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-rw-r--r--lib/sockopt.c910
1 files changed, 453 insertions, 457 deletions
diff --git a/lib/sockopt.c b/lib/sockopt.c
index 2a9f907cb3..6ef93ce916 100644
--- a/lib/sockopt.c
+++ b/lib/sockopt.c
@@ -16,7 +16,7 @@
* You should have received a copy of the GNU General Public License
* along with GNU Zebra; see the file COPYING. If not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
+ * 02111-1307, USA.
*/
#include <zebra.h>
@@ -29,173 +29,168 @@
#include "sockopt.h"
#include "sockunion.h"
-void
-setsockopt_so_recvbuf (int sock, int size)
+void setsockopt_so_recvbuf(int sock, int size)
{
- int orig_req = size;
+ int orig_req = size;
- while (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, &size, sizeof (size)) == -1)
- size /= 2;
+ while (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size))
+ == -1)
+ size /= 2;
- if (size != orig_req)
- zlog_warn ("%s: fd %d: SO_RCVBUF set to %d (requested %d)", __func__, sock,
- size, orig_req);
+ if (size != orig_req)
+ zlog_warn("%s: fd %d: SO_RCVBUF set to %d (requested %d)",
+ __func__, sock, size, orig_req);
}
-void
-setsockopt_so_sendbuf (const int sock, int size)
+void setsockopt_so_sendbuf(const int sock, int size)
{
- int orig_req = size;
+ int orig_req = size;
- while (setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &size, sizeof (size)) == -1)
- size /= 2;
+ while (setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &size, sizeof(size))
+ == -1)
+ size /= 2;
- if (size != orig_req)
- zlog_warn ("%s: fd %d: SO_SNDBUF set to %d (requested %d)", __func__, sock,
- size, orig_req);
+ if (size != orig_req)
+ zlog_warn("%s: fd %d: SO_SNDBUF set to %d (requested %d)",
+ __func__, sock, size, orig_req);
}
-int
-getsockopt_so_sendbuf (const int sock)
+int getsockopt_so_sendbuf(const int sock)
{
- u_int32_t optval;
- socklen_t optlen = sizeof (optval);
- int ret = getsockopt (sock, SOL_SOCKET, SO_SNDBUF,
- (char *)&optval, &optlen);
- if (ret < 0)
- {
- zlog_err ("fd %d: can't getsockopt SO_SNDBUF: %d (%s)",
- sock, errno, safe_strerror (errno));
- return ret;
- }
- return optval;
+ u_int32_t optval;
+ socklen_t optlen = sizeof(optval);
+ int ret = getsockopt(sock, SOL_SOCKET, SO_SNDBUF, (char *)&optval,
+ &optlen);
+ if (ret < 0) {
+ zlog_err("fd %d: can't getsockopt SO_SNDBUF: %d (%s)", sock,
+ errno, safe_strerror(errno));
+ return ret;
+ }
+ return optval;
}
-static void *
-getsockopt_cmsg_data (struct msghdr *msgh, int level, int type)
+static void *getsockopt_cmsg_data(struct msghdr *msgh, int level, int type)
{
- struct cmsghdr *cmsg;
- void *ptr = NULL;
-
- for (cmsg = ZCMSG_FIRSTHDR(msgh);
- cmsg != NULL;
- cmsg = CMSG_NXTHDR(msgh, cmsg))
- if (cmsg->cmsg_level == level && cmsg->cmsg_type)
- return (ptr = CMSG_DATA(cmsg));
-
- return NULL;
+ struct cmsghdr *cmsg;
+ void *ptr = NULL;
+
+ for (cmsg = ZCMSG_FIRSTHDR(msgh); cmsg != NULL;
+ cmsg = CMSG_NXTHDR(msgh, cmsg))
+ if (cmsg->cmsg_level == level && cmsg->cmsg_type)
+ return (ptr = CMSG_DATA(cmsg));
+
+ return NULL;
}
/* Set IPv6 packet info to the socket. */
-int
-setsockopt_ipv6_pktinfo (int sock, int val)
+int setsockopt_ipv6_pktinfo(int sock, int val)
{
- int ret;
-
-#ifdef IPV6_RECVPKTINFO /*2292bis-01*/
- ret = setsockopt(sock, IPPROTO_IPV6, IPV6_RECVPKTINFO, &val, sizeof(val));
- if (ret < 0)
- zlog_warn ("can't setsockopt IPV6_RECVPKTINFO : %s", safe_strerror (errno));
-#else /*RFC2292*/
- ret = setsockopt(sock, IPPROTO_IPV6, IPV6_PKTINFO, &val, sizeof(val));
- if (ret < 0)
- zlog_warn ("can't setsockopt IPV6_PKTINFO : %s", safe_strerror (errno));
+ int ret;
+
+#ifdef IPV6_RECVPKTINFO /*2292bis-01*/
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_RECVPKTINFO, &val,
+ sizeof(val));
+ if (ret < 0)
+ zlog_warn("can't setsockopt IPV6_RECVPKTINFO : %s",
+ safe_strerror(errno));
+#else /*RFC2292*/
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_PKTINFO, &val, sizeof(val));
+ if (ret < 0)
+ zlog_warn("can't setsockopt IPV6_PKTINFO : %s",
+ safe_strerror(errno));
#endif /* INIA_IPV6 */
- return ret;
+ return ret;
}
/* Set multicast hops val to the socket. */
-int
-setsockopt_ipv6_checksum (int sock, int val)
