid_netagent_count = 0; - *count = 0; - for (index = 0; index < IF_MAXAGENTS; index++) { - uuid_t *netagent_uuid = &(ifp->if_agentids[index]); - if (!uuid_is_null(*netagent_uuid)) { - if (uuid_p != USER_ADDR_NULL) { - if ((error = copyout(netagent_uuid, - uuid_p + sizeof(uuid_t) * valid_netagent_count, - sizeof(uuid_t))) != 0) { - return (error); - } - } - valid_netagent_count++; - } + if (IFM_TYPE(media) == IFM_ETHER && IFM_SUBTYPE(media) > IFM_OTHER) { + media &= ~IFM_TMASK; + media |= IFM_OTHER; } - *count = valid_netagent_count; - - return (0); + return media; } -static __attribute__((noinline)) int -ifioctl_netagent(struct ifnet *ifp, u_long cmd, caddr_t data, struct proc *p) +static int +compat_ifmu_ulist(struct ifnet *ifp, u_long cmd, void *data) { - struct if_agentidreq *ifar = (struct if_agentidreq *)(void *)data; - union { - struct if_agentidsreq32 s32; - struct if_agentidsreq64 s64; - } u; + struct ifmediareq *ifmr = (struct ifmediareq *)data; + user_addr_t user_addr; + int i; + int *media_list = NULL; int error = 0; - int index = 0; + bool list_modified = false; - VERIFY(ifp != NULL); + user_addr = (cmd == SIOCGIFMEDIA64) ? + ((struct ifmediareq64 *)ifmr)->ifmu_ulist : + CAST_USER_ADDR_T(((struct ifmediareq32 *)ifmr)->ifmu_ulist); + if (user_addr == USER_ADDR_NULL || ifmr->ifm_count == 0) { + return 0; + } + MALLOC(media_list, int *, ifmr->ifm_count * sizeof(int), + M_TEMP, M_WAITOK | M_ZERO); + if (media_list == NULL) { + os_log_error(OS_LOG_DEFAULT, + "%s: %s MALLOC() failed", + __func__, ifp->if_xname); + error = ENOMEM; + goto done; + } + error = copyin(user_addr, media_list, ifmr->ifm_count * sizeof(int)); + if (error != 0) { + os_log_error(OS_LOG_DEFAULT, + "%s: %s copyin() error %d", + __func__, ifp->if_xname, error); + goto done; + } + for (i = 0; i < ifmr->ifm_count; i++) { + int old_media, new_media; - switch (cmd) { - case SIOCAIFAGENTID: { /* struct if_agentidreq */ - uuid_t *first_empty_slot = NULL; - // TODO: Use priv_check_cred() instead of root check - if ((error = proc_suser(p)) != 0) { - break; - } - for (index = 0; index < IF_MAXAGENTS; index++) { - uuid_t *netagent_uuid = &(ifp->if_agentids[index]); - if (uuid_compare(*netagent_uuid, ifar->ifar_uuid) == 0) { - /* Already present, ignore */ - break; - } - if (first_empty_slot == NULL && - uuid_is_null(*netagent_uuid)) { - first_empty_slot = netagent_uuid; - } - } - if (first_empty_slot == NULL) { - error = ENOMEM; /* No empty slot for a netagent UUID, bail */ - break; - } - uuid_copy(*first_empty_slot, ifar->ifar_uuid); - netagent_post_updated_interfaces(ifar->ifar_uuid); - break; - } - case SIOCDIFAGENTID: { /* struct if_agentidreq */ - bool removed_agent_id = FALSE; - // TODO: Use priv_check_cred() instead of root check - if ((error = proc_suser(p)) != 0) { - break; - } - for (index = 0; index < IF_MAXAGENTS; index++) { - uuid_t *netagent_uuid = &(ifp->if_agentids[index]); - if (uuid_compare(*netagent_uuid, ifar->ifar_uuid) == 0) { - uuid_clear(*netagent_uuid); - removed_agent_id = TRUE; - break; - } - } - if (removed_agent_id) { - netagent_post_updated_interfaces(ifar->ifar_uuid); - } - break; + old_media = media_list[i]; + + new_media = compat_media(old_media); + if (new_media == old_media) { + continue; } - case SIOCGIFAGENTIDS32: { /* struct if_agentidsreq32 */ - bcopy(data, &u.s32, sizeof(u.s32)); - error = ifioctl_getnetagents(ifp, &u.s32.ifar_count, u.s32.ifar_uuids); - if (error == 0) { - bcopy(&u.s32, data, sizeof(u.s32)); - } - break; + if (if_verbose != 0) { + os_log_info(OS_LOG_DEFAULT, + "%s: %s converted extended media %08x to compat media %08x", + __func__, ifp->if_xname, old_media, new_media); } - case SIOCGIFAGENTIDS64: { /* struct if_agentidsreq64 */ - bcopy(data, &u.s64, sizeof(u.s64)); - error = ifioctl_getnetagents(ifp, &u.s64.ifar_count, u.s64.ifar_uuids); - if (error == 0) { - bcopy(&u.s64, data, sizeof(u.s64)); - } - break; + media_list[i] = new_media; + list_modified = true; + } + if (list_modified) { + error = copyout(media_list, user_addr, ifmr->ifm_count * sizeof(int)); + if (error != 0) { + os_log_error(OS_LOG_DEFAULT, + "%s: %s copyout() error %d", + __func__, ifp->if_xname, error); + goto done; } - default: - VERIFY(0); - /* NOTREACHED */ } - - return (error); +done: + if (media_list != NULL) { + FREE(media_list, M_TEMP); + } + return error; } -void -ifnet_clear_netagent(uuid_t netagent_uuid) +static int +compat_ifmediareq(struct ifnet *ifp, u_long cmd, void *data) { - struct ifnet *ifp = NULL; - int index = 0; - bool removed_agent_id = FALSE; + struct ifmediareq *ifmr = (struct ifmediareq *)data; + int error; - ifnet_head_lock_shared(); + ifmr->ifm_active = compat_media(ifmr->ifm_active); + ifmr->ifm_current = compat_media(ifmr->ifm_current); - TAILQ_FOREACH(ifp, &ifnet_head, if_link) { - for (index = 0; index < IF_MAXAGENTS; index++) { - uuid_t *ifp_netagent_uuid = &(ifp->if_agentids[index]); - if (uuid_compare(*ifp_netagent_uuid, netagent_uuid) == 0) { - uuid_clear(*ifp_netagent_uuid); - removed_agent_id = TRUE; - } - } - } + error = compat_ifmu_ulist(ifp, cmd, data); - ifnet_head_done(); + return error; } -static __attribute__((noinline)) int -ifioctl_netsignature(struct ifnet *ifp, u_long cmd, caddr_t data) +static int +ifioctl_get_media(struct ifnet *ifp, struct socket *so, u_long cmd, caddr_t data) { - struct if_nsreq *ifnsr = (struct if_nsreq *)(void *)data; - u_int16_t flags; int error = 0; - VERIFY(ifp != NULL); - + /* + * An ifnet must not implement SIOCGIFXMEDIA as it gets the extended + * media subtypes macros from + */ switch (cmd) { - case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ - if (ifnsr->ifnsr_len > sizeof (ifnsr->ifnsr_data)) { - error = EINVAL; - break; - } - bcopy(&ifnsr->ifnsr_flags, &flags, sizeof (flags)); - error = ifnet_set_netsignature(ifp, ifnsr->ifnsr_family, - ifnsr->ifnsr_len, flags, ifnsr->ifnsr_data); + case SIOCGIFMEDIA32: + case SIOCGIFXMEDIA32: + error = ifnet_ioctl(ifp, SOCK_DOM(so), SIOCGIFMEDIA32, data); break; - - case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ - ifnsr->ifnsr_len = sizeof (ifnsr->ifnsr_data); - error = ifnet_get_netsignature(ifp, ifnsr->ifnsr_family, - &ifnsr->ifnsr_len, &flags, ifnsr->ifnsr_data); - if (error == 0) - bcopy(&flags, &ifnsr->ifnsr_flags, sizeof (flags)); - else - ifnsr->ifnsr_len = 0; + case SIOCGIFMEDIA64: + case SIOCGIFXMEDIA64: + error = ifnet_ioctl(ifp, SOCK_DOM(so), SIOCGIFMEDIA64, data); break; - - default: - VERIFY(0); - /* NOTREACHED */ } - - return (error); + if (if_verbose != 0 && error != 0) { + os_log(OS_LOG_DEFAULT, "%s: first ifnet_ioctl(%s, %08lx) error %d", + __func__, ifp->if_xname, cmd, error); + } + if (error == 0 && (cmd == SIOCGIFMEDIA32 || cmd == SIOCGIFMEDIA64)) { + error = compat_ifmediareq(ifp, cmd, data); + } + return error; } - /* * Interface ioctls. * @@ -1905,104 +2858,134 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p) struct ifstat *ifs = NULL; int error = 0; - bzero(ifname, sizeof (ifname)); + bzero(ifname, sizeof(ifname)); /* * ioctls which don't require ifp, or ifreq ioctls */ switch (cmd) { - case OSIOCGIFCONF32: /* struct ifconf32 */ - case SIOCGIFCONF32: /* struct ifconf32 */ - case SIOCGIFCONF64: /* struct ifconf64 */ - case OSIOCGIFCONF64: /* struct ifconf64 */ + case OSIOCGIFCONF32: /* struct ifconf32 */ + case SIOCGIFCONF32: /* struct ifconf32 */ + case SIOCGIFCONF64: /* struct ifconf64 */ + case OSIOCGIFCONF64: /* struct ifconf64 */ error = ifioctl_ifconf(cmd, data); goto done; - case SIOCIFGCLONERS32: /* struct if_clonereq32 */ - case SIOCIFGCLONERS64: /* struct if_clonereq64 */ + case SIOCIFGCLONERS32: /* struct if_clonereq32 */ + case SIOCIFGCLONERS64: /* struct if_clonereq64 */ error = ifioctl_ifclone(cmd, data); goto done; - case SIOCGIFAGENTDATA32: /* struct netagent_req32 */ - case SIOCGIFAGENTDATA64: /* struct netagent_req64 */ + case SIOCGIFAGENTDATA32: /* struct netagent_req32 */ + case SIOCGIFAGENTDATA64: /* struct netagent_req64 */ + case SIOCGIFAGENTLIST32: /* struct netagentlist_req32 */ + case SIOCGIFAGENTLIST64: /* struct netagentlist_req64 */ error = netagent_ioctl(cmd, data); goto done; - case SIOCSIFDSTADDR: /* struct ifreq */ - case SIOCSIFADDR: /* struct ifreq */ - case SIOCSIFBRDADDR: /* struct ifreq */ - case SIOCSIFNETMASK: /* struct ifreq */ - case OSIOCGIFADDR: /* struct ifreq */ - case OSIOCGIFDSTADDR: /* struct ifreq */ - case OSIOCGIFBRDADDR: /* struct ifreq */ - case OSIOCGIFNETMASK: /* struct ifreq */ - case SIOCSIFKPI: /* struct ifreq */ + case SIOCSIFORDER: /* struct if_order */ + error = ifioctl_iforder(cmd, data); + goto done; + + case SIOCSIFDSTADDR: /* struct ifreq */ + case SIOCSIFADDR: /* struct ifreq */ + case SIOCSIFBRDADDR: /* struct ifreq */ + case SIOCSIFNETMASK: /* struct ifreq */ + case OSIOCGIFADDR: /* struct ifreq */ + case OSIOCGIFDSTADDR: /* struct ifreq */ + case OSIOCGIFBRDADDR: /* struct ifreq */ + case OSIOCGIFNETMASK: /* struct ifreq */ + case SIOCSIFKPI: /* struct ifreq */ if (so->so_proto == NULL) { error = EOPNOTSUPP; goto done; } - /* FALLTHRU */ - case SIOCIFCREATE: /* struct ifreq */ - case SIOCIFCREATE2: /* struct ifreq */ - case SIOCIFDESTROY: /* struct ifreq */ - case SIOCGIFFLAGS: /* struct ifreq */ - case SIOCGIFEFLAGS: /* struct ifreq */ - case SIOCGIFCAP: /* struct ifreq */ -#if CONFIG_MACF_NET - case SIOCGIFMAC: /* struct ifreq */ - case SIOCSIFMAC: /* struct ifreq */ -#endif /* CONFIG_MACF_NET */ - case SIOCGIFMETRIC: /* struct ifreq */ - case SIOCGIFMTU: /* struct ifreq */ - case SIOCGIFPHYS: /* struct ifreq */ - case SIOCSIFFLAGS: /* struct ifreq */ - case SIOCSIFCAP: /* struct ifreq */ - case SIOCSIFMETRIC: /* struct ifreq */ - case SIOCSIFPHYS: /* struct ifreq */ - case SIOCSIFMTU: /* struct ifreq */ - case SIOCADDMULTI: /* struct ifreq */ - case SIOCDELMULTI: /* struct ifreq */ - case SIOCDIFPHYADDR: /* struct ifreq */ - case SIOCSIFMEDIA: /* struct ifreq */ - case SIOCSIFGENERIC: /* struct ifreq */ - case SIOCSIFLLADDR: /* struct ifreq */ - case SIOCSIFALTMTU: /* struct ifreq */ - case SIOCSIFVLAN: /* struct ifreq */ - case SIOCSIFBOND: /* struct ifreq */ - case SIOCGIFLLADDR: /* struct ifreq */ - case SIOCGIFTYPE: /* struct ifreq */ - case SIOCGIFFUNCTIONALTYPE: /* struct ifreq */ - case SIOCGIFPSRCADDR: /* struct ifreq */ - case SIOCGIFPDSTADDR: /* struct ifreq */ - case SIOCGIFGENERIC: /* struct ifreq */ - case SIOCGIFDEVMTU: /* struct ifreq */ - case SIOCGIFVLAN: /* struct ifreq */ - case SIOCGIFBOND: /* struct ifreq */ - case SIOCGIFWAKEFLAGS: /* struct ifreq */ - case SIOCGIFGETRTREFCNT: /* struct ifreq */ - case SIOCSIFOPPORTUNISTIC: /* struct ifreq */ - case SIOCGIFOPPORTUNISTIC: /* struct ifreq */ - case SIOCGIFLINKQUALITYMETRIC: /* struct ifreq */ - case SIOCSIFLOG: /* struct ifreq */ - case SIOCGIFLOG: /* struct ifreq */ - case SIOCGIFDELEGATE: /* struct ifreq */ - case SIOCGIFEXPENSIVE: /* struct ifreq */ - case SIOCSIFEXPENSIVE: /* struct ifreq */ - case SIOCSIF2KCL: /* struct ifreq */ - case SIOCGIF2KCL: /* struct ifreq */ - case SIOCSIFINTERFACESTATE: /* struct ifreq */ - case SIOCGIFINTERFACESTATE: /* struct ifreq */ - case SIOCSIFPROBECONNECTIVITY: /* struct ifreq */ - case SIOCGIFPROBECONNECTIVITY: /* struct ifreq */ - case SIOCGSTARTDELAY: /* struct ifreq */ - case SIOCGECNMODE: /* struct ifreq */ - case SIOCSECNMODE: { /* struct ifreq */ + OS_FALLTHROUGH; + case SIOCIFCREATE: /* struct ifreq */ + case SIOCIFCREATE2: /* struct ifreq */ + case SIOCIFDESTROY: /* struct ifreq */ + case SIOCGIFFLAGS: /* struct ifreq */ + case SIOCGIFEFLAGS: /* struct ifreq */ + case SIOCGIFCAP: /* struct ifreq */ + case SIOCGIFMETRIC: /* struct ifreq */ + case SIOCGIFMTU: /* struct ifreq */ + case SIOCGIFPHYS: /* struct ifreq */ + case SIOCSIFFLAGS: /* struct ifreq */ + case SIOCSIFCAP: /* struct ifreq */ + case SIOCSIFMETRIC: /* struct ifreq */ + case SIOCSIFPHYS: /* struct ifreq */ + case SIOCSIFMTU: /* struct ifreq */ + case SIOCADDMULTI: /* struct ifreq */ + case SIOCDELMULTI: /* struct ifreq */ + case SIOCDIFPHYADDR: /* struct ifreq */ + case SIOCSIFMEDIA: /* struct ifreq */ + case SIOCSIFGENERIC: /* struct ifreq */ + case SIOCSIFLLADDR: /* struct ifreq */ + case SIOCSIFALTMTU: /* struct ifreq */ + case SIOCSIFVLAN: /* struct ifreq */ + case SIOCSIFBOND: /* struct ifreq */ + case SIOCGIFLLADDR: /* struct ifreq */ + case SIOCGIFTYPE: /* struct ifreq */ + case SIOCGIFFUNCTIONALTYPE: /* struct ifreq */ + case SIOCGIFPSRCADDR: /* struct ifreq */ + case SIOCGIFPDSTADDR: /* struct ifreq */ + case SIOCGIFGENERIC: /* struct ifreq */ + case SIOCGIFDEVMTU: /* struct ifreq */ + case SIOCGIFVLAN: /* struct ifreq */ + case SIOCGIFBOND: /* struct ifreq */ + case SIOCGIFWAKEFLAGS: /* struct ifreq */ + case SIOCGIFGETRTREFCNT: /* struct ifreq */ + case SIOCSIFOPPORTUNISTIC: /* struct ifreq */ + case SIOCGIFOPPORTUNISTIC: /* struct ifreq */ + case SIOCGIFLINKQUALITYMETRIC: /* struct ifreq */ + case SIOCSIFLOG: /* struct ifreq */ + case SIOCGIFLOG: /* struct ifreq */ + case SIOCGIFDELEGATE: /* struct ifreq */ + case SIOCGIFEXPENSIVE: /* struct ifreq */ + case SIOCSIFEXPENSIVE: /* struct ifreq */ + case SIOCSIF2KCL: /* struct ifreq */ + case SIOCGIF2KCL: /* struct ifreq */ + case SIOCSIFINTERFACESTATE: /* struct ifreq */ + case SIOCGIFINTERFACESTATE: /* struct ifreq */ + case SIOCSIFPROBECONNECTIVITY: /* struct ifreq */ + case SIOCGIFPROBECONNECTIVITY: /* struct ifreq */ + case SIOCGSTARTDELAY: /* struct ifreq */ + case SIOCSIFTIMESTAMPENABLE: /* struct ifreq */ + case SIOCSIFTIMESTAMPDISABLE: /* struct ifreq */ + case SIOCGIFTIMESTAMPENABLED: /* struct ifreq */ +#if (DEBUG || DEVELOPMENT) + case SIOCSIFDISABLEOUTPUT: /* struct ifreq */ +#endif /* (DEBUG || DEVELOPMENT) */ + case SIOCGECNMODE: /* struct ifreq */ + case SIOCSECNMODE: + case SIOCSQOSMARKINGMODE: /* struct ifreq */ + case SIOCSQOSMARKINGENABLED: /* struct ifreq */ + case SIOCGQOSMARKINGMODE: /* struct ifreq */ + case SIOCGQOSMARKINGENABLED: /* struct ifreq */ + case SIOCSIFLOWINTERNET: /* struct ifreq */ + case SIOCGIFLOWINTERNET: /* struct ifreq */ + case SIOCGIFLOWPOWER: /* struct ifreq */ + case SIOCSIFLOWPOWER: /* struct ifreq */ + case SIOCSIF6LOWPAN: /* struct ifreq */ + case SIOCGIF6LOWPAN: /* struct ifreq */ + case SIOCGIFMPKLOG: /* struct ifreq */ + case SIOCSIFMPKLOG: /* struct ifreq */ + case SIOCGIFCONSTRAINED: /* struct ifreq */ + case SIOCSIFCONSTRAINED: /* struct ifreq */ + case SIOCGIFXFLAGS: /* struct ifreq */ + case SIOCGIFNOACKPRIO: /* struct ifreq */ + case SIOCSIFNOACKPRIO: /* struct ifreq */ + { /* struct ifreq */ struct ifreq ifr; - bcopy(data, &ifr, sizeof (ifr)); + bcopy(data, &ifr, sizeof(ifr)); ifr.ifr_name[IFNAMSIZ - 1] = '\0'; bcopy(&ifr.ifr_name, ifname, IFNAMSIZ); + if (ifioctl_restrict_intcoproc(cmd, ifname, NULL, p) == true) { + error = EPERM; + goto done; + } error = ifioctl_ifreq(so, cmd, &ifr, p); - bcopy(&ifr, data, sizeof (ifr)); + bcopy(&ifr, data, sizeof(ifr)); goto done; } } @@ -2013,94 +2996,105 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p) */ dlil_if_lock(); switch (cmd) { - case SIOCSIFPHYADDR: /* struct {if,in_}aliasreq */ + case SIOCSIFPHYADDR: /* struct {if,in_}aliasreq */ bcopy(((struct in_aliasreq *)(void *)data)->ifra_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; -#if INET6 - case SIOCSIFPHYADDR_IN6_32: /* struct in6_aliasreq_32 */ + case SIOCSIFPHYADDR_IN6_32: /* struct in6_aliasreq_32 */ bcopy(((struct in6_aliasreq_32 *)(void *)data)->ifra_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; - case SIOCSIFPHYADDR_IN6_64: /* struct in6_aliasreq_64 */ + case SIOCSIFPHYADDR_IN6_64: /* struct in6_aliasreq_64 */ bcopy(((struct in6_aliasreq_64 *)(void *)data)->ifra_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; -#endif /* INET6 */ - case SIOCGIFSTATUS: /* struct ifstat */ - ifs = _MALLOC(sizeof (*ifs), M_DEVBUF, M_WAITOK); + case SIOCGIFSTATUS: /* struct ifstat */ + ifs = _MALLOC(sizeof(*ifs), M_DEVBUF, M_WAITOK); if (ifs == NULL) { error = ENOMEM; dlil_if_unlock(); goto done; } - bcopy(data, ifs, sizeof (*ifs)); + bcopy(data, ifs, sizeof(*ifs)); ifs->ifs_name[IFNAMSIZ - 1] = '\0'; bcopy(ifs->ifs_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; - case SIOCGIFMEDIA32: /* struct ifmediareq32 */ + case SIOCGIFMEDIA32: /* struct ifmediareq32 */ + case SIOCGIFXMEDIA32: /* struct ifmediareq32 */ bcopy(((struct ifmediareq32 *)(void *)data)->ifm_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; - case SIOCGIFMEDIA64: /* struct ifmediareq64 */ + case SIOCGIFMEDIA64: /* struct ifmediareq64 */ + case SIOCGIFXMEDIA64: /* struct ifmediareq64 */ bcopy(((struct ifmediareq64 *)(void *)data)->ifm_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; - case SIOCSIFDESC: /* struct if_descreq */ - case SIOCGIFDESC: /* struct if_descreq */ + case SIOCSIFDESC: /* struct if_descreq */ + case SIOCGIFDESC: /* struct if_descreq */ bcopy(((struct if_descreq *)(void *)data)->ifdr_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; - case SIOCSIFLINKPARAMS: /* struct if_linkparamsreq */ - case SIOCGIFLINKPARAMS: /* struct if_linkparamsreq */ + case SIOCSIFLINKPARAMS: /* struct if_linkparamsreq */ + case SIOCGIFLINKPARAMS: /* struct if_linkparamsreq */ bcopy(((struct if_linkparamsreq *)(void *)data)->iflpr_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; - case SIOCGIFQUEUESTATS: /* struct if_qstatsreq */ + case SIOCGIFQUEUESTATS: /* struct if_qstatsreq */ bcopy(((struct if_qstatsreq *)(void *)data)->ifqr_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; - case SIOCSIFTHROTTLE: /* struct if_throttlereq */ - case SIOCGIFTHROTTLE: /* struct if_throttlereq */ + case SIOCSIFTHROTTLE: /* struct if_throttlereq */ + case SIOCGIFTHROTTLE: /* struct if_throttlereq */ bcopy(((struct if_throttlereq *)(void *)data)->ifthr_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; - case SIOCAIFAGENTID: /* struct if_agentidreq */ - case SIOCDIFAGENTID: /* struct if_agentidreq */ - case SIOCGIFAGENTIDS32: /* struct if_agentidsreq32 */ - case SIOCGIFAGENTIDS64: /* struct if_agentidsreq64 */ + case SIOCAIFAGENTID: /* struct if_agentidreq */ + case SIOCDIFAGENTID: /* struct if_agentidreq */ + case SIOCGIFAGENTIDS32: /* struct if_agentidsreq32 */ + case SIOCGIFAGENTIDS64: /* struct if_agentidsreq64 */ bcopy(((struct if_agentidreq *)(void *)data)->ifar_name, - ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifname, IFNAMSIZ); + ifp = ifunit_ref(ifname); break; - case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ - case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ + case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ + case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ bcopy(((struct if_nsreq *)(void *)data)->ifnsr_name, - ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifname, IFNAMSIZ); + ifp = ifunit_ref(ifname); break; + case SIOCSIFNETWORKID: /* struct if_netidreq */ + bcopy(((struct if_netidreq *)(void *)data)->ifnetid_name, + ifname, IFNAMSIZ); + ifp = ifunit_ref(ifname); + break; + case SIOCGIFPROTOLIST32: /* struct if_protolistreq32 */ + case SIOCGIFPROTOLIST64: /* struct if_protolistreq64 */ + bcopy(((struct if_protolistreq *)(void *)data)->ifpl_name, + ifname, IFNAMSIZ); + ifp = ifunit_ref(ifname); + break; default: /* * This is a bad assumption, but the code seems to @@ -2108,7 +3102,7 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p) */ bcopy(((struct ifreq *)(void *)data)->ifr_name, ifname, IFNAMSIZ); - ifp = ifunit(ifname); + ifp = ifunit_ref(ifname); break; } dlil_if_unlock(); @@ -2118,68 +3112,91 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p) goto done; } + if (ifioctl_restrict_intcoproc(cmd, NULL, ifp, p) == true) { + error = EPERM; + goto done; + } switch (cmd) { - case SIOCSIFPHYADDR: /* struct {if,in_}aliasreq */ -#if INET6 - case SIOCSIFPHYADDR_IN6_32: /* struct in6_aliasreq_32 */ - case SIOCSIFPHYADDR_IN6_64: /* struct in6_aliasreq_64 */ -#endif /* INET6 */ + case SIOCSIFPHYADDR: /* struct {if,in_}aliasreq */ + case SIOCSIFPHYADDR_IN6_32: /* struct in6_aliasreq_32 */ + case SIOCSIFPHYADDR_IN6_64: /* struct in6_aliasreq_64 */ error = proc_suser(p); - if (error != 0) + if (error != 0) { break; + } error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, data); - if (error != 0) + if (error != 0) { break; + } ifnet_touch_lastchange(ifp); break; - case SIOCGIFSTATUS: /* struct ifstat */ + case SIOCGIFSTATUS: /* struct ifstat */ VERIFY(ifs != NULL); ifs->ascii[0] = '\0'; error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifs); - bcopy(ifs, data, sizeof (*ifs)); + bcopy(ifs, data, sizeof(*ifs)); break; - case SIOCGIFMEDIA32: /* struct ifmediareq32 */ - case SIOCGIFMEDIA64: /* struct ifmediareq64 */ - error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, data); + case SIOCGIFMEDIA32: /* struct ifmediareq32 */ + case SIOCGIFMEDIA64: /* struct ifmediareq64 */ + case SIOCGIFXMEDIA32: /* struct ifmediareq32 */ + case SIOCGIFXMEDIA64: /* struct ifmediareq64 */ + error = ifioctl_get_media(ifp, so, cmd, data); break; - case SIOCSIFDESC: /* struct if_descreq */ - case SIOCGIFDESC: /* struct if_descreq */ + case SIOCSIFDESC: /* struct if_descreq */ + case SIOCGIFDESC: /* struct if_descreq */ error = ifioctl_ifdesc(ifp, cmd, data, p); break; - case SIOCSIFLINKPARAMS: /* struct if_linkparamsreq */ - case SIOCGIFLINKPARAMS: /* struct if_linkparamsreq */ + case SIOCSIFLINKPARAMS: /* struct if_linkparamsreq */ + case SIOCGIFLINKPARAMS: /* struct if_linkparamsreq */ error = ifioctl_linkparams(ifp, cmd, data, p); break; - case SIOCGIFQUEUESTATS: /* struct if_qstatsreq */ + case SIOCGIFQUEUESTATS: /* struct if_qstatsreq */ error = ifioctl_qstats(ifp, cmd, data); break; - case SIOCSIFTHROTTLE: /* struct if_throttlereq */ - case SIOCGIFTHROTTLE: /* struct if_throttlereq */ + case SIOCSIFTHROTTLE: /* struct if_throttlereq */ + case SIOCGIFTHROTTLE: /* struct if_throttlereq */ error = ifioctl_throttle(ifp, cmd, data, p); break; - case SIOCAIFAGENTID: /* struct if_agentidreq */ - case SIOCDIFAGENTID: /* struct if_agentidreq */ - case SIOCGIFAGENTIDS32: /* struct if_agentidsreq32 */ - case SIOCGIFAGENTIDS64: /* struct if_agentidsreq64 */ + case SIOCAIFAGENTID: /* struct if_agentidreq */ + case SIOCDIFAGENTID: /* struct if_agentidreq */ + case SIOCGIFAGENTIDS32: /* struct if_agentidsreq32 */ + case SIOCGIFAGENTIDS64: /* struct if_agentidsreq64 */ error = ifioctl_netagent(ifp, cmd, data, p); break; - case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ - case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ + case SIOCSIFNETSIGNATURE: /* struct if_nsreq */ + case SIOCGIFNETSIGNATURE: /* struct if_nsreq */ error = ifioctl_netsignature(ifp, cmd, data); break; + case SIOCSIFNETWORKID: /* struct if_netidreq */ + error = ifioctl_networkid(ifp, data); + break; + case SIOCSIFNAT64PREFIX: /* struct if_nat64req */ + case SIOCGIFNAT64PREFIX: /* struct if_nat64req */ + error = ifioctl_nat64prefix(ifp, cmd, data); + break; + + case SIOCGIFCLAT46ADDR: /* struct if_clat46req */ + error = ifioctl_clat46addr(ifp, cmd, data); + break; + + case SIOCGIFPROTOLIST32: /* struct if_protolistreq32 */ + case SIOCGIFPROTOLIST64: /* struct if_protolistreq64 */ + error = ifioctl_protolist(ifp, cmd, data); + break; + default: if (so->so_proto == NULL) { error = EOPNOTSUPP; @@ -2191,23 +3208,28 @@ ifioctl(struct socket *so, u_long cmd, caddr_t data, struct proc *p) data, ifp, p)); socket_unlock(so, 1); - if (error == EOPNOTSUPP || error == ENOTSUP) { + // Don't allow to call SIOCAIFADDR and SIOCDIFADDR with + // ifreq as the code expects ifaddr + if ((error == EOPNOTSUPP || error == ENOTSUP) && + !(cmd == SIOCAIFADDR || cmd == SIOCDIFADDR)) { error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, data); } break; } done: - if (ifs != NULL) + if (ifs != NULL) { _FREE(ifs, M_DEVBUF); + } if (if_verbose) { - if (ifname[0] == '\0') - (void) snprintf(ifname, sizeof (ifname), "%s", + if (ifname[0] == '\0') { + (void) snprintf(ifname, sizeof(ifname), "%s", "NULL"); - else if (ifp != NULL) - (void) snprintf(ifname, sizeof (ifname), "%s", + } else if (ifp != NULL) { + (void) snprintf(ifname, sizeof(ifname), "%s", if_name(ifp)); + } if (error != 0) { printf("%s[%s,%d]: ifp %s cmd 0x%08lx (%c%c [%lu] " @@ -2226,7 +3248,10 @@ done: } } - return (error); + if (ifp != NULL) { + ifnet_decr_iorefcnt(ifp); + } + return error; } static __attribute__((noinline)) int @@ -2238,22 +3263,24 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) struct kev_msg ev_msg; struct net_event_data ev_data; - bzero(&ev_data, sizeof (struct net_event_data)); - bzero(&ev_msg, sizeof (struct kev_msg)); + bzero(&ev_data, sizeof(struct net_event_data)); + bzero(&ev_msg, sizeof(struct kev_msg)); switch (cmd) { case SIOCIFCREATE: case SIOCIFCREATE2: - error = proc_suser(p); - if (error) - return (error); - return (if_clone_create(ifr->ifr_name, sizeof(ifr->ifr_name), - cmd == SIOCIFCREATE2 ? ifr->ifr_data : NULL)); + error = proc_suser(p); + if (error) { + return error; + } + return if_clone_create(ifr->ifr_name, sizeof(ifr->ifr_name), + cmd == SIOCIFCREATE2 ? ifr->ifr_data : NULL); case SIOCIFDESTROY: error = proc_suser(p); - if (error) - return (error); - return (if_clone_destroy(ifr->ifr_name)); + if (error) { + return error; + } + return if_clone_destroy(ifr->ifr_name); } /* @@ -2264,8 +3291,9 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) ifp = ifunit(ifr->ifr_name); dlil_if_unlock(); - if (ifp == NULL) - return (ENXIO); + if (ifp == NULL) { + return ENXIO; + } switch (cmd) { case SIOCGIFFLAGS: @@ -2280,6 +3308,12 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) ifnet_lock_done(ifp); break; + case SIOCGIFXFLAGS: + ifnet_lock_shared(ifp); + ifr->ifr_xflags = ifp->if_xflags; + ifnet_lock_done(ifp); + break; + case SIOCGIFCAP: ifnet_lock_shared(ifp); ifr->ifr_reqcap = ifp->if_capabilities; @@ -2287,16 +3321,6 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) ifnet_lock_done(ifp); break; -#if CONFIG_MACF_NET - case SIOCGIFMAC: - error = mac_ifnet_label_get(kauth_cred_get(), ifr, ifp); - break; - - case SIOCSIFMAC: - error = mac_ifnet_label_set(kauth_cred_get(), ifr, ifp); - break; -#endif /* CONFIG_MACF_NET */ - case SIOCGIFMETRIC: ifnet_lock_shared(ifp); ifr->ifr_metric = ifp->if_metric; @@ -2317,8 +3341,9 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) case SIOCSIFFLAGS: error = proc_suser(p); - if (error != 0) + if (error != 0) { break; + } (void) ifnet_set_flags(ifp, ifr->ifr_flags, (u_int16_t)~IFF_CANTCHANGE); @@ -2333,26 +3358,16 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) * Send the event even upon error from the driver because * we changed the flags. */ - ev_msg.vendor_code = KEV_VENDOR_APPLE; - ev_msg.kev_class = KEV_NETWORK_CLASS; - ev_msg.kev_subclass = KEV_DL_SUBCLASS; - - ev_msg.event_code = KEV_DL_SIFFLAGS; - strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ); - ev_data.if_family = ifp->if_family; - ev_data.if_unit = (u_int32_t) ifp->if_unit; - ev_msg.dv[0].data_length = sizeof(struct net_event_data); - ev_msg.dv[0].data_ptr = &ev_data; - ev_msg.dv[1].data_length = 0; - kev_post_msg(&ev_msg); + dlil_post_sifflags_msg(ifp); ifnet_touch_lastchange(ifp); break; case SIOCSIFCAP: error = proc_suser(p); - if (error != 0) + if (error != 0) { break; + } if ((ifr->ifr_reqcap & ~ifp->if_capabilities)) { error = EINVAL; @@ -2365,8 +3380,9 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) case SIOCSIFMETRIC: error = proc_suser(p); - if (error != 0) + if (error != 0) { break; + } ifp->if_metric = ifr->ifr_metric; @@ -2382,19 +3398,21 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; - kev_post_msg(&ev_msg); + dlil_post_complete_msg(ifp, &ev_msg); ifnet_touch_lastchange(ifp); break; case SIOCSIFPHYS: error = proc_suser(p); - if (error != 0) + if (error != 