#include "table.h"
#include "rib.h"
#include "thread.h"
+#include "privs.h"
#include "zebra/zserv.h"
+#include "zebra/rt.h"
#include "zebra/redistribute.h"
#include "zebra/interface.h"
#include "zebra/debug.h"
int sock;
int seq;
struct sockaddr_nl snl;
- char *name;
-} netlink = { -1, 0, {0}, "netlink-listen" }, /* kernel messages */
- netlink_cmd = { -1, 0, {0}, "netlink-cmd" }, /* command channel */
- netlink_addr = {-1, 0, {0}, "netlink-addr" }; /* address channel */
+ const char *name;
+} netlink = { -1, 0, {0}, "netlink-listen"}, /* kernel messages */
+ netlink_cmd = { -1, 0, {0}, "netlink-cmd"}; /* command channel */
-struct message nlmsg_str[] =
-{
+struct message nlmsg_str[] = {
{RTM_NEWROUTE, "RTM_NEWROUTE"},
{RTM_DELROUTE, "RTM_DELROUTE"},
{RTM_GETROUTE, "RTM_GETROUTE"},
{RTM_NEWADDR, "RTM_NEWADDR"},
{RTM_DELADDR, "RTM_DELADDR"},
{RTM_GETADDR, "RTM_GETADDR"},
- {0, NULL}
+ {0, NULL}
+};
+
+const char *nexthop_types_desc[] =
+{
+ "none",
+ "Directly connected",
+ "Interface route",
+ "IPv4 nexthop",
+ "IPv4 nexthop with ifindex",
+ "IPv4 nexthop with ifname",
+ "IPv6 nexthop",
+ "IPv6 nexthop with ifindex",
+ "IPv6 nexthop with ifname",
+ "Null0 nexthop",
};
-extern int rtm_table_default;
+
+extern struct zebra_t zebrad;
+
+extern struct zebra_privs_t zserv_privs;
+
+extern u_int32_t nl_rcvbufsize;
+
+/* Note: on netlink systems, there should be a 1-to-1 mapping between interface
+ names and ifindex values. */
+static void
+set_ifindex(struct interface *ifp, unsigned int ifi_index)
+{
+ struct interface *oifp;
+
+ if (((oifp = if_lookup_by_index(ifi_index)) != NULL) && (oifp != ifp))
+ {
+ if (ifi_index == IFINDEX_INTERNAL)
+ zlog_err("Netlink is setting interface %s ifindex to reserved "
+ "internal value %u", ifp->name, ifi_index);
+ else
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("interface index %d was renamed from %s to %s",
+ ifi_index, oifp->name, ifp->name);
+ if (if_is_up(oifp))
+ zlog_err("interface rename detected on up interface: index %d "
+ "was renamed from %s to %s, results are uncertain!",
+ ifi_index, oifp->name, ifp->name);
+ if_delete_update(oifp);
+ }
+ }
+ ifp->ifindex = ifi_index;
+}
/* Make socket for Linux netlink interface. */
static int
struct sockaddr_nl snl;
int sock;
int namelen;
+ int save_errno;
sock = socket (AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock < 0)
{
zlog (NULL, LOG_ERR, "Can't open %s socket: %s", nl->name,
- strerror (errno));
+ safe_strerror (errno));
return -1;
}
if (ret < 0)
{
zlog (NULL, LOG_ERR, "Can't set %s socket flags: %s", nl->name,
- strerror (errno));
+ safe_strerror (errno));
close (sock);
return -1;
}
-
+
+ /* Set receive buffer size if it's set from command line */
+ if (nl_rcvbufsize)
+ {
+ u_int32_t oldsize, oldlen;
+ u_int32_t newsize, newlen;
+
+ oldlen = sizeof(oldsize);
+ newlen = sizeof(newsize);
+
+ ret = getsockopt(sock, SOL_SOCKET, SO_RCVBUF, &oldsize, &oldlen);