+int setsockopt_ipv6_checksum(int sock, int val)
{
- int ret;
+ int ret;
#ifdef GNU_LINUX
- ret = setsockopt(sock, IPPROTO_RAW, IPV6_CHECKSUM, &val, sizeof(val));
+ ret = setsockopt(sock, IPPROTO_RAW, IPV6_CHECKSUM, &val, sizeof(val));
#else
- ret = setsockopt(sock, IPPROTO_IPV6, IPV6_CHECKSUM, &val, sizeof(val));
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_CHECKSUM, &val, sizeof(val));
#endif /* GNU_LINUX */
- if (ret < 0)
- zlog_warn ("can't setsockopt IPV6_CHECKSUM");
- return ret;
+ if (ret < 0)
+ zlog_warn("can't setsockopt IPV6_CHECKSUM");
+ return ret;
}
/* Set multicast hops val to the socket. */
-int
-setsockopt_ipv6_multicast_hops (int sock, int val)
+int setsockopt_ipv6_multicast_hops(int sock, int val)
{
- int ret;
+ int ret;
- ret = setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &val, sizeof(val));
- if (ret < 0)
- zlog_warn ("can't setsockopt IPV6_MULTICAST_HOPS");
- return ret;
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &val,
+ sizeof(val));
+ if (ret < 0)
+ zlog_warn("can't setsockopt IPV6_MULTICAST_HOPS");
+ return ret;
}
/* Set multicast hops val to the socket. */
-int
-setsockopt_ipv6_unicast_hops (int sock, int val)
+int setsockopt_ipv6_unicast_hops(int sock, int val)
{
- int ret;
+ int ret;
- ret = setsockopt(sock, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &val, sizeof(val));
- if (ret < 0)
- zlog_warn ("can't setsockopt IPV6_UNICAST_HOPS");
- return ret;
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &val,
+ sizeof(val));
+ if (ret < 0)
+ zlog_warn("can't setsockopt IPV6_UNICAST_HOPS");
+ return ret;
}
-int
-setsockopt_ipv6_hoplimit (int sock, int val)
+int setsockopt_ipv6_hoplimit(int sock, int val)
{
- int ret;
-
-#ifdef IPV6_RECVHOPLIMIT /*2292bis-01*/
- ret = setsockopt (sock, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &val, sizeof(val));
- if (ret < 0)
- zlog_warn ("can't setsockopt IPV6_RECVHOPLIMIT");
-#else /*RFC2292*/
- ret = setsockopt (sock, IPPROTO_IPV6, IPV6_HOPLIMIT, &val, sizeof(val));
- if (ret < 0)
- zlog_warn ("can't setsockopt IPV6_HOPLIMIT");
+ int ret;
+
+#ifdef IPV6_RECVHOPLIMIT /*2292bis-01*/
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_RECVHOPLIMIT, &val,
+ sizeof(val));
+ if (ret < 0)
+ zlog_warn("can't setsockopt IPV6_RECVHOPLIMIT");
+#else /*RFC2292*/
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_HOPLIMIT, &val, sizeof(val));
+ if (ret < 0)
+ zlog_warn("can't setsockopt IPV6_HOPLIMIT");
#endif
- return ret;
+ return ret;
}
/* Set multicast loop zero to the socket. */
-int
-setsockopt_ipv6_multicast_loop (int sock, int val)
+int setsockopt_ipv6_multicast_loop(int sock, int val)
{
- int ret;
-
- ret = setsockopt (sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &val,
- sizeof (val));
- if (ret < 0)
- zlog_warn ("can't setsockopt IPV6_MULTICAST_LOOP");
- return ret;
+ int ret;
+
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &val,
+ sizeof(val));
+ if (ret < 0)
+ zlog_warn("can't setsockopt IPV6_MULTICAST_LOOP");
+ return ret;
}
-static int
-getsockopt_ipv6_ifindex (struct msghdr *msgh)
+static int getsockopt_ipv6_ifindex(struct msghdr *msgh)
{
- struct in6_pktinfo *pktinfo;
-
- pktinfo = getsockopt_cmsg_data (msgh, IPPROTO_IPV6, IPV6_PKTINFO);
-
- return pktinfo->ipi6_ifindex;
+ struct in6_pktinfo *pktinfo;
+
+ pktinfo = getsockopt_cmsg_data(msgh, IPPROTO_IPV6, IPV6_PKTINFO);
+
+ return pktinfo->ipi6_ifindex;
}
-int
-setsockopt_ipv6_tclass(int sock, int tclass)
+int setsockopt_ipv6_tclass(int sock, int tclass)
{
- int ret = 0;
+ int ret = 0;
#ifdef IPV6_TCLASS /* RFC3542 */
- ret = setsockopt (sock, IPPROTO_IPV6, IPV6_TCLASS, &tclass, sizeof (tclass));
- if (ret < 0)
- zlog_warn ("Can't set IPV6_TCLASS option for fd %d to %#x: %s",
- sock, tclass, safe_strerror(errno));
+ ret = setsockopt(sock, IPPROTO_IPV6, IPV6_TCLASS, &tclass,
+ sizeof(tclass));
+ if (ret < 0)
+ zlog_warn("Can't set IPV6_TCLASS option for fd %d to %#x: %s",
+ sock, tclass, safe_strerror(errno));
#endif
- return ret;
+ return ret;
}
/*
@@ -219,238 +214,241 @@ setsockopt_ipv6_tclass(int sock, int tclass)
* but this behavior should not be harmful if they behave the same way,
* allow leaves, or implicitly leave all groups joined to down interfaces.