0) { break; + } error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); - if (error != 0) + if (error != 0) { break; + } ev_msg.vendor_code = KEV_VENDOR_APPLE; ev_msg.kev_class = KEV_NETWORK_CLASS; @@ -2407,7 +3425,7 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) ev_msg.dv[0].data_length = sizeof(struct net_event_data); ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; - kev_post_msg(&ev_msg); + dlil_post_complete_msg(ifp, &ev_msg); ifnet_touch_lastchange(ifp); break; @@ -2417,8 +3435,9 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) struct ifclassq *ifq = &ifp->if_snd; error = proc_suser(p); - if (error != 0) + if (error != 0) { break; + } if (ifp->if_ioctl == NULL) { error = EOPNOTSUPP; @@ -2429,8 +3448,9 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) break; } error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); - if (error != 0) + if (error != 0) { break; + } ev_msg.vendor_code = KEV_VENDOR_APPLE; ev_msg.kev_class = KEV_NETWORK_CLASS; @@ -2443,7 +3463,7 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) ev_msg.dv[0].data_length = sizeof(struct net_event_data); ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; - kev_post_msg(&ev_msg); + dlil_post_complete_msg(ifp, &ev_msg); ifnet_touch_lastchange(ifp); rt_ifmsg(ifp); @@ -2455,9 +3475,7 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) */ if (ifp->if_mtu != oldmtu) { if_rtmtu_update(ifp); -#if INET6 nd6_setmtu(ifp); -#endif /* INET6 */ /* Inform all transmit queues about the new MTU */ IFCQ_LOCK(ifq); ifnet_update_sndq(ifq, CLASSQ_EV_LINK_MTU); @@ -2469,8 +3487,9 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) case SIOCADDMULTI: case SIOCDELMULTI: error = proc_suser(p); - if (error != 0) + if (error != 0) { break; + } /* Don't allow group membership on non-multicast interfaces. */ if ((ifp->if_flags & IFF_MULTICAST) == 0) { @@ -2484,6 +3503,9 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) error = EINVAL; break; } + if (ifr->ifr_addr.sa_len > sizeof(struct sockaddr)) { + ifr->ifr_addr.sa_len = sizeof(struct sockaddr); + } /* * User is permitted to anonymously join a particular link @@ -2503,8 +3525,9 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) error = if_delmulti_anon(ifp, &ifr->ifr_addr); ev_msg.event_code = KEV_DL_DELMULTI; } - if (error != 0) + if (error != 0) { break; + } ev_msg.vendor_code = KEV_VENDOR_APPLE; ev_msg.kev_class = KEV_NETWORK_CLASS; @@ -2516,25 +3539,49 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) ev_msg.dv[0].data_length = sizeof(struct net_event_data); ev_msg.dv[0].data_ptr = &ev_data; ev_msg.dv[1].data_length = 0; - kev_post_msg(&ev_msg); + dlil_post_complete_msg(ifp, &ev_msg); ifnet_touch_lastchange(ifp); break; - case SIOCDIFPHYADDR: case SIOCSIFMEDIA: + error = proc_suser(p); + if (error != 0) { + break; + } + /* + * Silently ignore setting IFM_OTHER + */ + if (ifr->ifr_media == IFM_OTHER) { + os_log_info(OS_LOG_DEFAULT, + "%s: %s SIOCSIFMEDIA ignore IFM_OTHER", + __func__, ifp->if_xname); + error = 0; + break; + } + error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); + if (error != 0) { + break; + } + ifnet_touch_lastchange(ifp); + break; + + case SIOCDIFPHYADDR: case SIOCSIFGENERIC: case SIOCSIFLLADDR: case SIOCSIFALTMTU: case SIOCSIFVLAN: case SIOCSIFBOND: + case SIOCSIF6LOWPAN: error = proc_suser(p); - if (error != 0) + if (error != 0) { break; + } error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); - if (error != 0) + if (error != 0) { break; + } ifnet_touch_lastchange(ifp); break; @@ -2547,12 +3594,12 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) break; } /* If larger than 14-bytes we'll need another mechanism */ - if (sdl->sdl_alen > sizeof (ifr->ifr_addr.sa_data)) { + if (sdl->sdl_alen > sizeof(ifr->ifr_addr.sa_data)) { error = EMSGSIZE; break; } /* Follow the same convention used by SIOCSIFLLADDR */ - bzero(&ifr->ifr_addr, sizeof (ifr->ifr_addr)); + bzero(&ifr->ifr_addr, sizeof(ifr->ifr_addr)); ifr->ifr_addr.sa_family = AF_LINK; ifr->ifr_addr.sa_len = sdl->sdl_alen; error = ifnet_guarded_lladdr_copy_bytes(ifp, @@ -2567,7 +3614,7 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) break; case SIOCGIFFUNCTIONALTYPE: - ifr->ifr_functional_type = if_functional_type(ifp); + ifr->ifr_functional_type = if_functional_type(ifp, FALSE); break; case SIOCGIFPSRCADDR: @@ -2576,6 +3623,7 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) case SIOCGIFDEVMTU: case SIOCGIFVLAN: case SIOCGIFBOND: + case SIOCGIF6LOWPAN: error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); break; @@ -2598,11 +3646,11 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) case SIOCGIFLINKQUALITYMETRIC: ifnet_lock_shared(ifp); - if ((ifp->if_interface_state.valid_bitmask & - IF_INTERFACE_STATE_LQM_STATE_VALID)) + if ((ifp->if_interface_state.valid_bitmask & + IF_INTERFACE_STATE_LQM_STATE_VALID)) { ifr->ifr_link_quality_metric = - ifp->if_interface_state.lqm_state; - else if ((ifp->if_refflags & IFRF_ATTACHED)) { + ifp->if_interface_state.lqm_state; + } else if (IF_FULLY_ATTACHED(ifp)) { ifr->ifr_link_quality_metric = IFNET_LQM_THRESH_UNKNOWN; } else { @@ -2626,10 +3674,11 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) case SIOCGIFEXPENSIVE: ifnet_lock_shared(ifp); - if (ifp->if_eflags & IFEF_EXPENSIVE) + if (ifp->if_eflags & IFEF_EXPENSIVE) { ifr->ifr_expensive = 1; - else + } else { ifr->ifr_expensive = 0; + } ifnet_lock_done(ifp); break; @@ -2638,14 +3687,16 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) struct ifnet *difp; if ((error = priv_check_cred(kauth_cred_get(), - PRIV_NET_INTERFACE_CONTROL, 0)) != 0) - return (error); - ifnet_lock_exclusive(ifp); - if (ifr->ifr_expensive) - ifp->if_eflags |= IFEF_EXPENSIVE; - else - ifp->if_eflags &= ~IFEF_EXPENSIVE; - ifnet_lock_done(ifp); + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + if (ifr->ifr_expensive) { + if_set_eflags(ifp, IFEF_EXPENSIVE); + } else { + if_clear_eflags(ifp, IFEF_EXPENSIVE); + } + ifnet_increment_generation(ifp); + /* * Update the expensive bit in the delegated interface * structure. @@ -2654,35 +3705,78 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) TAILQ_FOREACH(difp, &ifnet_head, if_link) { ifnet_lock_exclusive(difp); if (difp->if_delegated.ifp == ifp) { - difp->if_delegated.expensive = + difp->if_delegated.expensive = ifp->if_eflags & IFEF_EXPENSIVE ? 1 : 0; + ifnet_increment_generation(difp); + } + ifnet_lock_done(difp); + } + ifnet_head_done(); + necp_update_all_clients(); + break; + } + case SIOCGIFCONSTRAINED: + if ((ifp->if_xflags & IFXF_CONSTRAINED) != 0) { + ifr->ifr_constrained = 1; + } else { + ifr->ifr_constrained = 0; + } + break; + + case SIOCSIFCONSTRAINED: + { + struct ifnet *difp; + + if ((error = priv_check_cred(kauth_cred_get(), + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + if (ifr->ifr_constrained) { + if_set_xflags(ifp, IFXF_CONSTRAINED); + } else { + if_clear_xflags(ifp, IFXF_CONSTRAINED); + } + ifnet_increment_generation(ifp); + /* + * Update the constrained bit in the delegated interface + * structure. + */ + ifnet_head_lock_shared(); + TAILQ_FOREACH(difp, &ifnet_head, if_link) { + ifnet_lock_exclusive(difp); + if (difp->if_delegated.ifp == ifp) { + difp->if_delegated.constrained = + ((ifp->if_xflags & IFXF_CONSTRAINED) != 0) ? 1 : 0; + ifnet_increment_generation(difp); } ifnet_lock_done(difp); } ifnet_head_done(); + necp_update_all_clients(); break; } case SIOCGIF2KCL: ifnet_lock_shared(ifp); - if (ifp->if_eflags & IFEF_2KCL) + if (ifp->if_eflags & IFEF_2KCL) { ifr->ifr_2kcl = 1; - else + } else { ifr->ifr_2kcl = 0; + } ifnet_lock_done(ifp); break; case SIOCSIF2KCL: if ((error = priv_check_cred(kauth_cred_get(), - PRIV_NET_INTERFACE_CONTROL, 0)) != 0) - return (error); - ifnet_lock_exclusive(ifp); - if (ifr->ifr_2kcl) - ifp->if_eflags |= IFEF_2KCL; - else - ifp->if_eflags &= ~IFEF_2KCL; - ifnet_lock_done(ifp); + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + if (ifr->ifr_2kcl) { + if_set_eflags(ifp, IFEF_2KCL); + } else { + if_clear_eflags(ifp, IFEF_2KCL); + } break; case SIOCGSTARTDELAY: ifnet_lock_shared(ifp); @@ -2717,17 +3811,18 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) ifr->ifr_addr.sa_len = 16; } #else - if (ifr->ifr_addr.sa_len == 0) + if (ifr->ifr_addr.sa_len == 0) { ifr->ifr_addr.sa_len = 16; + } #endif } else if (cmd == OSIOCGIFADDR) { - cmd = SIOCGIFADDR; /* struct ifreq */ + cmd = SIOCGIFADDR; /* struct ifreq */ } else if (cmd == OSIOCGIFDSTADDR) { - cmd = SIOCGIFDSTADDR; /* struct ifreq */ + cmd = SIOCGIFDSTADDR; /* struct ifreq */ } else if (cmd == OSIOCGIFBRDADDR) { - cmd = SIOCGIFBRDADDR; /* struct ifreq */ + cmd = SIOCGIFBRDADDR; /* struct ifreq */ } else if (cmd == OSIOCGIFNETMASK) { - cmd = SIOCGIFNETMASK; /* struct ifreq */ + cmd = SIOCGIFNETMASK; /* struct ifreq */ } socket_lock(so, 1); @@ -2741,16 +3836,19 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) case OSIOCGIFBRDADDR: case OSIOCGIFNETMASK: bcopy(&ifr->ifr_addr.sa_family, &ifr->ifr_addr, - sizeof (u_short)); + sizeof(u_short)); } if (cmd == SIOCSIFKPI) { int temperr = proc_suser(p); - if (temperr != 0) + if (temperr != 0) { error = temperr; + } } - - if (error == EOPNOTSUPP || error == ENOTSUP) { + // Don't allow to call SIOCSIFADDR and SIOCSIFDSTADDR + // with ifreq as the code expects ifaddr + if ((error == EOPNOTSUPP || error == ENOTSUP) && + !