+ if (ret < 0)
+ {
+ zlog (NULL, LOG_ERR, "Can't get %s receive buffer size: %s", nl->name,
+ safe_strerror (errno));
+ close (sock);
+ return -1;
+ }
+
+ ret = setsockopt(sock, SOL_SOCKET, SO_RCVBUF, &nl_rcvbufsize,
+ sizeof(nl_rcvbufsize));
+ if (ret < 0)
+ {
+ zlog (NULL, LOG_ERR, "Can't set %s receive buffer size: %s", nl->name,
+ safe_strerror (errno));
+ close (sock);
+ return -1;
+ }
+
+ ret = getsockopt(sock, SOL_SOCKET, SO_RCVBUF, &newsize, &newlen);
+ if (ret < 0)
+ {
+ zlog (NULL, LOG_ERR, "Can't get %s receive buffer size: %s", nl->name,
+ safe_strerror (errno));
+ close (sock);
+ return -1;
+ }
+
+ zlog (NULL, LOG_INFO,
+ "Setting netlink socket receive buffer size: %u -> %u",
+ oldsize, newsize);
+ }
+
memset (&snl, 0, sizeof snl);
snl.nl_family = AF_NETLINK;
snl.nl_groups = groups;
/* Bind the socket to the netlink structure for anything. */
+ if (zserv_privs.change (ZPRIVS_RAISE))
+ {
+ zlog (NULL, LOG_ERR, "Can't raise privileges");
+ return -1;
+ }
+
ret = bind (sock, (struct sockaddr *) &snl, sizeof snl);
+ save_errno = errno;
+ if (zserv_privs.change (ZPRIVS_LOWER))
+ zlog (NULL, LOG_ERR, "Can't lower privileges");
+
if (ret < 0)
{
- zlog (NULL, LOG_ERR, "Can't bind %s socket to group 0x%x: %s",
- nl->name, snl.nl_groups, strerror (errno));
+ zlog (NULL, LOG_ERR, "Can't bind %s socket to group 0x%x: %s",
+ nl->name, snl.nl_groups, safe_strerror (save_errno));
close (sock);
return -1;
}
/* multiple netlink sockets will have different nl_pid */
namelen = sizeof snl;
- ret = getsockname (sock, (struct sockaddr *) &snl, &namelen);
+ ret = getsockname (sock, (struct sockaddr *) &snl, (socklen_t *) &namelen);
if (ret < 0 || namelen != sizeof snl)
{
zlog (NULL, LOG_ERR, "Can't get %s socket name: %s", nl->name,
- strerror (errno));
+ safe_strerror (errno));
close (sock);
return -1;
}
return ret;
}
-int set_netlink_blocking(struct nlsock *nl, int *flags)
+int
+set_netlink_blocking (struct nlsock *nl, int *flags)
{
/* Change socket flags for blocking I/O. */
- if((*flags = fcntl(nl->sock, F_GETFL, 0)) < 0)
+ if ((*flags = fcntl (nl->sock, F_GETFL, 0)) < 0)
{
- zlog (NULL, LOG_ERR, "%s:%i F_GETFL error: %s",
- __FUNCTION__, __LINE__, strerror (errno));
+ zlog (NULL, LOG_ERR, "%s:%i F_GETFL error: %s",
+ __FUNCTION__, __LINE__, safe_strerror (errno));
return -1;
}
*flags &= ~O_NONBLOCK;
- if(fcntl(nl->sock, F_SETFL, *flags) < 0)
+ if (fcntl (nl->sock, F_SETFL, *flags) < 0)
{
- zlog (NULL, LOG_ERR, "%s:%i F_SETFL error: %s",
- __FUNCTION__, __LINE__, strerror (errno));
+ zlog (NULL, LOG_ERR, "%s:%i F_SETFL error: %s",
+ __FUNCTION__, __LINE__, safe_strerror (errno));
return -1;
}
return 0;
}
-int set_netlink_nonblocking(struct nlsock *nl, int *flags)
-{
+int
+set_netlink_nonblocking (struct nlsock *nl, int *flags)
+{
/* Restore socket flags for nonblocking I/O */
*flags |= O_NONBLOCK;
- if(fcntl(nl->sock, F_SETFL, *flags) < 0)
+ if (fcntl (nl->sock, F_SETFL, *flags) < 0)