*/
-int
-setsockopt_ipv4_multicast(int sock,
- int optname,
- struct in_addr if_addr,
- unsigned int mcast_addr,
- ifindex_t ifindex)
+int setsockopt_ipv4_multicast(int sock, int optname, struct in_addr if_addr,
+ unsigned int mcast_addr, ifindex_t ifindex)
{
#ifdef HAVE_RFC3678
- struct group_req gr;
- struct sockaddr_in *si;
- int ret;
- memset (&gr, 0, sizeof(gr));
- si = (struct sockaddr_in *)&gr.gr_group;
- gr.gr_interface = ifindex;
- si->sin_family = AF_INET;
+ struct group_req gr;
+ struct sockaddr_in *si;
+ int ret;
+ memset(&gr, 0, sizeof(gr));
+ si = (struct sockaddr_in *)&gr.gr_group;
+ gr.gr_interface = ifindex;
+ si->sin_family = AF_INET;
#ifdef HAVE_STRUCT_SOCKADDR_IN_SIN_LEN
- si->sin_len = sizeof(struct sockaddr_in);
+ si->sin_len = sizeof(struct sockaddr_in);
#endif /* HAVE_STRUCT_SOCKADDR_IN_SIN_LEN */
- si->sin_addr.s_addr = mcast_addr;
- ret = setsockopt(sock, IPPROTO_IP, (optname == IP_ADD_MEMBERSHIP) ?
- MCAST_JOIN_GROUP : MCAST_LEAVE_GROUP, (void *)&gr, sizeof(gr));
- if ((ret < 0) && (optname == IP_ADD_MEMBERSHIP) && (errno == EADDRINUSE))
- {
- setsockopt(sock, IPPROTO_IP, MCAST_LEAVE_GROUP, (void *)&gr, sizeof(gr));
- ret = setsockopt(sock, IPPROTO_IP, MCAST_JOIN_GROUP, (void *)&gr, sizeof(gr));
- }
- return ret;
+ si->sin_addr.s_addr = mcast_addr;
+ ret = setsockopt(sock, IPPROTO_IP,
+ (optname == IP_ADD_MEMBERSHIP) ? MCAST_JOIN_GROUP
+ : MCAST_LEAVE_GROUP,
+ (void *)&gr, sizeof(gr));
+ if ((ret < 0) && (optname == IP_ADD_MEMBERSHIP)
+ && (errno == EADDRINUSE)) {
+ setsockopt(sock, IPPROTO_IP, MCAST_LEAVE_GROUP, (void *)&gr,
+ sizeof(gr));
+ ret = setsockopt(sock, IPPROTO_IP, MCAST_JOIN_GROUP,
+ (void *)&gr, sizeof(gr));
+ }
+ return ret;
#elif defined(HAVE_STRUCT_IP_MREQN_IMR_IFINDEX) && !defined(__FreeBSD__)
- struct ip_mreqn mreqn;
- int ret;
-
- assert(optname == IP_ADD_MEMBERSHIP || optname == IP_DROP_MEMBERSHIP);
- memset (&mreqn, 0, sizeof(mreqn));
-
- mreqn.imr_multiaddr.s_addr = mcast_addr;
- mreqn.imr_ifindex = ifindex;
-
- ret = setsockopt(sock, IPPROTO_IP, optname,
- (void *)&mreqn, sizeof(mreqn));
- if ((ret < 0) && (optname == IP_ADD_MEMBERSHIP) && (errno == EADDRINUSE))
- {
- /* see above: handle possible problem when interface comes back up */
- char buf[1][INET_ADDRSTRLEN];
- zlog_info("setsockopt_ipv4_multicast attempting to drop and "
- "re-add (fd %d, mcast %s, ifindex %u)",
- sock,
- inet_ntop(AF_INET, &mreqn.imr_multiaddr,
- buf[0], sizeof(buf[0])), ifindex);
- setsockopt(sock, IPPROTO_IP, IP_DROP_MEMBERSHIP,
- (void *)&mreqn, sizeof(mreqn));
- ret = setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
- (void *)&mreqn, sizeof(mreqn));
- }
- return ret;
-
- /* Example defines for another OS, boilerplate off other code in this
- function, AND handle optname as per other sections for consistency !! */
- /* #elif defined(BOGON_NIX) && EXAMPLE_VERSION_CODE > -100000 */
- /* Add your favourite OS here! */
-
-#elif defined(HAVE_BSD_STRUCT_IP_MREQ_HACK) /* #if OS_TYPE */
- /* standard BSD API */
-
- struct ip_mreq mreq;
- int ret;
-
- assert(optname == IP_ADD_MEMBERSHIP || optname == IP_DROP_MEMBERSHIP);
-
-
- memset (&mreq, 0, sizeof(mreq));
