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[apple/xnu.git] / bsd / kern / socket_info.c
diff --git a/bsd/kern/socket_info.c b/bsd/kern/socket_info.c
new file mode 100644 (file)
index 0000000..179f951
--- /dev/null
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+/*
+ * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ *
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <sys/types.h>
+#include <sys/kernel_types.h>
+#include <sys/errno.h>
+#include <sys/kernel.h>
+#include <sys/file_internal.h>
+#include <sys/stat.h>
+#include <sys/select.h>
+#include <sys/pipe.h>
+#include <sys/proc_info.h>
+#include <sys/domain.h>
+#include <sys/protosw.h>
+#include <sys/domain.h>
+#include <sys/socketvar.h>
+#include <sys/unpcb.h>
+#include <sys/sys_domain.h>
+#include <sys/kern_event.h>
+#include <net/ndrv_var.h>
+#include <netinet/in_pcb.h>
+#include <netinet/tcp_var.h>
+#include <string.h>
+
+static void fill_sockbuf_info(struct sockbuf *sb, struct sockbuf_info *sbi);
+static void fill_common_sockinfo(struct socket *so, struct socket_info *si);
+
+static void
+fill_sockbuf_info(struct sockbuf *sb, struct sockbuf_info *sbi)
+{
+       sbi->sbi_cc = sb->sb_cc;
+       sbi->sbi_hiwat = sb->sb_hiwat;
+       sbi->sbi_mbcnt = sb->sb_mbcnt;
+       sbi->sbi_mbmax = sb->sb_mbmax;
+       sbi->sbi_lowat = sb->sb_lowat;
+       sbi->sbi_flags = sb->sb_flags;
+       sbi->sbi_timeo = (u_long)(sb->sb_timeo.tv_sec * hz) + sb->sb_timeo.tv_usec / tick;
+       if (sbi->sbi_timeo == 0 && sb->sb_timeo.tv_usec != 0)
+               sbi->sbi_timeo = 1;
+}
+
+static void
+fill_common_sockinfo(struct socket *so, struct socket_info *si)
+{
+       si->soi_so = (u_int64_t)((uintptr_t)so);
+       si->soi_type = so->so_type;
+       si->soi_options = so->so_options;
+       si->soi_linger = so->so_linger;
+       si->soi_state = so->so_state;
+       si->soi_pcb = (u_int64_t)((uintptr_t)so->so_pcb);
+       if (so->so_proto) {
+               si->soi_protocol = so->so_proto->pr_protocol;
+               if (so->so_proto->pr_domain)
+                       si->soi_family = so->so_proto->pr_domain->dom_family;
+               else
+                       si->soi_family = 0;
+       } else
+               si->soi_protocol = si->soi_family = 0;
+       si->soi_qlen = so->so_qlen;
+       si->soi_incqlen = so->so_incqlen;
+       si->soi_qlimit = so->so_qlimit;
+       si->soi_timeo = so->so_timeo;
+       si->soi_error = so->so_error;
+       si->soi_oobmark = so->so_oobmark;
+       fill_sockbuf_info(&so->so_snd, &si->soi_snd);
+       fill_sockbuf_info(&so->so_rcv, &si->soi_rcv);
+       
+}
+
+errno_t
+fill_socketinfo(struct socket *so, struct socket_info *si)
+{
+       errno_t error = 0;
+       int family;
+       short type;
+       short protocol;
+               
+       socket_lock(so, 0);
+
+       si->soi_kind = SOCKINFO_GENERIC;
+
+       fill_common_sockinfo(so, si);
+
+       if (so->so_pcb == 0 || so->so_proto == 0 || so->so_proto->pr_domain == 0)
+               goto out;
+
+       /* The kind of socket is determined by the triplet {family, type, protocol} */
+       family = so->so_proto->pr_domain->dom_family;
+       type =  so->so_proto->pr_type;
+       protocol =  so->so_proto->pr_protocol;
+       switch (family) {
+               case AF_INET: 
+               case AF_INET6: {
+                       struct in_sockinfo *insi = &si->soi_proto.pri_in;
+                       struct inpcb *inp = (struct inpcb *)so->so_pcb;
+                       
+                       si->soi_kind = SOCKINFO_IN;
+                       
+                       insi->insi_fport = inp->inp_fport;
+                       insi->insi_lport = inp->inp_lport;
+                       insi->insi_gencnt = inp->inp_gencnt;
+                       insi->insi_flags = inp->inp_flags;
+                       insi->insi_vflag = inp->inp_vflag;
+                       insi->insi_ip_ttl = inp->inp_ip_ttl;
+                       insi->insi_faddr.ina_6 = inp->inp_dependfaddr.inp6_foreign;
+                       insi->insi_laddr.ina_6 = inp->inp_dependladdr.inp6_local;
+                       insi->insi_v4.in4_tos = inp->inp_depend4.inp4_ip_tos;
+                       insi->insi_v6.in6_hlim = inp->inp_depend6.inp6_hlim;
+                       insi->insi_v6.in6_cksum = inp->inp_depend6.inp6_cksum;
+                       insi->insi_v6.in6_ifindex = inp->inp6_ifindex;
+                       insi->insi_v6.in6_hops = inp->inp_depend6.inp6_hops;
+
+                       if (type == SOCK_STREAM && (protocol == 0 || protocol == IPPROTO_TCP) && inp->inp_ppcb != 0) {
+                               struct tcp_sockinfo *tcpsi = &si->soi_proto.pri_tcp;
+                               struct tcpcb *tp= (struct tcpcb *)inp->inp_ppcb;
+                               
+                               si->soi_kind = SOCKINFO_TCP;
+
+                               tcpsi->tcpsi_state = tp->t_state;
+                               tcpsi->tcpsi_timer[TCPT_REXMT] = tp->t_timer[TCPT_REXMT];