(cmd == SIOCSIFADDR || cmd == SIOCSIFDSTADDR)) { error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); } @@ -2758,60 +3856,230 @@ ifioctl_ifreq(struct socket *so, u_long cmd, struct ifreq *ifr, struct proc *p) case SIOCGIFINTERFACESTATE: if_get_state(ifp, &ifr->ifr_interface_state); - break; + case SIOCSIFINTERFACESTATE: if ((error = priv_check_cred(kauth_cred_get(), - PRIV_NET_INTERFACE_CONTROL, 0)) != 0) - return (error); + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } error = if_state_update(ifp, &ifr->ifr_interface_state); break; case SIOCSIFPROBECONNECTIVITY: if ((error = priv_check_cred(kauth_cred_get(), - PRIV_NET_INTERFACE_CONTROL, 0)) != 0) - return (error); + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } error = if_probe_connectivity(ifp, ifr->ifr_probe_connectivity); break; case SIOCGIFPROBECONNECTIVITY: if ((error = priv_check_cred(kauth_cred_get(), - PRIV_NET_INTERFACE_CONTROL, 0)) != 0) - return (error); - if (ifp->if_eflags & IFEF_PROBE_CONNECTIVITY) + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + if (ifp->if_eflags & IFEF_PROBE_CONNECTIVITY) { ifr->ifr_probe_connectivity = 1; - else + } else { ifr->ifr_probe_connectivity = 0; + } break; case SIOCGECNMODE: - if ((ifp->if_eflags & (IFEF_ECN_ENABLE|IFEF_ECN_DISABLE)) == - IFEF_ECN_ENABLE) + if ((ifp->if_eflags & (IFEF_ECN_ENABLE | IFEF_ECN_DISABLE)) == + IFEF_ECN_ENABLE) { ifr->ifr_ecn_mode = IFRTYPE_ECN_ENABLE; - else if ((ifp->if_eflags & (IFEF_ECN_ENABLE|IFEF_ECN_DISABLE)) == - IFEF_ECN_DISABLE) + } else if ((ifp->if_eflags & (IFEF_ECN_ENABLE | IFEF_ECN_DISABLE)) == + IFEF_ECN_DISABLE) { ifr->ifr_ecn_mode = IFRTYPE_ECN_DISABLE; - else + } else { ifr->ifr_ecn_mode = IFRTYPE_ECN_DEFAULT; + } break; case SIOCSECNMODE: + if ((error = priv_check_cred(kauth_cred_get(), + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } if (ifr->ifr_ecn_mode == IFRTYPE_ECN_DEFAULT) { - ifp->if_eflags &= ~(IFEF_ECN_ENABLE|IFEF_ECN_DISABLE); + if_clear_eflags(ifp, IFEF_ECN_ENABLE | IFEF_ECN_DISABLE); } else if (ifr->ifr_ecn_mode == IFRTYPE_ECN_ENABLE) { - ifp->if_eflags |= IFEF_ECN_ENABLE; - ifp->if_eflags &= ~IFEF_ECN_DISABLE; + if_set_eflags(ifp, IFEF_ECN_ENABLE); + if_clear_eflags(ifp, IFEF_ECN_DISABLE); } else if (ifr->ifr_ecn_mode == IFRTYPE_ECN_DISABLE) { - ifp->if_eflags |= IFEF_ECN_DISABLE; - ifp->if_eflags &= ~IFEF_ECN_ENABLE; - } else + if_set_eflags(ifp, IFEF_ECN_DISABLE); + if_clear_eflags(ifp, IFEF_ECN_ENABLE); + } else { + error = EINVAL; + } + break; + + case SIOCSIFTIMESTAMPENABLE: + case SIOCSIFTIMESTAMPDISABLE: + error = proc_suser(p); + if (error != 0) { + break; + } + + if ((cmd == SIOCSIFTIMESTAMPENABLE && + (ifp->if_xflags & IFXF_TIMESTAMP_ENABLED) != 0) || + (cmd == SIOCSIFTIMESTAMPDISABLE && + (ifp->if_xflags & IFXF_TIMESTAMP_ENABLED) == 0)) { + break; + } + if (cmd == SIOCSIFTIMESTAMPENABLE) { + if_set_xflags(ifp, IFXF_TIMESTAMP_ENABLED); + } else { + if_clear_xflags(ifp, IFXF_TIMESTAMP_ENABLED); + } + /* + * Pass the setting to the interface if it supports either + * software or hardware time stamping + */ + if (ifp->if_capabilities & (IFCAP_HW_TIMESTAMP | + IFCAP_SW_TIMESTAMP)) { + error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, + (caddr_t)ifr); + } + break; + case SIOCGIFTIMESTAMPENABLED: { + if ((ifp->if_xflags & IFXF_TIMESTAMP_ENABLED) != 0) { + ifr->ifr_intval = 1; + } else { + ifr->ifr_intval = 0; + } + break; + } + case SIOCSQOSMARKINGMODE: + if ((error = priv_check_cred(kauth_cred_get(), + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + error = if_set_qosmarking_mode(ifp, ifr->ifr_qosmarking_mode); + break; + + case SIOCGQOSMARKINGMODE: + ifr->ifr_qosmarking_mode = ifp->if_qosmarking_mode; + break; + + case SIOCSQOSMARKINGENABLED: + if ((error = priv_check_cred(kauth_cred_get(), + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + if (ifr->ifr_qosmarking_enabled != 0) { + if_set_eflags(ifp, IFEF_QOSMARKING_ENABLED); + } else { + if_clear_eflags(ifp, IFEF_QOSMARKING_ENABLED); + } + break; + + case SIOCGQOSMARKINGENABLED: + ifr->ifr_qosmarking_enabled = + ((ifp->if_eflags & IFEF_QOSMARKING_ENABLED) != 0) ? 1 : 0; + break; + + case SIOCSIFDISABLEOUTPUT: +#if (DEBUG || DEVELOPMENT) + if (ifr->ifr_disable_output == 1) { + error = ifnet_disable_output(ifp); + } else if (ifr->ifr_disable_output == 0) { + error = ifnet_enable_output(ifp); + } else { error = EINVAL; + } +#else + error = EINVAL; +#endif /* (DEBUG || DEVELOPMENT) */ + break; + + case SIOCSIFSUBFAMILY: + if ((error = priv_check_cred(kauth_cred_get(), + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + error = ifnet_ioctl(ifp, SOCK_DOM(so), cmd, (caddr_t)ifr); + break; + + case SIOCSIFLOWINTERNET: + if ((error = priv_check_cred(kauth_cred_get(), + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + + if (ifr->ifr_low_internet & IFRTYPE_LOW_INTERNET_ENABLE_UL) { + if_set_xflags(ifp, IFXF_LOW_INTERNET_UL); + } else { + if_clear_xflags(ifp, IFXF_LOW_INTERNET_UL); + } + if (ifr->ifr_low_internet & IFRTYPE_LOW_INTERNET_ENABLE_DL) { + if_set_xflags(ifp, IFXF_LOW_INTERNET_DL); + } else { + if_clear_xflags(ifp, IFXF_LOW_INTERNET_DL); + } + break; + case SIOCGIFLOWINTERNET: + ifnet_lock_shared(ifp); + ifr->ifr_low_internet = 0; + if ((ifp->if_xflags & IFXF_LOW_INTERNET_UL) != 0) { + ifr->ifr_low_internet |= + IFRTYPE_LOW_INTERNET_ENABLE_UL; + } + if ((ifp->if_xflags & IFXF_LOW_INTERNET_DL) != 0) { + ifr->ifr_low_internet |= + IFRTYPE_LOW_INTERNET_ENABLE_DL; + } + ifnet_lock_done(ifp); + break; + case SIOCGIFLOWPOWER: + ifr->ifr_low_power_mode = + ((ifp->if_xflags & IFXF_LOW_POWER) != 0); + break; + case SIOCSIFLOWPOWER: +#if (DEVELOPMENT || DEBUG) + error = if_set_low_power(ifp, (ifr->ifr_low_power_mode != 0)); +#else /* DEVELOPMENT || DEBUG */ + error = EOPNOTSUPP; +#endif /* DEVELOPMENT || DEBUG */ + break; + + case SIOCGIFMPKLOG: + ifr->ifr_mpk_log = ((ifp->if_xflags & IFXF_MPK_LOG) != 0); + break; + case SIOCSIFMPKLOG: + if (ifr->ifr_mpk_log) { + if_set_xflags(ifp, IFXF_MPK_LOG); + } else { + if_clear_xflags(ifp, IFXF_MPK_LOG); + } + break; + case SIOCGIFNOACKPRIO: + if ((ifp->if_eflags & IFEF_NOACKPRI) != 0) { + ifr->ifr_noack_prio = 1; + } else { + ifr->ifr_noack_prio = 0; + } + break; + + case SIOCSIFNOACKPRIO: + if ((error = priv_check_cred(kauth_cred_get(), + PRIV_NET_INTERFACE_CONTROL, 0)) != 0) { + return error; + } + if (ifr->ifr_noack_prio) { + if_set_eflags(ifp, IFEF_NOACKPRI); + } else { + if_clear_eflags(ifp, IFEF_NOACKPRI); + } break; + default: VERIFY(0); /* NOTREACHED */ } - return (error); + return error; } int @@ -2822,9 +4090,9 @@ ifioctllocked(struct socket *so, u_long cmd, caddr_t data, struct proc *p) socket_unlock(so, 0); error = ifioctl(so, cmd, data, p); socket_lock(so, 0); - return(error); + return error; } - + /* * Set/clear promiscuous mode on interface ifp based on the truth value * of pswitch. The calls are reference counted so that only the first @@ -2833,7 +4101,7 @@ ifioctllocked(struct socket *so, u_long cmd, caddr_t data, struct proc *p) */ errno_t ifnet_set_promiscuous( - ifnet_t ifp, + ifnet_t ifp, int pswitch) { int error = 0; @@ -2843,15 +4111,16 @@ ifnet_set_promiscuous( ifnet_lock_exclusive(ifp); oldflags = ifp->if_flags; ifp->if_pcount += pswitch ? 1 : -1; - - if (ifp->if_pcount > 0) + + if (ifp->if_pcount > 0) { ifp->if_flags |= IFF_PROMISC; - else + } else { ifp->if_flags &= ~IFF_PROMISC; - + } + newflags = ifp->if_flags; ifnet_lock_done(ifp); - + if (newflags != oldflags && (newflags & IFF_UP) != 0) { error = ifnet_ioctl(ifp, 0, SIOCSIFFLAGS, NULL); if (error == 0) { @@ -2860,14 +4129,15 @@ ifnet_set_promiscuous( ifnet_lock_exclusive(ifp); // revert the flags ifp->if_pcount -= pswitch ? 1 : -1; - if (ifp->if_pcount > 0) - ifp->if_flags |= IFF_PROMISC; - else - ifp->if_flags &= ~IFF_PROMISC; + if (ifp->if_pcount > 0) { + ifp->if_flags |= IFF_PROMISC; + } else { + ifp->if_flags &= ~IFF_PROMISC; + } ifnet_lock_done(ifp); } } - + if (newflags != oldflags) { log(LOG_INFO, "%s: promiscuous mode %s%s\n", if_name(ifp), @@ -2900,18 +4170,18 @@ ifconf(u_long cmd, user_addr_t ifrp, int *ret_space) * Zero the ifr buffer to make sure we don't * disclose the contents of the stack. */ - bzero(&ifr, sizeof (struct ifreq)); + bzero(&ifr, sizeof(struct ifreq)); space = *ret_space; ifnet_head_lock_shared(); - for (ifp = ifnet_head.tqh_first; space > sizeof (ifr) && + for (ifp = ifnet_head.tqh_first; space > sizeof(ifr) && ifp; ifp = ifp->if_link.tqe_next) { char workbuf[64]; size_t ifnlen, addrs; - ifnlen = snprintf(workbuf, sizeof (workbuf), + ifnlen = snprintf(workbuf, sizeof(workbuf), "%s", if_name(ifp)); - if (ifnlen + 1 > sizeof (ifr.ifr_name)) { + if (ifnlen + 1 > sizeof(ifr.ifr_name)) { error = ENAMETOOLONG; break; } else { @@ -2922,7 +4192,7 @@ ifconf(u_long cmd, user_addr_t ifrp, int *ret_space) addrs = 0; ifa = ifp->if_addrhead.tqh_first; - for (; space > sizeof (ifr) && ifa; + for (; space > sizeof(ifr) && ifa; ifa = ifa->ifa_link.tqe_next) { struct sockaddr *sa; union { @@ -2935,7 +4205,7 @@ ifconf(u_long cmd, user_addr_t ifrp, int *ret_space) * Make sure to accomodate the largest possible * size of SA(if_lladdr)->sa_len. */ - _CASSERT(sizeof (u) == (SOCK_MAXADDRLEN + 1)); + _CASSERT(sizeof(u) == (SOCK_MAXADDRLEN + 1)); IFA_LOCK(ifa); sa = ifa->ifa_addr; @@ -2957,22 +4227,22 @@ ifconf(u_long cmd, user_addr_t ifrp, int *ret_space) ifr.ifr_addr = *sa; osa->sa_family = sa->sa_family; error = copyout((caddr_t)&ifr, ifrp, - sizeof (ifr)); - ifrp += sizeof (struct ifreq); - } else if (sa->sa_len <= sizeof (*sa)) { + sizeof(ifr)); + ifrp += sizeof(struct ifreq); + } else if (sa->sa_len <= sizeof(*sa)) { ifr.ifr_addr = *sa; error = copyout((caddr_t)&ifr, ifrp, - sizeof (ifr)); - ifrp += sizeof (struct ifreq); + sizeof(ifr)); + ifrp += sizeof(struct ifreq); } else { if (space < - sizeof (ifr) + sa->sa_len - sizeof (*sa)) { + sizeof(ifr) + sa->sa_len - sizeof(*sa)) { IFA_UNLOCK(ifa); break; } - space -= sa->sa_len - sizeof (*sa); + space -= sa->sa_len - sizeof(*sa); error = copyout((caddr_t)&ifr, ifrp, - sizeof (ifr.ifr_name)); + sizeof(ifr.ifr_name)); if (error == 0) { error = copyout((caddr_t)sa, (ifrp + offsetof(struct ifreq, ifr_addr)), @@ -2982,27 +4252,30 @@ ifconf(u_long cmd, user_addr_t ifrp, int *ret_space) ifr_addr)); } IFA_UNLOCK(ifa); - if (error) + if (error) { break; - space -= sizeof (ifr); + } + space -= sizeof(ifr); } ifnet_lock_done(ifp); - if (error) + if (error) { break; + } if (!addrs) { - bzero((caddr_t)&ifr.ifr_addr, sizeof (ifr.ifr_addr)); - error = copyout((caddr_t)&ifr, ifrp, sizeof (ifr)); - if (error) + bzero((caddr_t)&ifr.ifr_addr, sizeof(ifr.ifr_addr)); + error = copyout((caddr_t)&ifr, ifrp, sizeof(ifr)); + if (error) { break; - space -= sizeof (ifr); - ifrp += sizeof (struct ifreq); + } + space -= sizeof(ifr); + ifrp += sizeof(struct ifreq); } } ifnet_head_done(); *ret_space -= space; net_thread_marks_pop(marks); - return (error); + return error; } /* @@ -3012,7 +4285,7 @@ int if_allmulti(struct ifnet *ifp, int onswitch) { int error = 0; - int modified = 0; + int modified = 0; ifnet_lock_exclusive(ifp); @@ -3032,11 +4305,13 @@ if_allmulti(struct ifnet *ifp, int onswitch) } ifnet_lock_done(ifp); - if (modified) + if (modified) { error = ifnet_ioctl(ifp, 0, SIOCSIFFLAGS, NULL); + } - if (error == 0) + if (error == 0) { rt_ifmsg(ifp); + } return error; } @@ -3057,7 +4332,7 @@ ifma_alloc(int how) ifma->ifma_trace = ifma_trace; } } - return (ifma); + return ifma; } static void @@ -3141,10 +4416,11 @@ ifma_trace(struct ifmultiaddr *ifma, int refhold) void ifma_addref(struct ifmultiaddr *ifma, int locked) { - if (!locked) + if (!locked) { IFMA_LOCK(ifma); - else + } else { IFMA_LOCK_ASSERT_HELD(ifma); + } if (++ifma->ifma_refcount == 0) { panic("%s: ifma=%p wraparound refcnt", __func__, ifma); @@ -3152,8 +4428,9 @@ ifma_addref(struct ifmultiaddr *ifma, int locked) } else if (ifma->ifma_trace != NULL) { (*ifma->ifma_trace)(ifma, TRUE); } - if (!locked) + if (!locked) { IFMA_UNLOCK(ifma); + } } void @@ -3180,10 +4457,11 @@ ifma_remref(struct ifmultiaddr *ifma) ifma->ifma_ifp = NULL; ifma->ifma_ll = NULL; IFMA_UNLOCK(ifma); - ifma_free(ifma); /* deallocate it */ + ifma_free(ifma); /* deallocate it */ - if (ll != NULL) + if (ll != NULL) { IFMA_REMREF(ll); + } } static void @@ -3245,14 +4523,16 @@ if_detach_ifma(struct ifnet *ifp, struct ifmultiaddr *ifma, int anon) if (anon) { --ifma->ifma_anoncnt; - if (ifma->ifma_anoncnt > 0) - return (0); + if (ifma->ifma_anoncnt > 0) { + return 0; + } ifma->ifma_flags &= ~IFMAF_ANONYMOUS; } --ifma->ifma_reqcnt; - if (ifma->ifma_reqcnt > 0) - return (0); + if (ifma->ifma_reqcnt > 0) { + return 0; + } if (ifma->ifma_protospec != NULL) { panic("%s: Protospec not NULL for ifma=%p", __func__, ifma); @@ -3276,8 +4556,9 @@ if_detach_ifma(struct ifnet *ifp, struct ifmultiaddr *ifma, int anon) */ ifma->ifma_debug &= ~IFD_ATTACHED; LIST_REMOVE(ifma, ifma_link); - if (LIST_EMPTY(&ifp->if_multiaddrs)) + if (LIST_EMPTY(&ifp->if_multiaddrs)) { ifp->if_updatemcasts = 0; + } if (ifma->ifma_debug & IFD_DEBUG) { /* Become a regular mutex, just in case */ @@ -3289,11 +4570,11 @@ if_detach_ifma(struct ifnet *ifp, struct ifmultiaddr *ifma, int anon) ifma->ifma_debug |= IFD_TRASHED; } - return (1); + return 1; } /* - * Find an ifmultiaddr that matches a socket address on an interface. + * Find an ifmultiaddr that matches a socket address on an interface. * * Caller is responsible for holding the ifnet_lock while calling * this function. @@ -3305,9 +4586,9 @@ if_addmulti_doesexist(struct ifnet *ifp, const struct sockaddr *sa, struct ifmultiaddr *ifma; for (ifma = LIST_FIRST(&ifp->if_multiaddrs); ifma != NULL; - ifma = LIST_NEXT(ifma, ifma_link)) { + ifma = LIST_NEXT(ifma, ifma_link)) { IFMA_LOCK_SPIN(ifma); - if (!equal(sa, ifma->ifma_addr)) { + if (!ifa_equal(sa, ifma->ifma_addr)) { IFMA_UNLOCK(ifma); continue; } @@ -3331,66 +4612,69 @@ if_addmulti_doesexist(struct ifnet *ifp, const struct sockaddr *sa, IFMA_ADDREF_LOCKED(ifma); } IFMA_UNLOCK(ifma); - return (0); + return 0; } - return (ENOENT); + return ENOENT; } /* * Radar 3642395, make sure all multicasts are in a standard format. */ -static struct sockaddr* +static struct sockaddr * copy_and_normalize(const struct sockaddr *original) { - int alen = 0; - const u_char *aptr = NULL; - struct sockaddr *copy = NULL; - struct sockaddr_dl *sdl_new = NULL; - int len = 0; + int alen = 0; + const u_char *aptr = NULL; + struct sockaddr *copy = NULL; + struct sockaddr_dl *sdl_new = NULL; + int len = 0; if (original->sa_family != AF_LINK && original->sa_family != AF_UNSPEC) { /* Just make a copy */ - MALLOC(copy, struct sockaddr*, original->sa_len, + MALLOC(copy, struct sockaddr *, original->sa_len, M_IFADDR, M_WAITOK); - if (copy != NULL) + if (copy != NULL) { bcopy(original, copy, original->sa_len); - return (copy); + } + return copy; } switch (original->sa_family) { - case AF_LINK: { - const struct sockaddr_dl *sdl_original = - (struct sockaddr_dl*)(uintptr_t)(size_t)original; - - if (sdl_original->sdl_nlen + sdl_original->sdl_alen + - sdl_original->sdl_slen + - offsetof(struct sockaddr_dl, sdl_data) > - sdl_original->sdl_len) - return (NULL); - - alen = sdl_original->sdl_alen; - aptr = CONST_LLADDR(sdl_original); + case AF_LINK: { + const struct sockaddr_dl *sdl_original = + (struct sockaddr_dl *)(uintptr_t)(size_t)original; + + if (sdl_original->sdl_nlen + sdl_original->sdl_alen + + sdl_original->sdl_slen + + offsetof(struct sockaddr_dl, sdl_data) > + sdl_original->sdl_len) { + return NULL; } - break; - case AF_UNSPEC: { - if (original->sa_len < ETHER_ADDR_LEN + - offsetof(struct sockaddr, sa_data)) { - return (NULL); - } + alen = sdl_original->sdl_alen; + aptr = CONST_LLADDR(sdl_original); + } + break; - alen = ETHER_ADDR_LEN; - aptr = (const u_char*)original->sa_data; + case AF_UNSPEC: { + if (original->sa_len < ETHER_ADDR_LEN + + offsetof(struct sockaddr, sa_data)) { + return NULL; } - break; + + alen = ETHER_ADDR_LEN; + aptr = (const u_char *)original->sa_data; + } + break; } - if (alen == 0 || aptr == NULL) - return (NULL); + if (alen == 0 || aptr == NULL) { + return NULL; + } len = alen + offsetof(struct sockaddr_dl, sdl_data); - MALLOC(sdl_new, struct sockaddr_dl*, len, M_IFADDR, M_WAITOK); + MALLOC(sdl_new, struct sockaddr_dl *, len, M_IFADDR, M_WAITOK); if (sdl_new != NULL) { bzero(sdl_new, len); @@ -3400,7 +4684,7 @@ copy_and_normalize(const struct sockaddr *original) bcopy(aptr, LLADDR(sdl_new), alen); } - return ((struct sockaddr*)sdl_new); + return (struct sockaddr *)sdl_new; } /* @@ -3411,7 +4695,7 @@ int if_addmulti(struct ifnet *ifp, const struct sockaddr *sa, struct ifmultiaddr **retifma) { - return (if_addmulti_common(ifp, sa, retifma, 0)); + return if_addmulti_common(ifp, sa, retifma, 0); } /* @@ -3423,7 +4707,7 @@ int if_addmulti_anon(struct ifnet *ifp, const struct sockaddr *sa, struct ifmultiaddr **retifma) { - return (if_addmulti_common(ifp, sa, retifma, 1)); + return if_addmulti_common(ifp, sa, retifma, 1); } /* @@ -3483,8 +4767,9 @@ if_addmulti_common(struct ifnet *ifp, const struct sockaddr *sa, /* If the address is already present, return a new reference to it */ error = if_addmulti_doesexist(ifp, sa, retifma, anon); ifnet_lock_done(ifp); - if (error == 0) + if (error == 0) { goto cleanup; + } /* * The address isn't already present; give the link layer a chance @@ -3492,7 +4777,7 @@ if_addmulti_common(struct ifnet *ifp, const struct sockaddr *sa, * maps to, if it isn't one already. */ error = dlil_resolve_multi(ifp, sa, (struct sockaddr *)&storage, - sizeof (storage)); + sizeof(storage)); if (error == 0 && storage.ss_len != 0) { llsa = copy_and_normalize((struct sockaddr *)&storage); if (llsa == NULL) { @@ -3508,10 +4793,11 @@ if_addmulti_common(struct ifnet *ifp, const struct sockaddr *sa, } /* to be similar to FreeBSD */ - if (error == EOPNOTSUPP) + if (error == EOPNOTSUPP) { error = 0; - else if (error != 0) + } else if (error != 0) { goto cleanup; + } /* Allocate while we aren't holding any locks */ if (dupsa == NULL) { @@ -3538,7 +4824,7 @@ if_addmulti_common(struct ifnet *ifp, const struct sockaddr *sa, } if (llifma != NULL) { - VERIFY(!anon); /* must not get here if "anonymous" */ + VERIFY(!anon); /* must not get here if "anonymous" */ if (if_addmulti_doesexist(ifp, llsa, &ifma->ifma_ll, 0) == 0) { FREE(llsa, M_IFADDR); llsa = NULL; @@ -3565,10 +4851,10 @@ if_addmulti_common(struct ifnet *ifp, const struct sockaddr *sa, ifma->ifma_ifp = ifp; IFMA_LOCK(ifma); if_attach_ifma(ifp, ifma, anon); - IFMA_ADDREF_LOCKED(ifma); /* for this routine */ + IFMA_ADDREF_LOCKED(ifma); /* for this routine */ if (retifma != NULL) { *retifma = ifma; - IFMA_ADDREF_LOCKED(*retifma); /* for caller */ + IFMA_ADDREF_LOCKED(*retifma); /* for caller */ } lladdr = (ifma->ifma_addr->sa_family == AF_UNSPEC || ifma->ifma_addr->sa_family == AF_LINK); @@ -3576,32 +4862,38 @@ if_addmulti_common(struct ifnet *ifp, const struct sockaddr *sa, ifnet_lock_done(ifp); rt_newmaddrmsg(RTM_NEWMADDR, ifma); - IFMA_REMREF(ifma); /* for this routine */ + IFMA_REMREF(ifma); /* for this routine */ /* * We are certain we have added something, so call down to the * interface to let them know about it. Do this only for newly- * added AF_LINK/AF_UNSPEC address in the if_multiaddrs set. */ - if (lladdr || ll_firstref) + if (lladdr || ll_firstref) { (void) ifnet_ioctl(ifp, 0, SIOCADDMULTI, NULL); + } - if (ifp->if_updatemcasts > 0) + if (ifp->if_updatemcasts > 0) { ifp->if_updatemcasts = 0; + } - return (0); + return 0; cleanup: - if (ifma != NULL) + if (ifma != NULL) { ifma_free(ifma); - if (dupsa != NULL) + } + if (dupsa != NULL) { FREE(dupsa, M_IFADDR); - if (llifma != NULL) + } + if (llifma != NULL) { ifma_free(llifma); - if (llsa != NULL) + } + if (llsa != NULL) { FREE(llsa, M_IFADDR); + } - return (error); + return error; } /* @@ -3611,7 +4903,7 @@ cleanup: int if_delmulti(struct ifnet *ifp, const struct sockaddr *sa) { - return (if_delmulti_common(NULL, ifp, sa, 0)); + return if_delmulti_common(NULL, ifp, sa, 0); } /* @@ -3621,7 +4913,7 @@ if_delmulti(struct ifnet *ifp, const struct sockaddr *sa) int if_delmulti_ifma(struct ifmultiaddr *ifma) { - return (if_delmulti_common(ifma, NULL, NULL, 0)); + return if_delmulti_common(ifma, NULL, NULL, 0); } /* @@ -3632,7 +4924,7 @@ if_delmulti_ifma(struct ifmultiaddr *ifma) int if_delmulti_anon(struct ifnet *ifp, const struct sockaddr *sa) { - return (if_delmulti_common(NULL, ifp, sa, 1)); + return if_delmulti_common(NULL, ifp, sa, 1); } /* @@ -3644,30 +4936,32 @@ static int if_delmulti_common(struct ifmultiaddr *ifma, struct ifnet *ifp, const struct sockaddr *sa, int anon) { - struct sockaddr *dupsa = NULL; - int lastref, ll_lastref = 0, lladdr; - struct ifmultiaddr *ll = NULL; + struct sockaddr *dupsa = NULL; + int lastref, ll_lastref = 0, lladdr; + struct ifmultiaddr *ll = NULL; /* sanity check for callers */ VERIFY(ifma != NULL || (ifp != NULL && sa != NULL)); - if (ifma != NULL) + if (ifma != NULL) { ifp = ifma->ifma_ifp; + } if (sa != NULL && (sa->sa_family == AF_LINK || sa->sa_family == AF_UNSPEC)) { dupsa = copy_and_normalize(sa); - if (dupsa == NULL) - return (ENOMEM); + if (dupsa == NULL) { + return ENOMEM; + } sa = dupsa; } ifnet_lock_exclusive(ifp); if (ifma == NULL) { for (ifma = LIST_FIRST(&ifp->if_multiaddrs); ifma != NULL; - ifma = LIST_NEXT(ifma, ifma_link)) { + ifma = LIST_NEXT(ifma, ifma_link)) { IFMA_LOCK(ifma); - if (!equal(sa, ifma->ifma_addr) || + if (!ifa_equal(sa, ifma->ifma_addr) || (anon && !(ifma->ifma_flags & IFMAF_ANONYMOUS))) { VERIFY(!(ifma->ifma_flags & IFMAF_ANONYMOUS) || ifma->ifma_anoncnt != 0); @@ -3678,16 +4972,17 @@ if_delmulti_common(struct ifmultiaddr *ifma, struct ifnet *ifp, break; } if (ifma == NULL) { - if (dupsa != NULL) + if (dupsa != NULL) { FREE(dupsa, M_IFADDR); + } ifnet_lock_done(ifp); - return (ENOENT); + return ENOENT; } } else { IFMA_LOCK(ifma); } IFMA_LOCK_ASSERT_HELD(ifma); - IFMA_ADDREF_LOCKED(ifma); /* for this routine */ + IFMA_ADDREF_LOCKED(ifma); /* for this routine */ lastref = if_detach_ifma(ifp, ifma, anon); VERIFY(!lastref || (!(ifma->ifma_debug & IFD_ATTACHED) && ifma->ifma_reqcnt == 0)); @@ -3703,8 +4998,9 @@ if_delmulti_common(struct ifmultiaddr *ifma, struct ifnet *ifp, } ifnet_lock_done(ifp); - if (lastref) + if (lastref) { rt_newmaddrmsg(RTM_DELMADDR, ifma); + } if ((ll == NULL && lastref && lladdr) || ll_lastref) { /* @@ -3716,16 +5012,18 @@ if_delmulti_common(struct ifmultiaddr *ifma, struct ifnet *ifp, ifnet_ioctl(ifp, 0, SIOCDELMULTI, NULL); } - if (lastref) - IFMA_REMREF(ifma); /* for if_multiaddrs list */ - if (ll_lastref) - IFMA_REMREF(ll); /* for if_multiaddrs list */ - - IFMA_REMREF(ifma); /* for this routine */ - if (dupsa != NULL) + if (lastref) { + IFMA_REMREF(ifma); /* for if_multiaddrs list */ + } + if (ll_lastref) { + IFMA_REMREF(ll); /* for if_multiaddrs list */ + } + IFMA_REMREF(ifma); /* for this routine */ + if (dupsa != NULL) { FREE(dupsa, M_IFADDR); + } - return (0); + return 0; } /* @@ -3736,8 +5034,8 @@ int if_down_all(void) { struct ifnet **ifp; - u_int32_t count; - u_int32_t i; + u_int32_t count; + u_int32_t i; if (ifnet_list_get_all(IFNET_FAMILY_ANY, &ifp, &count) == 0) { for (i = 0; i < count; i++) { @@ -3752,7 +5050,7 @@ if_down_all(void) /* * Delete Routes for a Network Interface - * + * * Called for each routing entry via the rnh->rnh_walktree() call above * to delete all route entries referencing a detaching network interface. * @@ -3768,12 +5066,13 @@ if_down_all(void) static int if_rtdel(struct radix_node *rn, void *arg) { - struct rtentry *rt = (struct rtentry *)rn; - struct ifnet *ifp = arg; - int err; + struct rtentry *rt = (struct rtentry *)rn; + struct ifnet *ifp = arg; + int err; - if (rt == NULL) - return (0); + if (rt == NULL) { + return 0; + } /* * Checking against RTF_UP protects against walktree * recursion problems with cloned routes. @@ -3794,7 +5093,7 @@ if_rtdel(struct radix_node *rn, void *arg) } else { RT_UNLOCK(rt); } - return (0); + return 0; } /* @@ -3807,7 +5106,7 @@ if_rtproto_del(struct ifnet *ifp, int protocol) struct radix_node_head *rnh; if ((protocol <= AF_MAX) && (protocol >= 0) && - ((rnh = rt_tables[protocol]) != NULL) && (ifp != NULL)) { + ((rnh = rt_tables[protocol]) != NULL) && (ifp != NULL)) { lck_mtx_lock(rnh_lock); (void) rnh->rnh_walktree(rnh, if_rtdel, ifp); lck_mtx_unlock(rnh_lock); @@ -3827,12 +5126,19 @@ if_rtmtu(struct radix_node *rn, void *arg) * has not been locked (RTV_MTU is not set) and * if it was non-zero to begin with. */ - if (!(rt->rt_rmx.rmx_locks & RTV_MTU) && rt->rt_rmx.rmx_mtu) + if (!(rt->rt_rmx.rmx_locks & RTV_MTU) && rt->rt_rmx.rmx_mtu) { rt->rt_rmx.rmx_mtu = ifp->if_mtu; + if (rt_key(rt)->sa_family == AF_INET && + INTF_ADJUST_MTU_FOR_CLAT46(ifp)) { + rt->rt_rmx.rmx_mtu = IN6_LINKMTU(ifp); + /* Further adjust the size for CLAT46 expansion */ + rt->rt_rmx.rmx_mtu -= CLAT46_HDR_EXPANSION_OVERHD; + } + } } RT_UNLOCK(rt); - return (0); + return 0; } /* @@ -3840,15 +5146,16 @@ if_rtmtu(struct radix_node *rn, void *arg) * associated with a particular interface; this is called when the * MTU of that interface has changed. */ -static -void if_rtmtu_update(struct ifnet *ifp) +static void +if_rtmtu_update(struct ifnet *ifp) { struct radix_node_head *rnh; int p; for (p = 0; p < AF_MAX + 1; p++) { - if ((rnh = rt_tables[p]) == NULL) + if ((rnh = rt_tables[p]) == NULL) { continue; + } lck_mtx_lock(rnh_lock); (void) rnh->rnh_walktree(rnh, if_rtmtu, ifp); @@ -3862,12 +5169,12 @@ if_data_internal_to_if_data(struct ifnet *ifp, const struct if_data_internal *if_data_int, struct if_data *if_data) { #pragma unused(ifp) -#define COPYFIELD(fld) if_data->fld = if_data_int->fld -#define COPYFIELD32(fld) if_data->fld = (u_int32_t)(if_data_int->fld) +#define COPYFIELD(fld) if_data->fld = if_data_int->fld +#define COPYFIELD32(fld) if_data->fld = (u_int32_t)(if_data_int->fld) /* compiler will cast down to 32-bit */ -#define COPYFIELD32_ATOMIC(fld) do { \ - atomic_get_64(if_data->fld, \ - (u_int64_t *)(void *)(uintptr_t)&if_data_int->fld); \ +#define COPYFIELD32_ATOMIC(fld) do { \ + atomic_get_64(if_data->fld, \ + (u_int64_t *)(void *)(uintptr_t)&if_data_int->fld); \ } while (0) COPYFIELD(ifi_type); @@ -3921,10 +5228,10 @@ if_data_internal_to_if_data64(struct ifnet *ifp, struct if_data64 *if_data64) { #pragma unused(ifp) -#define COPYFIELD64(fld) if_data64->fld = if_data_int->fld -#define COPYFIELD64_ATOMIC(fld) do { \ - atomic_get_64(if_data64->fld, \ - (u_int64_t *)(void *)(uintptr_t)&if_data_int->fld); \ +#define COPYFIELD64(fld) if_data64->fld = if_data_int->fld +#define COPYFIELD64_ATOMIC(fld) do { \ + atomic_get_64(if_data64->fld, \ + (u_int64_t *)(void *)(uintptr_t)&if_data_int->fld); \ } while (0) COPYFIELD64(ifi_type); @@ -3951,8 +5258,9 @@ if_data_internal_to_if_data64(struct ifnet *ifp, COPYFIELD64_ATOMIC(ifi_iqdrops); COPYFIELD64_ATOMIC(ifi_noproto); - /* Note these two fields are actually 32 bit, so doing COPYFIELD64_ATOMIC will - * cause them to be misaligned + /* + * Note these two fields are actually 32 bit, so doing + * COPYFIELD64_ATOMIC will cause them to be misaligned */ COPYFIELD64(ifi_recvtiming); COPYFIELD64(ifi_xmittiming); @@ -3969,12 +5277,12 @@ __private_extern__ void if_copy_traffic_class(struct ifnet *ifp, struct if_traffic_class *if_tc) { -#define COPY_IF_TC_FIELD64_ATOMIC(fld) do { \ - atomic_get_64(if_tc->fld, \ - (u_int64_t *)(void *)(uintptr_t)&ifp->if_tc.fld); \ +#define COPY_IF_TC_FIELD64_ATOMIC(fld) do { \ + atomic_get_64(if_tc->fld, \ + (u_int64_t *)(void *)(uintptr_t)&ifp->if_tc.fld); \ } while (0) - bzero(if_tc, sizeof (*if_tc)); + bzero(if_tc, sizeof(*if_tc)); COPY_IF_TC_FIELD64_ATOMIC(ifi_ibepackets); COPY_IF_TC_FIELD64_ATOMIC(ifi_ibebytes); COPY_IF_TC_FIELD64_ATOMIC(ifi_obepackets); @@ -4002,12 +5310,12 @@ if_copy_traffic_class(struct ifnet *ifp, void if_copy_data_extended(struct ifnet *ifp, struct if_data_extended *if_de) { -#define COPY_IF_DE_FIELD64_ATOMIC(fld) do { \ - atomic_get_64(if_de->fld, \ - (u_int64_t *)(void *)(uintptr_t)&ifp->if_data.fld); \ +#define COPY_IF_DE_FIELD64_ATOMIC(fld) do { \ + atomic_get_64(if_de->fld, \ + (u_int64_t *)(void *)(uintptr_t)&ifp->if_data.fld); \ } while (0) - bzero(if_de, sizeof (*if_de)); + bzero(if_de, sizeof(*if_de)); COPY_IF_DE_FIELD64_ATOMIC(ifi_alignerrs); COPY_IF_DE_FIELD64_ATOMIC(ifi_dt_bytes); COPY_IF_DE_FIELD64_ATOMIC(ifi_fpackets); @@ -4019,14 +5327,14 @@ if_copy_data_extended(struct ifnet *ifp, struct if_data_extended *if_de) void if_copy_packet_stats(struct ifnet *ifp, struct if_packet_stats *if_ps) { -#define COPY_IF_PS_TCP_FIELD64_ATOMIC(fld) do { \ - atomic_get_64(if_ps->ifi_tcp_##fld, \ - (u_int64_t *)(void *)(uintptr_t)&ifp->if_tcp_stat->fld); \ +#define COPY_IF_PS_TCP_FIELD64_ATOMIC(fld) do { \ + atomic_get_64(if_ps->ifi_tcp_##fld, \ + (u_int64_t *)(void *)(uintptr_t)&ifp->if_tcp_stat->fld); \ } while (0) -#define COPY_IF_PS_UDP_FIELD64_ATOMIC(fld) do { \ - atomic_get_64(if_ps->ifi_udp_##fld, \ - (u_int64_t *)(void *)(uintptr_t)&ifp->if_udp_stat->fld); \ +#define COPY_IF_PS_UDP_FIELD64_ATOMIC(fld) do { \ + atomic_get_64(if_ps->ifi_udp_##fld, \ + (u_int64_t *)(void *)(uintptr_t)&ifp->if_udp_stat->fld); \ } while (0) COPY_IF_PS_TCP_FIELD64_ATOMIC(badformat); @@ -4060,33 +5368,40 @@ if_copy_packet_stats(struct ifnet *ifp, struct if_packet_stats *if_ps) void if_copy_rxpoll_stats(struct ifnet *ifp, struct if_rxpoll_stats *if_rs) { - bzero(if_rs, sizeof (*if_rs)); - if (!(ifp->if_eflags & IFEF_RXPOLL) || !ifnet_is_attached(ifp, 1)) + bzero(if_rs, sizeof(*if_rs)); + if (!(ifp->if_eflags & IFEF_RXPOLL) || !ifnet_is_attached(ifp, 1)) { return; - - /* by now, ifnet will stay attached so if_inp must be valid */ - VERIFY(ifp->if_inp != NULL); - bcopy(&ifp->if_inp->pstats, if_rs, sizeof (*if_rs)); - + } + bcopy(&ifp->if_poll_pstats, if_rs, sizeof(*if_rs)); /* Release the IO refcnt */ ifnet_decr_iorefcnt(ifp); } +void +if_copy_netif_stats(struct ifnet *ifp, struct if_netif_stats *if_ns) +{ + bzero(if_ns, sizeof(*if_ns)); +#pragma unused(ifp) +} + struct ifaddr * ifa_remref(struct ifaddr *ifa, int locked) { - if (!locked) + if (!locked) { IFA_LOCK_SPIN(ifa); - else + } else { IFA_LOCK_ASSERT_HELD(ifa); + } - if (ifa->ifa_refcnt == 0) + if (ifa->ifa_refcnt == 0) { panic("%s: ifa %p negative refcnt\n", __func__, ifa); - else if (ifa->ifa_trace != NULL) + } else if (ifa->ifa_trace != NULL) { (*ifa->ifa_trace)(ifa, FALSE); + } if (--ifa->ifa_refcnt == 0) { - if (ifa->ifa_debug & IFD_ATTACHED) + if (ifa->ifa_debug & IFD_ATTACHED) { panic("ifa %p attached to ifp is being freed\n", ifa); + } /* * Some interface addresses are allocated either statically * or carved out of a larger block. Only free it if it was @@ -4109,19 +5424,21 @@ ifa_remref(struct ifaddr *ifa, int locked) ifa = NULL; } - if (!locked && ifa != NULL) + if (!locked && ifa != NULL) { IFA_UNLOCK(ifa); + } - return (ifa); + return ifa; } void ifa_addref(struct ifaddr *ifa, int locked) { - if (!locked) + if (!locked) { IFA_LOCK_SPIN(ifa); - else + } else { IFA_LOCK_ASSERT_HELD(ifa); + } if (++ifa->ifa_refcnt == 0) { panic("%s: ifa %p wraparound refcnt\n", __func__, ifa); @@ -4129,8 +5446,9 @@ ifa_addref(struct ifaddr *ifa, int locked) } else if (ifa->ifa_trace != NULL) { (*ifa->ifa_trace)(ifa, TRUE); } - if (!locked) + if (!locked) { IFA_UNLOCK(ifa); + } } void @@ -4171,7 +5489,6 @@ ifioctl_cassert(void) case SIOCGPPPSTATS: case SIOCGPPPCSTATS: -#if INET6 /* bsd/netinet6/in6_var.h */ case SIOCSIFADDR_IN6: case SIOCGIFADDR_IN6: @@ -4225,9 +5542,11 @@ ifioctl_cassert(void) case SIOCAUTOCONF_START: case SIOCAUTOCONF_STOP: case SIOCSETROUTERMODE_IN6: + case SIOCGETROUTERMODE_IN6: case SIOCLL_CGASTART_32: case SIOCLL_CGASTART_64: -#endif /* INET6 */ + case SIOCGIFCGAPREP_IN6: + case SIOCSIFCGAPREP_IN6: /* bsd/sys/sockio.h */ case SIOCSIFADDR: @@ -4246,6 +5565,7 @@ ifioctl_cassert(void) case SIOCSIFMETRIC: case SIOCDIFADDR: case SIOCAIFADDR: + case SIOCGIFADDR: case SIOCGIFDSTADDR: case SIOCGIFBRDADDR: @@ -4255,6 +5575,7 @@ ifioctl_cassert(void) case SIOCAUTOADDR: case SIOCAUTONETMASK: case SIOCARPIPLL: + case SIOCADDMULTI: case SIOCDELMULTI: case SIOCGIFMTU: @@ -4264,48 +5585,58 @@ ifioctl_cassert(void) case SIOCSIFMEDIA: case SIOCGIFMEDIA32: case SIOCGIFMEDIA64: + case SIOCGIFXMEDIA32: + case SIOCGIFXMEDIA64: case SIOCSIFGENERIC: case SIOCGIFGENERIC: case SIOCRSLVMULTI: + case SIOCSIFLLADDR: case SIOCGIFSTATUS: case SIOCSIFPHYADDR: case SIOCGIFPSRCADDR: case SIOCGIFPDSTADDR: case SIOCDIFPHYADDR: + case SIOCGIFDEVMTU: case SIOCSIFALTMTU: case SIOCGIFALTMTU: case SIOCSIFBOND: case SIOCGIFBOND: + case SIOCPROTOATTACH: case SIOCPROTODETACH: + case SIOCSIFCAP: case SIOCGIFCAP: + case SIOCIFCREATE: case SIOCIFDESTROY: case SIOCIFCREATE2: + case SIOCSDRVSPEC32: case SIOCGDRVSPEC32: case SIOCSDRVSPEC64: case SIOCGDRVSPEC64: + case SIOCSIFVLAN: case SIOCGIFVLAN: + case SIOCIFGCLONERS32: case SIOCIFGCLONERS64: + case SIOCGIFASYNCMAP: case SIOCSIFASYNCMAP: -#if CONFIG_MACF_NET - case SIOCGIFMAC: - case SIOCSIFMAC: -#endif /* CONFIG_MACF_NET */ case SIOCSIFKPI: case SIOCGIFKPI: + case SIOCGIFWAKEFLAGS: + case SIOCGIFGETRTREFCNT: case SIOCGIFLINKQUALITYMETRIC: case SIOCSIFOPPORTUNISTIC: case SIOCGIFOPPORTUNISTIC: + case SIOCGETROUTERMODE: case SIOCSETROUTERMODE: case SIOCGIFEFLAGS: case SIOCSIFDESC: @@ -4315,24 +5646,166 @@ ifioctl_cassert(void) case SIOCGIFQUEUESTATS: case SIOCSIFTHROTTLE: case SIOCGIFTHROTTLE: + + case SIOCGASSOCIDS32: + case SIOCGASSOCIDS64: + case SIOCGCONNIDS32: + case SIOCGCONNIDS64: + case SIOCGCONNINFO32: + case SIOCGCONNINFO64: + case SIOCSCONNORDER: + case SIOCGCONNORDER: + case SIOCSIFLOG: case SIOCGIFLOG: case SIOCGIFDELEGATE: case SIOCGIFLLADDR: case SIOCGIFTYPE: - case SIOCGIFFUNCTIONALTYPE: + case SIOCGIFEXPENSIVE: + case SIOCSIFEXPENSIVE: + case SIOCGIF2KCL: + case SIOCSIF2KCL: + case SIOCGSTARTDELAY: + case SIOCAIFAGENTID: case SIOCDIFAGENTID: case SIOCGIFAGENTIDS32: case SIOCGIFAGENTIDS64: case SIOCGIFAGENTDATA32: case SIOCGIFAGENTDATA64: + case SIOCSIFINTERFACESTATE: case SIOCGIFINTERFACESTATE: case SIOCSIFPROBECONNECTIVITY: case SIOCGIFPROBECONNECTIVITY: + + case SIOCGIFFUNCTIONALTYPE: + case SIOCSIFNETSIGNATURE: + case SIOCGIFNETSIGNATURE: + + case SIOCSIFNETWORKID: case SIOCGECNMODE: case SIOCSECNMODE: + + case SIOCSIFORDER: + + case SIOCSQOSMARKINGMODE: + case SIOCSQOSMARKINGENABLED: + case SIOCGQOSMARKINGMODE: + case SIOCGQOSMARKINGENABLED: + + case SIOCSIFTIMESTAMPENABLE: + case SIOCSIFTIMESTAMPDISABLE: + case SIOCGIFTIMESTAMPENABLED: + + case SIOCSIFDISABLEOUTPUT: + + case SIOCSIFSUBFAMILY: + + case SIOCGIFAGENTLIST32: + case SIOCGIFAGENTLIST64: + + case SIOCSIFLOWINTERNET: + case SIOCGIFLOWINTERNET: + + case SIOCGIFNAT64PREFIX: + case SIOCSIFNAT64PREFIX: + + case SIOCGIFCLAT46ADDR: + + case SIOCGIFPROTOLIST32: + case SIOCGIFPROTOLIST64: + + case SIOCSIF6LOWPAN: + case SIOCGIF6LOWPAN: + + case SIOCGIFLOWPOWER: + case SIOCSIFLOWPOWER: + + case SIOCGIFMPKLOG: + case SIOCSIFMPKLOG: + + case SIOCGIFCONSTRAINED: + case SIOCSIFCONSTRAINED: + + case SIOCGIFXFLAGS: + + case SIOCGIFNOACKPRIO: + case SIOCSIFNOACKPRIO: ; } } + +uint32_t +ifnet_mbuf_packetpreamblelen(struct ifnet *ifp) +{ +#pragma unused(ifp) + return 0; +} + +/* The following is used to enqueue work items for interface events */ +struct intf_event { + struct ifnet *ifp; + union sockaddr_in_4_6 addr; + uint32_t intf_event_code; +}; + +static void +intf_event_callback(void *arg) +{ + struct intf_event *p_intf_ev = (struct intf_event *)arg; + + /* Call this before we walk the tree */ + EVENTHANDLER_INVOKE(&ifnet_evhdlr_ctxt, ifnet_event, p_intf_ev->ifp, + (struct sockaddr *)&(p_intf_ev->addr), p_intf_ev->intf_event_code); +} + +struct intf_event_nwk_wq_entry { + struct nwk_wq_entry nwk_wqe; + struct intf_event intf_ev_arg; +}; + +void +intf_event_enqueue_nwk_wq_entry(struct ifnet *ifp, struct sockaddr *addrp, + uint32_t intf_event_code) +{ +#pragma unused(addrp) + struct intf_event_nwk_wq_entry *p_intf_ev = NULL; + + MALLOC(p_intf_ev, struct intf_event_nwk_wq_entry *, + sizeof(struct intf_event_nwk_wq_entry), + M_NWKWQ, M_WAITOK | M_ZERO); + + p_intf_ev->intf_ev_arg.ifp = ifp; + /* + * XXX Not using addr in the arg. This will be used + * once we need IP address add/delete events + */ + p_intf_ev->intf_ev_arg.intf_event_code = intf_event_code; + p_intf_ev->nwk_wqe.func = intf_event_callback; + p_intf_ev->nwk_wqe.is_arg_managed = TRUE; + p_intf_ev->nwk_wqe.arg = &p_intf_ev->intf_ev_arg; + nwk_wq_enqueue((struct nwk_wq_entry*)p_intf_ev); +} + +int +if_get_tcp_kao_max(struct ifnet *ifp) +{ + int error = 0; + + if (ifp->if_tcp_kao_max == 0) { + struct ifreq ifr; + + memset(&ifr, 0, sizeof(struct ifreq)); + error = ifnet_ioctl(ifp, 0, SIOCGIFTCPKAOMAX, &ifr); + + ifnet_lock_exclusive(ifp); + if (error == 0) { + ifp->if_tcp_kao_max = ifr.ifr_tcp_kao_max; + } else if (error == EOPNOTSUPP) { + ifp->if_tcp_kao_max = default_tcp_kao_max; + } + ifnet_lock_done(ifp); + } + return error; +}