- mreq.imr_multiaddr.s_addr = mcast_addr;
+ struct ip_mreqn mreqn;
+ int ret;
+
+ assert(optname == IP_ADD_MEMBERSHIP || optname == IP_DROP_MEMBERSHIP);
+ memset(&mreqn, 0, sizeof(mreqn));
+
+ mreqn.imr_multiaddr.s_addr = mcast_addr;
+ mreqn.imr_ifindex = ifindex;
+
+ ret = setsockopt(sock, IPPROTO_IP, optname, (void *)&mreqn,
+ sizeof(mreqn));
+ if ((ret < 0) && (optname == IP_ADD_MEMBERSHIP)
+ && (errno == EADDRINUSE)) {
+ /* see above: handle possible problem when interface comes back
+ * up */
+ char buf[1][INET_ADDRSTRLEN];
+ zlog_info(
+ "setsockopt_ipv4_multicast attempting to drop and "
+ "re-add (fd %d, mcast %s, ifindex %u)",
+ sock, inet_ntop(AF_INET, &mreqn.imr_multiaddr, buf[0],
+ sizeof(buf[0])),
+ ifindex);
+ setsockopt(sock, IPPROTO_IP, IP_DROP_MEMBERSHIP, (void *)&mreqn,
+ sizeof(mreqn));
+ ret = setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+ (void *)&mreqn, sizeof(mreqn));
+ }
+ return ret;
+
+/* Example defines for another OS, boilerplate off other code in this
+ function, AND handle optname as per other sections for consistency !! */
+/* #elif defined(BOGON_NIX) && EXAMPLE_VERSION_CODE > -100000 */
+/* Add your favourite OS here! */
+
+#elif defined(HAVE_BSD_STRUCT_IP_MREQ_HACK) /* #if OS_TYPE */
+ /* standard BSD API */
+
+ struct ip_mreq mreq;
+ int ret;
+
+ assert(optname == IP_ADD_MEMBERSHIP || optname == IP_DROP_MEMBERSHIP);
+
+
+ memset(&mreq, 0, sizeof(mreq));
+ mreq.imr_multiaddr.s_addr = mcast_addr;
#if !defined __OpenBSD__
- mreq.imr_interface.s_addr = htonl (ifindex);
+ mreq.imr_interface.s_addr = htonl(ifindex);
#else
- mreq.imr_interface.s_addr = if_addr.s_addr;
+ mreq.imr_interface.s_addr = if_addr.s_addr;
#endif
- ret = setsockopt (sock, IPPROTO_IP, optname, (void *)&mreq, sizeof(mreq));
- if ((ret < 0) && (optname == IP_ADD_MEMBERSHIP) && (errno == EADDRINUSE))
- {
- /* see above: handle possible problem when interface comes back up */
- char buf[1][INET_ADDRSTRLEN];
- zlog_info("setsockopt_ipv4_multicast attempting to drop and "
- "re-add (fd %d, mcast %s, ifindex %u)",
- sock,
- inet_ntop(AF_INET, &mreq.imr_multiaddr,
- buf[0], sizeof(buf[0])), ifindex);
- setsockopt (sock, IPPROTO_IP, IP_DROP_MEMBERSHIP,
- (void *)&mreq, sizeof(mreq));
- ret = setsockopt (sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
- (void *)&mreq, sizeof(mreq));
- }
- return ret;
+ ret = setsockopt(sock, IPPROTO_IP, optname, (void *)&mreq,
+ sizeof(mreq));
+ if ((ret < 0) && (optname == IP_ADD_MEMBERSHIP)
+ && (errno == EADDRINUSE)) {
+ /* see above: handle possible problem when interface comes back
+ * up */
+ char buf[1][INET_ADDRSTRLEN];
+ zlog_info(
+ "setsockopt_ipv4_multicast attempting to drop and "
+ "re-add (fd %d, mcast %s, ifindex %u)",
+ sock, inet_ntop(AF_INET, &mreq.imr_multiaddr, buf[0],
+ sizeof(buf[0])),
+ ifindex);
+ setsockopt(sock, IPPROTO_IP, IP_DROP_MEMBERSHIP, (void *)&mreq,
+ sizeof(mreq));
+ ret = setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+ (void *)&mreq, sizeof(mreq));
+ }
+ return ret;
#else
- #error "Unsupported multicast API"
+#error "Unsupported multicast API"
#endif /* #if OS_TYPE */
-
}
/*
* Set IP_MULTICAST_IF socket option in an OS-dependent manner.