+                               tcpsi->tcpsi_timer[TCPT_PERSIST] = tp->t_timer[TCPT_PERSIST];
+                               tcpsi->tcpsi_timer[TCPT_KEEP] = tp->t_timer[TCPT_KEEP];
+                               tcpsi->tcpsi_timer[TCPT_2MSL] = tp->t_timer[TCPT_2MSL];
+                               tcpsi->tcpsi_mss = tp->t_maxseg;
+                               tcpsi->tcpsi_flags = tp->t_flags;
+                               tcpsi->tcpsi_tp = (u_int64_t)((uintptr_t)tp);
+                       }
+                       break;
+               }
+               case AF_UNIX: {
+                       struct unpcb *unp = (struct unpcb *)so->so_pcb;
+                       struct un_sockinfo *unsi = &si->soi_proto.pri_un;
+                       
+                       si->soi_kind = SOCKINFO_UN;
+                       
+                       unsi->unsi_conn_pcb = (uint64_t)((uintptr_t)unp->unp_conn);
+                       if (unp->unp_conn)
+                               unsi->unsi_conn_so = (uint64_t)((uintptr_t)unp->unp_conn->unp_socket);
+                               
+                       
+                       if (unp->unp_addr) {
+                               size_t  addrlen = unp->unp_addr->sun_len;
+                               
+                               if (addrlen > SOCK_MAXADDRLEN)
+                                       addrlen = SOCK_MAXADDRLEN;
+                               bcopy(unp->unp_addr, &unsi->unsi_addr, addrlen);
+                       }
+                       if (unp->unp_conn && unp->unp_conn->unp_addr) {
+                               size_t  addrlen = unp->unp_conn->unp_addr->sun_len;
+                               
+                               if (addrlen > SOCK_MAXADDRLEN)
+                                       addrlen = SOCK_MAXADDRLEN;
+                               bcopy(unp->unp_conn->unp_addr, &unsi->unsi_caddr, addrlen);
+                       }
+                       break;
+               }
+               case AF_NDRV: {
+                       struct ndrv_cb *ndrv_cb = (struct ndrv_cb *)so->so_pcb;
+                       struct ndrv_info *ndrvsi = &si->soi_proto.pri_ndrv;
+
+                       si->soi_kind = SOCKINFO_NDRV;
+
+                       /* TDB lock ifnet ???? */
+                       if (ndrv_cb->nd_if != 0) {
+                               struct ifnet *ifp = ndrv_cb->nd_if;
+                               
+                               ndrvsi->ndrvsi_if_family = ifp->if_family;
+                               ndrvsi->ndrvsi_if_unit = ifp->if_unit;
+                               strncpy(ndrvsi->ndrvsi_if_name, ifp->if_name, IFNAMSIZ);
+                       }
+
+                       break;
+               }
+               case AF_SYSTEM:
+                       if (so->so_proto->pr_protocol == SYSPROTO_EVENT) {
+                               struct kern_event_pcb *ev_pcb = (struct kern_event_pcb *)so->so_pcb;
+                               struct kern_event_info *kesi = &si->soi_proto.pri_kern_event;
+                               
+                               si->soi_kind = SOCKINFO_KERN_EVENT;
+                               
+                               kesi->kesi_vendor_code_filter = ev_pcb->vendor_code_filter;
+                               kesi->kesi_class_filter = ev_pcb->class_filter;
+                               kesi->kesi_subclass_filter = ev_pcb->subclass_filter;
+                               
+                       } else if (so->so_proto->pr_protocol == SYSPROTO_CONTROL) {
+                               struct ctl_cb *kcb = (struct ctl_cb *)so->so_pcb;
+                               struct kern_ctl_info *kcsi = &si->soi_proto.pri_kern_ctl;
+                               struct kctl *kctl = kcb->kctl;
+                               
+                               
+                               si->soi_kind = SOCKINFO_KERN_CTL;
+                               
+                               if (kctl == 0)
+                                       break;
+                               kcsi->kcsi_id = kctl->id;
+                               kcsi->kcsi_reg_unit = kctl->id;
+                               kcsi->kcsi_flags = kctl->flags;
+                               kcsi->kcsi_recvbufsize = kctl->recvbufsize;
+                               kcsi->kcsi_sendbufsize = kctl->sendbufsize;
+                               kcsi->kcsi_unit = kcb->unit;
+                               strncpy(kcsi->kcsi_name, kctl->name, MAX_KCTL_NAME);
+                       }
+                       break;
+
+               case AF_APPLETALK:
+                       break;
+                       
+               case AF_ROUTE:
+                       break;
+
+               case AF_PPP:
+                       break;
+               
+               default:
+                       break;
+       }
+out:   
+       socket_unlock(so, 0);
+       
+       return error;
+}
+