/*
- * Copyright (c) 2013 Apple Inc. All rights reserved.
+ * Copyright (c) 2013-2016 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <netinet6/ip6_var.h>
#include <netinet6/nd6.h>
-SYSCTL_DECL(_net_inet6); /* Note: Not in any common header. */
+#if CONFIG_MACF
+#include <sys/kauth.h>
+#include <security/mac_framework.h>
+#endif
-SYSCTL_NODE(_net_inet6, OID_AUTO, send, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
- "IPv6 Secure Neighbor Discovery");
+SYSCTL_DECL(_net_inet6); /* Note: Not in any common header. */
-static int nd6_send_opmode = ND6_SEND_OPMODE_DISABLED;
+SYSCTL_NODE(_net_inet6, OID_AUTO, send, CTLFLAG_RW | CTLFLAG_LOCKED, 0,
+ "IPv6 Secure Neighbor Discovery");
-SYSCTL_INT(_net_inet6_send, OID_AUTO, opstate, CTLFLAG_RD | CTLFLAG_LOCKED,
- &nd6_send_opstate, 0, "current SEND operating state");
+static int nd6_send_opmode = ND6_SEND_OPMODE_CGA_QUIET;
+SYSCTL_INT(_net_inet6_send, OID_AUTO, opmode, CTLFLAG_RW | CTLFLAG_LOCKED,
+ &nd6_send_opmode, 0, "configured SEND operating mode");
int nd6_send_opstate = ND6_SEND_OPMODE_DISABLED;
-SYSCTL_INT(_net_inet6_send, OID_AUTO, opmode, CTLFLAG_RW | CTLFLAG_LOCKED,
- &nd6_send_opmode, 0, "configured SEND operating mode");
+SYSCTL_INT(_net_inet6_send, OID_AUTO, opstate, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &nd6_send_opstate, 0, "current SEND operating state");
static int sysctl_cga_parameters SYSCTL_HANDLER_ARGS;
SYSCTL_PROC(_net_inet6_send, OID_AUTO, cga_parameters,
- CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0,
- sysctl_cga_parameters, "S,nd6_send_nodecfg", "");
+ CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_LOCKED, 0, 0,
+ sysctl_cga_parameters, "S,nd6_send_nodecfg", "");
/*
* The size of the buffer is sufficient to contain a public key, its size in
* scope. This interface is not a public API, so we don't anticipate that the
* userland and the kernel will be mismatched between ILP32 and LP64.
*/
-#define SYSCTL_CGA_PARAMETERS_BUFFER_SIZE \
- 2 * (sizeof (u_int16_t) + IN6_CGA_KEY_MAXSIZE) + \
- sizeof (struct in6_cga_prepare)
+#define SYSCTL_CGA_PARAMETERS_BUFFER_SIZE \
+ (2 * (sizeof (u_int16_t) + IN6_CGA_KEY_MAXSIZE) + \
+ sizeof (struct in6_cga_prepare))
static int
sysctl_cga_parameters SYSCTL_HANDLER_ARGS
int error;
char *buffer;
u_int16_t u16;
+#if CONFIG_MACF
+ kauth_cred_t cred;
+#endif
namelen = arg2;
if (namelen != 0) {
log(LOG_ERR, "%s: name length err [len=%u]\n", __func__,
namelen);
- return (EINVAL);
+ return EINVAL;
}
if (req->newlen > SYSCTL_CGA_PARAMETERS_BUFFER_SIZE) {
log(LOG_ERR, "%s: input buffer size error [len=%u]\n", __func__,
req->newlen);
- return (EINVAL);
+ return EINVAL;
+ }
+
+#if CONFIG_MACF
+ cred = kauth_cred_proc_ref(current_proc());
+ error = mac_system_check_info(cred, "net.inet6.send.cga_parameters");
+ kauth_cred_unref(&cred);
+ if (error != 0) {
+ log(LOG_ERR, "%s: mac_system_check_info denied.\n", __func__);
+ return EPERM;
}
+#endif