*/
-int
-setsockopt_ipv4_multicast_if(int sock, struct in_addr if_addr,
- ifindex_t ifindex)
+int setsockopt_ipv4_multicast_if(int sock, struct in_addr if_addr,
+ ifindex_t ifindex)
{
#ifdef HAVE_STRUCT_IP_MREQN_IMR_IFINDEX
- struct ip_mreqn mreqn;
- memset (&mreqn, 0, sizeof(mreqn));
+ struct ip_mreqn mreqn;
+ memset(&mreqn, 0, sizeof(mreqn));
- mreqn.imr_ifindex = ifindex;
- return setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF, (void *)&mreqn, sizeof(mreqn));
+ mreqn.imr_ifindex = ifindex;
+ return setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF, (void *)&mreqn,
+ sizeof(mreqn));
- /* Example defines for another OS, boilerplate off other code in this
- function */
- /* #elif defined(BOGON_NIX) && EXAMPLE_VERSION_CODE > -100000 */
- /* Add your favourite OS here! */
+/* Example defines for another OS, boilerplate off other code in this
+ function */
+/* #elif defined(BOGON_NIX) && EXAMPLE_VERSION_CODE > -100000 */
+/* Add your favourite OS here! */
#elif defined(HAVE_BSD_STRUCT_IP_MREQ_HACK)
- struct in_addr m;
+ struct in_addr m;
#if !defined __OpenBSD__
- m.s_addr = htonl (ifindex);
+ m.s_addr = htonl(ifindex);
#else
- m.s_addr = if_addr.s_addr;
+ m.s_addr = if_addr.s_addr;
#endif
- return setsockopt (sock, IPPROTO_IP, IP_MULTICAST_IF, (void *)&m, sizeof(m));
+ return setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF, (void *)&m,
+ sizeof(m));
#elif defined(SUNOS_5)
- char ifname[IF_NAMESIZE];
- struct ifaddrs *ifa, *ifap;
- struct in_addr ifaddr;
-
- if (if_indextoname(ifindex, ifname) == NULL)
- return -1;
-
- if (getifaddrs(&ifa) != 0)
- return -1;
-
- for (ifap = ifa; ifap != NULL; ifap = ifap->ifa_next)
- {
- struct sockaddr_in *sa;
-
- if (strcmp(ifap->ifa_name, ifname) != 0)
- continue;
- if (ifap->ifa_addr->sa_family != AF_INET)
- continue;
- sa = (struct sockaddr_in*)ifap->ifa_addr;
- memcpy(&ifaddr, &sa->sin_addr, sizeof(ifaddr));
- break;
- }
-
- freeifaddrs(ifa);
- if (!ifap) /* This means we did not find an IP */
- return -1;
-
- return setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF, (void *)&ifaddr, sizeof(ifaddr));
+ char ifname[IF_NAMESIZE];
+ struct ifaddrs *ifa, *ifap;
+ struct in_addr ifaddr;
+
+ if (if_indextoname(ifindex, ifname) == NULL)
+ return -1;
+
+ if (getifaddrs(&ifa) != 0)
+ return -1;
+
+ for (ifap = ifa; ifap != NULL; ifap = ifap->ifa_next) {
+ struct sockaddr_in *sa;
+
+ if (strcmp(ifap->ifa_name, ifname) != 0)
+ continue;
+ if (ifap->ifa_addr->sa_family != AF_INET)
+ continue;
+ sa = (struct sockaddr_in *)ifap->ifa_addr;
+ memcpy(&ifaddr, &sa->sin_addr, sizeof(ifaddr));
+ break;
+ }
+
+ freeifaddrs(ifa);
+ if (!ifap) /* This means we did not find an IP */
+ return -1;
+
+ return setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF, (void *)&ifaddr,
+ sizeof(ifaddr));
#else
- #error "Unsupported multicast API"
+#error "Unsupported multicast API"
#endif
}
-int
-setsockopt_ipv4_multicast_loop (int sock, u_char val)
+int setsockopt_ipv4_multicast_loop(int sock, u_char val)
{
- int ret;
+ int ret;
- ret = setsockopt (sock, IPPROTO_IP, IP_MULTICAST_LOOP, (void *) &val,
- sizeof (val));
- if (ret < 0)
- zlog_warn ("can't setsockopt IP_MULTICAST_LOOP");
+ ret = setsockopt(sock, IPPROTO_IP, IP_MULTICAST_LOOP, (void *)&val,
+ sizeof(val));
+ if (ret < 0)
+ zlog_warn("can't setsockopt IP_MULTICAST_LOOP");
- return ret;
+ return ret;
}
-static int
-setsockopt_ipv4_ifindex (int sock, ifindex_t val)
+static int setsockopt_ipv4_ifindex(int sock, ifindex_t val)
{
- int ret;
-
-#if defined (IP_PKTINFO)
- if ((ret = setsockopt (sock, IPPROTO_IP, IP_PKTINFO, &val, sizeof (val))) < 0)
- zlog_warn ("Can't set IP_PKTINFO option for fd %d to %d: %s",
- sock,val,safe_strerror(errno));
-#elif defined (IP_RECVIF)
- if ((ret = setsockopt (sock, IPPROTO_IP, IP_RECVIF, &val, sizeof (val))) < 0)
- zlog_warn ("Can't set IP_RECVIF option for fd %d to %d: %s",
- sock,val,safe_strerror(errno));
+ int ret;
+
+#if defined(IP_PKTINFO)
+ if ((ret = setsockopt(sock, IPPROTO_IP, IP_PKTINFO, &val, sizeof(val)))
+ < 0)
+ zlog_warn("Can't set IP_PKTINFO option for fd %d to %d: %s",
+ sock, val, safe_strerror(errno));
+#elif defined(IP_RECVIF)
+ if ((ret = setsockopt(sock, IPPROTO_IP, IP_RECVIF, &val, sizeof(val)))
+ < 0)
+ zlog_warn("Can't set IP_RECVIF option for fd %d to %d: %s",
+ sock, val, safe_strerror(errno));
#else
#warning "Neither IP_PKTINFO nor IP_RECVIF is available."
#warning "Will not be able to receive link info."
#warning "Things might be seriously broken.."
- /* XXX Does this ever happen? Should there be a zlog_warn message here? */
- ret = -1;
+ /* XXX Does this ever happen? Should there be a zlog_warn message here?