{
- zlog (NULL, LOG_ERR, "%s:%i F_SETFL error: %s",
- __FUNCTION__, __LINE__, strerror (errno));
+ zlog (NULL, LOG_ERR, "%s:%i F_SETFL error: %s",
+ __FUNCTION__, __LINE__, safe_strerror (errno));
return -1;
}
return 0;
{
int ret;
struct sockaddr_nl snl;
+ int save_errno;
struct
{
memset (&snl, 0, sizeof snl);
snl.nl_family = AF_NETLINK;
+ memset (&req, 0, sizeof req);
req.nlh.nlmsg_len = sizeof req;
req.nlh.nlmsg_type = type;
req.nlh.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST;
req.nlh.nlmsg_pid = 0;
req.nlh.nlmsg_seq = ++nl->seq;
req.g.rtgen_family = family;
-
- ret = sendto (nl->sock, (void*) &req, sizeof req, 0,
- (struct sockaddr*) &snl, sizeof snl);
+
+ /* linux appears to check capabilities on every message
+ * have to raise caps for every message sent
+ */
+ if (zserv_privs.change (ZPRIVS_RAISE))
+ {
+ zlog (NULL, LOG_ERR, "Can't raise privileges");
+ return -1;
+ }
+
+ ret = sendto (nl->sock, (void *) &req, sizeof req, 0,
+ (struct sockaddr *) &snl, sizeof snl);
+ save_errno = errno;
+
+ if (zserv_privs.change (ZPRIVS_LOWER))
+ zlog (NULL, LOG_ERR, "Can't lower privileges");
+
if (ret < 0)
{
- zlog (NULL, LOG_ERR, "%s sendto failed: %s", nl->name, strerror (errno));
+ zlog (NULL, LOG_ERR, "%s sendto failed: %s", nl->name,
+ safe_strerror (save_errno));
return -1;
}
+
return 0;
}
to the given function. */
static int
netlink_parse_info (int (*filter) (struct sockaddr_nl *, struct nlmsghdr *),
- struct nlsock *nl)
+ struct nlsock *nl)
{
int status;
int ret = 0;
char buf[4096];
struct iovec iov = { buf, sizeof buf };
struct sockaddr_nl snl;
- struct msghdr msg = { (void*)&snl, sizeof snl, &iov, 1, NULL, 0, 0};
+ struct msghdr msg = { (void *) &snl, sizeof snl, &iov, 1, NULL, 0, 0 };
struct nlmsghdr *h;
+ int save_errno;
+
+ if (zserv_privs.change (ZPRIVS_RAISE))
+ zlog (NULL, LOG_ERR, "Can't raise privileges");
status = recvmsg (nl->sock, &msg, 0);
+ save_errno = errno;
+
+ if (zserv_privs.change (ZPRIVS_LOWER))
+ zlog (NULL, LOG_ERR, "Can't lower privileges");
if (status < 0)
- {
- if (errno == EINTR)
- continue;
- if (errno == EWOULDBLOCK || errno == EAGAIN)
- break;
- zlog (NULL, LOG_ERR, "%s recvmsg overrun", nl->name);
- continue;
- }
+ {
+ if (save_errno == EINTR)
+ continue;
+ if (save_errno == EWOULDBLOCK || save_errno == EAGAIN)
+ break;
+ zlog (NULL, LOG_ERR, "%s recvmsg overrun: %s",
+ nl->name, safe_strerror(save_errno));
+ continue;
+ }
if (status == 0)
- {
- zlog (NULL, LOG_ERR, "%s EOF", nl->name);
- return -1;
- }
+ {
+ zlog (NULL, LOG_ERR, "%s EOF", nl->name);
+ return -1;
+ }
if (msg.msg_namelen != sizeof snl)
- {
- zlog (NULL, LOG_ERR, "%s sender address length error: length %d",
- nl->name, msg.msg_namelen);
- return -1;
- }
+ {
+ zlog (NULL, LOG_ERR, "%s sender address length error: length %d",
+ nl->name, msg.msg_namelen);
+ return -1;
+ }
+
+ /* JF: Ignore messages that aren't from the kernel */
+ if ( snl.nl_pid != 0 )
+ {