MALLOC(buffer, char *, SYSCTL_CGA_PARAMETERS_BUFFER_SIZE, M_IP6CGA,
- M_WAITOK);
+ M_WAITOK | M_ZERO);
if (buffer == NULL) {
log(LOG_ERR, "%s: could not allocate marshaling buffer.\n",
__func__);
- return (ENOMEM);
+ return ENOMEM;
}
in6_cga_node_lock();
if (req->oldptr != USER_ADDR_NULL && req->oldlen > 0) {
oldp = buffer;
fin = &buffer[SYSCTL_CGA_PARAMETERS_BUFFER_SIZE];
- if (req->oldlen < SYSCTL_CGA_PARAMETERS_BUFFER_SIZE)
+ if (req->oldlen < SYSCTL_CGA_PARAMETERS_BUFFER_SIZE) {
fin = &buffer[req->oldlen];
+ }
in6_cga_query(&cfg);
iov = &cfg.cga_pubkey;
if (iov->iov_len > 0) {
VERIFY(iov->iov_len < UINT16_MAX);
- if (&oldp[sizeof (cfg.cga_prepare)] <= fin)
+ if (&oldp[sizeof(cfg.cga_prepare)] <= fin) {
bcopy(&cfg.cga_prepare, oldp,
- sizeof (cfg.cga_prepare));
- oldp += sizeof (cfg.cga_prepare);
+ sizeof(cfg.cga_prepare));
+ }
+ oldp += sizeof(cfg.cga_prepare);
- if (&oldp[sizeof (u16)] < fin) {
+ if (&oldp[sizeof(u16)] < fin) {
u16 = (u_int16_t) iov->iov_len;
- bcopy(&u16, oldp, sizeof (u16));
+ bcopy(&u16, oldp, sizeof(u16));
}
- oldp += sizeof (u16);
+ oldp += sizeof(u16);
- if (&oldp[iov->iov_len] < fin)
+ if (&oldp[iov->iov_len] < fin) {
bcopy(iov->iov_base, oldp, iov->iov_len);
+ }
oldp += iov->iov_len;
if (oldp > fin) {
}
error = SYSCTL_OUT(req, buffer, oldp - buffer);
- if (error)
+ if (error) {
goto done;
+ }
}
- if (req->newptr == USER_ADDR_NULL)
+ if (req->newptr == USER_ADDR_NULL) {
goto done;
+ }
error = proc_suser(current_proc());
- if (error)
+ if (error) {
goto done;
+ }
if (req->newlen == 0) {
in6_cga_stop();
}
error = SYSCTL_IN(req, buffer, req->newlen);
- if (error)
+ if (error) {
goto done;
+ }
newp = buffer;
fin = &buffer[req->newlen];
bzero(&cfg, sizeof cfg);
- if (&newp[sizeof (cfg.cga_prepare)] <= fin)
- bcopy(newp, &cfg.cga_prepare, sizeof (cfg.cga_prepare));
- newp += sizeof (cfg.cga_prepare);
+ if (&newp[sizeof(cfg.cga_prepare)] <= fin) {
+ bcopy(newp, &cfg.cga_prepare, sizeof(cfg.cga_prepare));
+ }
+ newp += sizeof(cfg.cga_prepare);
iov = &cfg.cga_privkey;
- if (&newp[sizeof (u16)] < fin) {
- bcopy(newp, &u16, sizeof (u16));
+ if (&newp[sizeof(u16)] < fin) {
+ bcopy(newp, &u16, sizeof(u16));
iov->iov_len = u16;
if (iov->iov_len > IN6_CGA_KEY_MAXSIZE) {
goto done;
}
}
- newp += sizeof (u16);
+ newp += sizeof(u16);
iov->iov_base = newp;
newp += iov->iov_len;
iov = &cfg.cga_pubkey;
- if (&newp[sizeof (u16)] < fin) {
- bcopy(newp, &u16, sizeof (u16));
+ if (&newp[sizeof(u16)] < fin) {
+ bcopy(newp, &u16, sizeof(u16));
iov->iov_len = u16;
if (iov->iov_len > IN6_CGA_KEY_MAXSIZE) {
goto done;
}
}
- newp += sizeof (u16);
+ newp += sizeof(u16);
iov->iov_base = newp;
newp += iov->iov_len;
}
error = in6_cga_start(&cfg);
- if (!error)
+ if (!error) {
nd6_send_opstate = nd6_send_opmode;
- else
+ } else {
log(LOG_ERR, "%s: in6_cga_start error=%d.\n", __func__,
error);
+ }
done:
in6_cga_node_unlock();
FREE(buffer, M_IP6CGA);
- return (error);
+ return error;
}
/* End of file */
projects / apple / xnu.git / blobdiff