+ */
+ ret = -1;
#endif
- return ret;
+ return ret;
}
-int
-setsockopt_ipv4_tos(int sock, int tos)
+int setsockopt_ipv4_tos(int sock, int tos)
{
- int ret;
+ int ret;
- ret = setsockopt (sock, IPPROTO_IP, IP_TOS, &tos, sizeof (tos));
- if (ret < 0)
- zlog_warn ("Can't set IP_TOS option for fd %d to %#x: %s",
- sock, tos, safe_strerror(errno));
- return ret;
+ ret = setsockopt(sock, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
+ if (ret < 0)
+ zlog_warn("Can't set IP_TOS option for fd %d to %#x: %s", sock,
+ tos, safe_strerror(errno));
+ return ret;
}
-int
-setsockopt_ifindex (int af, int sock, ifindex_t val)
+int setsockopt_ifindex(int af, int sock, ifindex_t val)
{
- int ret = -1;
-
- switch (af)
- {
- case AF_INET:
- ret = setsockopt_ipv4_ifindex (sock, val);
- break;
- case AF_INET6:
- ret = setsockopt_ipv6_pktinfo (sock, val);
- break;
- default:
- zlog_warn ("setsockopt_ifindex: unknown address family %d", af);
- }
- return ret;
+ int ret = -1;
+
+ switch (af) {
+ case AF_INET:
+ ret = setsockopt_ipv4_ifindex(sock, val);
+ break;
+ case AF_INET6:
+ ret = setsockopt_ipv6_pktinfo(sock, val);
+ break;
+ default:
+ zlog_warn("setsockopt_ifindex: unknown address family %d", af);
+ }
+ return ret;
}
-
+
/*
* Requires: msgh is not NULL and points to a valid struct msghdr, which
* may or may not have control data about the incoming interface.
@@ -458,225 +456,223 @@ setsockopt_ifindex (int af, int sock, ifindex_t val)
* Returns the interface index (small integer >= 1) if it can be
* determined, or else 0.
*/
-static ifindex_t
-getsockopt_ipv4_ifindex (struct msghdr *msgh)
+static ifindex_t getsockopt_ipv4_ifindex(struct msghdr *msgh)
{
- /* XXX: initialize to zero? (Always overwritten, so just cosmetic.) */
- ifindex_t ifindex = -1;
+ /* XXX: initialize to zero? (Always overwritten, so just cosmetic.) */
+ ifindex_t ifindex = -1;
#if defined(IP_PKTINFO)
-/* Linux pktinfo based ifindex retrieval */
- struct in_pktinfo *pktinfo;
-
- pktinfo =
- (struct in_pktinfo *)getsockopt_cmsg_data (msgh, IPPROTO_IP, IP_PKTINFO);
- /* XXX Can pktinfo be NULL? Clean up post 0.98. */
- ifindex = pktinfo->ipi_ifindex;
-
+ /* Linux pktinfo based ifindex retrieval */
+ struct in_pktinfo *pktinfo;
+
+ pktinfo = (struct in_pktinfo *)getsockopt_cmsg_data(msgh, IPPROTO_IP,
+ IP_PKTINFO);
+ /* XXX Can pktinfo be NULL? Clean up post 0.98. */
+ ifindex = pktinfo->ipi_ifindex;
+
#elif defined(IP_RECVIF)
- /* retrieval based on IP_RECVIF */
+/* retrieval based on IP_RECVIF */
#ifndef SUNOS_5
- /* BSD systems use a sockaddr_dl as the control message payload. */
- struct sockaddr_dl *sdl;
+ /* BSD systems use a sockaddr_dl as the control message payload. */
+ struct sockaddr_dl *sdl;
#else
- /* SUNOS_5 uses an integer with the index. */
- ifindex_t *ifindex_p;
+ /* SUNOS_5 uses an integer with the index. */
+ ifindex_t *ifindex_p;
#endif /* SUNOS_5 */
#ifndef SUNOS_5
- /* BSD */
- sdl =
- (struct sockaddr_dl *)getsockopt_cmsg_data (msgh, IPPROTO_IP, IP_RECVIF);
- if (sdl != NULL)
- ifindex = sdl->sdl_index;
- else
- ifindex = 0;
+ /* BSD */
+ sdl = (struct sockaddr_dl *)getsockopt_cmsg_data(msgh, IPPROTO_IP,
+ IP_RECVIF);
+ if (sdl != NULL)
+ ifindex = sdl->sdl_index;
+ else
+ ifindex = 0;
#else
- /*
- * Solaris. On Solaris 8, IP_RECVIF is defined, but the call to
- * enable it fails with errno=99, and the struct msghdr has
- * controllen 0.
- */
- ifindex_p = (uint_t *)getsockopt_cmsg_data (msgh, IPPROTO_IP, IP_RECVIF);
- if (ifindex_p != NULL)
- ifindex = *ifindex_p;
- else
- ifindex = 0;
+ /*
+ * Solaris. On Solaris 8, IP_RECVIF is defined, but the call to
+ * enable it fails with errno=99, and the struct msghdr has
+ * controllen 0.
+ */
+ ifindex_p = (uint_t *)getsockopt_cmsg_data(msgh, IPPROTO_IP, IP_RECVIF);
+ if (ifindex_p != NULL)
+ ifindex = *ifindex_p;
+ else
+ ifindex = 0;
#endif /* SUNOS_5 */
#else
- /*
- * Neither IP_PKTINFO nor IP_RECVIF defined - warn at compile time.
- * XXX Decide if this is a core service, or if daemons have to cope.
- * Since Solaris 8 and OpenBSD seem not to provide it, it seems that
- * daemons have to cope.
- */
+/*
+ * Neither IP_PKTINFO nor IP_RECVIF defined - warn at compile time.
+ * XXX Decide if this is a core service, or if daemons have to cope.
+ * Since Solaris 8 and OpenBSD seem not to provide it, it seems that
+ * daemons have to cope.
+ */
#warning "getsockopt_ipv4_ifindex: Neither IP_PKTINFO nor IP_RECVIF defined."
#warning "Some daemons may fail to operate correctly!"
- ifindex = 0;
+ ifindex = 0;
-#endif /* IP_PKTINFO */
+#endif /* IP_PKTINFO */
- return ifindex;
+ return ifindex;
}
/* return ifindex, 0 if none found */
-ifindex_t
-getsockopt_ifindex (int af, struct msghdr *msgh)
+ifindex_t getsockopt_ifindex(int af, struct msghdr *msgh)
{
- switch (af)
- {
- case AF_INET:
- return (getsockopt_ipv4_ifindex (msgh));
- break;
- case AF_INET6:
- return (getsockopt_ipv6_ifindex (msgh));
- break;
- default:
- zlog_warn ("getsockopt_ifindex: unknown address family %d", af);
- return 0;
- }
+ switch (af) {
+ case AF_INET:
+ return (getsockopt_ipv4_ifindex(msgh));
+ break;
+ case AF_INET6:
+ return (getsockopt_ipv6_ifindex(msgh));
+ break;
+ default:
+ zlog_warn("getsockopt_ifindex: unknown address family %d", af);
+ return 0;
+ }
}
/* swab iph between order system uses for IP_HDRINCL and host order */
-void
-sockopt_iphdrincl_swab_htosys (struct ip *iph)
+void sockopt_iphdrincl_swab_htosys(struct ip *iph)
{
- /* BSD and derived take iph in network order, except for
- * ip_len and ip_off
- */
+/* BSD and derived take iph in network order, except for
+ * ip_len and ip_off
+ */
#ifndef HAVE_IP_HDRINCL_BSD_ORDER
- iph->ip_len = htons(iph->ip_len);
- iph->ip_off = htons(iph->ip_off);
+ iph->ip_len = htons(iph->ip_len);
+ iph->ip_off = htons(iph->ip_off);
#endif /* HAVE_IP_HDRINCL_BSD_ORDER */
- iph->ip_id = htons(iph->ip_id);
+ iph->ip_id = htons(iph->ip_id);
}
-void
-sockopt_iphdrincl_swab_systoh (struct ip *iph)
+void sockopt_iphdrincl_swab_systoh(struct ip *iph)
{
#ifndef HAVE_IP_HDRINCL_BSD_ORDER
- iph->ip_len = ntohs(iph->ip_len);
- iph->ip_off = ntohs(iph->ip_off);
+ iph->ip_len = ntohs(iph->ip_len);
+ iph->ip_off = ntohs(iph->ip_off);
#endif /* HAVE_IP_HDRINCL_BSD_ORDER */
- iph->ip_id = ntohs(iph->ip_id);
+ iph->ip_id = ntohs(iph->ip_id);
}
-int
-sockopt_tcp_rtt (int sock)
+int sockopt_tcp_rtt(int sock)
{
#ifdef TCP_INFO
- struct tcp_info ti;
- socklen_t len = sizeof(ti);
+ struct tcp_info ti;
+ socklen_t len = sizeof(ti);
- if (getsockopt (sock, IPPROTO_TCP, TCP_INFO, &ti, &len) != 0)
- return 0;
+ if (getsockopt(sock, IPPROTO_TCP, TCP_INFO, &ti, &len) != 0)
+ return 0;
- return ti.tcpi_rtt / 1000;
+ return ti.tcpi_rtt / 1000;
#else
- return 0;
+ return 0;
#endif
}
-int
-sockopt_tcp_signature (int sock, union sockunion *su, const char *password)
+int sockopt_tcp_signature(int sock, union sockunion *su, const char *password)
{
#if defined(HAVE_TCP_MD5_LINUX24) && defined(GNU_LINUX)
- /* Support for the old Linux 2.4 TCP-MD5 patch, taken from Hasso Tepper's
- * version of the Quagga patch (based on work by Rick Payne, and Bruce
- * Simpson)
- */
+/* Support for the old Linux 2.4 TCP-MD5 patch, taken from Hasso Tepper's
+ * version of the Quagga patch (based on work by Rick Payne, and Bruce
+ * Simpson)
+ */
#define TCP_MD5_AUTH 13
#define TCP_MD5_AUTH_ADD 1
#define TCP_MD5_AUTH_DEL 2
- struct tcp_rfc2385_cmd {
- u_int8_t command; /* Command - Add/Delete */
- u_int32_t address; /* IPV4 address associated */
- u_int8_t keylen; /* MD5 Key len (do NOT assume 0 terminated ascii) */
- void *key; /* MD5 Key */
- } cmd;
- struct in_addr *addr = &su->sin.sin_addr;
-
- cmd.command = (password != NULL ? TCP_MD5_AUTH_ADD : TCP_MD5_AUTH_DEL);
- cmd.address = addr->s_addr;
- cmd.keylen = (password != NULL ? strlen (password) : 0);
- cmd.key = password;
-
- return setsockopt (sock, IPPROTO_TCP, TCP_MD5_AUTH, &cmd, sizeof cmd);
-
+ struct tcp_rfc2385_cmd {
+ u_int8_t command; /* Command - Add/Delete */
+ u_int32_t address; /* IPV4 address associated */
+ u_int8_t keylen; /* MD5 Key len (do NOT assume 0 terminated
+ ascii) */
+ void *key; /* MD5 Key */
+ } cmd;
+ struct in_addr *addr = &su->sin.sin_addr;
+
+ cmd.command = (password != NULL ? TCP_MD5_AUTH_ADD : TCP_MD5_AUTH_DEL);
+ cmd.address = addr->s_addr;
+ cmd.keylen = (password != NULL ? strlen(password) : 0);
+ cmd.key = password;
+
+ return setsockopt(sock, IPPROTO_TCP, TCP_MD5_AUTH, &cmd, sizeof cmd);
+
#elif HAVE_DECL_TCP_MD5SIG
- int ret;
+ int ret;
#ifndef GNU_LINUX
- /*
- * XXX Need to do PF_KEY operation here to add/remove an SA entry,
- * and add/remove an SP entry for this peer's packet flows also.
- */
- int md5sig = password && *password ? 1 : 0;
+ /*
+ * XXX Need to do PF_KEY operation here to add/remove an SA entry,
+ * and add/remove an SP entry for this peer's packet flows also.
+ */
+ int md5sig = password && *password ? 1 : 0;
#else
- int keylen = password ? strlen (password) : 0;
- struct tcp_md5sig md5sig;
- union sockunion *su2, *susock;
-
- /* Figure out whether the socket and the sockunion are the same family..
- * adding AF_INET to AF_INET6 needs to be v4 mapped, you'd think..
- */
- if (!(susock = sockunion_getsockname (sock)))
- return -1;
-
- if (susock->sa.sa_family == su->sa.sa_family)
- su2 = su;
- else
- {
- /* oops.. */
- su2 = susock;
-
- if (su2->sa.sa_family == AF_INET)
- {
- sockunion_free (susock);
- return 0;
- }
-
- /* If this does not work, then all users of this sockopt will need to
- * differentiate between IPv4 and IPv6, and keep seperate sockets for
- * each.
- *
- * Sadly, it doesn't seem to work at present. It's unknown whether
- * this is a bug or not.
- */
- if (su2->sa.sa_family == AF_INET6
- && su->sa.sa_family == AF_INET)
- {
- su2->sin6.sin6_family = AF_INET6;
- /* V4Map the address */
- memset (&su2->sin6.sin6_addr, 0, sizeof (struct in6_addr));
- su2->sin6.sin6_addr.s6_addr32[2] = htonl(0xffff);
- memcpy (&su2->sin6.sin6_addr.s6_addr32[3], &su->sin.sin_addr, 4);
- }
- }
-
- memset (&md5sig, 0, sizeof (md5sig));
- memcpy (&md5sig.tcpm_addr, su2, sizeof (*su2));
- md5sig.tcpm_keylen = keylen;
- if (keylen)
- memcpy (md5sig.tcpm_key, password, keylen);
- sockunion_free (susock);
+ int keylen = password ? strlen(password) : 0;
+ struct tcp_md5sig md5sig;
+ union sockunion *su2, *susock;
+
+ /* Figure out whether the socket and the sockunion are the same family..
+ * adding AF_INET to AF_INET6 needs to be v4 mapped, you'd think..
+ */
+ if (!(susock = sockunion_getsockname(sock)))
+ return -1;
+
+ if (susock->sa.sa_family == su->sa.sa_family)
+ su2 = su;
+ else {
+ /* oops.. */
+ su2 = susock;
+
+ if (su2->sa.sa_family == AF_INET) {
+ sockunion_free(susock);
+ return 0;
+ }
+
+ /* If this does not work, then all users of this sockopt will
+ * need to
+ * differentiate between IPv4 and IPv6, and keep seperate
+ * sockets for
+ * each.
+ *
+ * Sadly, it doesn't seem to work at present. It's unknown
+ * whether
+ * this is a bug or not.
+ */
+ if (su2->sa.sa_family == AF_INET6
+ && su->sa.sa_family == AF_INET) {
+ su2->sin6.sin6_family = AF_INET6;
+ /* V4Map the address */
+ memset(&su2->sin6.sin6_addr, 0,
+ sizeof(struct in6_addr));
+ su2->sin6.sin6_addr.s6_addr32[2] = htonl(0xffff);
+ memcpy(&su2->sin6.sin6_addr.s6_addr32[3],
+ &su->sin.sin_addr, 4);
+ }
+ }
+
+ memset(&md5sig, 0, sizeof(md5sig));
+ memcpy(&md5sig.tcpm_addr, su2, sizeof(*su2));
+ md5sig.tcpm_keylen = keylen;
+ if (keylen)
+ memcpy(md5sig.tcpm_key, password, keylen);
+ sockunion_free(susock);
#endif /* GNU_LINUX */
- if ((ret = setsockopt (sock, IPPROTO_TCP, TCP_MD5SIG, &md5sig, sizeof md5sig)) < 0)
- {
- /* ENOENT is harmless. It is returned when we clear a password for which
- one was not previously set. */
- if (ENOENT == errno)
- ret = 0;
- else
- zlog_err ("sockopt_tcp_signature: setsockopt(%d): %s",
- sock, safe_strerror(errno));
- }
- return ret;
-#else /* HAVE_TCP_MD5SIG */
- return -2;
+ if ((ret = setsockopt(sock, IPPROTO_TCP, TCP_MD5SIG, &md5sig,
+ sizeof md5sig))
+ < 0) {
+ /* ENOENT is harmless. It is returned when we clear a password
+ for which
+ one was not previously set. */
+ if (ENOENT == errno)
+ ret = 0;
+ else
+ zlog_err("sockopt_tcp_signature: setsockopt(%d): %s",
+ sock, safe_strerror(errno));
+ }
+ return ret;
+#else /* HAVE_TCP_MD5SIG */
+ return -2;
#endif /* !HAVE_TCP_MD5SIG */
}