+ zlog ( NULL, LOG_ERR, "Ignoring message from pid %u", snl.nl_pid );
+ continue;
+ }
+
+ for (h = (struct nlmsghdr *) buf; NLMSG_OK (h, (unsigned int) status);
+ h = NLMSG_NEXT (h, status))
+ {
+ /* Finish of reading. */
+ if (h->nlmsg_type == NLMSG_DONE)
+ return ret;
+
+ /* Error handling. */
+ if (h->nlmsg_type == NLMSG_ERROR)
+ {
+ struct nlmsgerr *err = (struct nlmsgerr *) NLMSG_DATA (h);
- for (h = (struct nlmsghdr *) buf; NLMSG_OK (h, status);
- h = NLMSG_NEXT (h, status))
- {
- /* Finish of reading. */
- if (h->nlmsg_type == NLMSG_DONE)
- return ret;
-
- /* Error handling. */
- if (h->nlmsg_type == NLMSG_ERROR)
- {
- struct nlmsgerr *err = (struct nlmsgerr *) NLMSG_DATA (h);
-
/* If the error field is zero, then this is an ACK */
- if (err->error == 0)
+ if (err->error == 0)
{
- if (IS_ZEBRA_DEBUG_KERNEL)
- {
- zlog_info("%s: %s ACK: type=%s(%u), seq=%u, pid=%d",
- __FUNCTION__, nl->name,
- lookup (nlmsg_str, err->msg.nlmsg_type),
- err->msg.nlmsg_type, err->msg.nlmsg_seq,
- err->msg.nlmsg_pid);
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ zlog_debug ("%s: %s ACK: type=%s(%u), seq=%u, pid=%u",
+ __FUNCTION__, nl->name,
+ lookup (nlmsg_str, err->msg.nlmsg_type),
+ err->msg.nlmsg_type, err->msg.nlmsg_seq,
+ err->msg.nlmsg_pid);
}
-
- /* return if not a multipart message, otherwise continue */
- if(!(h->nlmsg_flags & NLM_F_MULTI))
- {
- return 0;
+
+ /* return if not a multipart message, otherwise continue */
+ if (!(h->nlmsg_flags & NLM_F_MULTI))
+ {
+ return 0;
}
- continue;
+ continue;
}
-
+
if (h->nlmsg_len < NLMSG_LENGTH (sizeof (struct nlmsgerr)))
- {
- zlog (NULL, LOG_ERR, "%s error: message truncated",
- nl->name);
- return -1;
- }
-
- /* Deal with Error Noise - MAG*/
- {
- int loglvl = LOG_ERR;
- int errnum = err->error;
- int msg_type = err->msg.nlmsg_type;
-
- if (nl == &netlink_cmd
- && (-errnum == ENODEV || -errnum == ESRCH)
- && (msg_type == RTM_NEWROUTE
- || msg_type == RTM_DELROUTE))
- loglvl = LOG_DEBUG;
-
- zlog (NULL, loglvl, "%s error: %s, type=%s(%u), "
- "seq=%u, pid=%d",
- nl->name, strerror (-errnum),
- lookup (nlmsg_str, msg_type),
- msg_type, err->msg.nlmsg_seq,
- err->msg.nlmsg_pid);
- }
- /*
- ret = -1;
- continue;
- */
- return -1;
- }
-
- /* OK we got netlink message. */
- if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_info ("netlink_parse_info: %s type %s(%u), seq=%u, pid=%d",
- nl->name,
- lookup (nlmsg_str, h->nlmsg_type), h->nlmsg_type,
- h->nlmsg_seq, h->nlmsg_pid);
-
- /* skip unsolicited messages originating from command socket */
- if (nl != &netlink_cmd && h->nlmsg_pid == netlink_cmd.snl.nl_pid)
- {
- if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_info ("netlink_parse_info: %s packet comes from %s",
- nl->name, netlink_cmd.name);
- continue;
- }
-
- error = (*filter) (&snl, h);
- if (error < 0)
- {
- zlog (NULL, LOG_ERR, "%s filter function error", nl->name);
- ret = error;
- }
- }
+ {
+ zlog (NULL, LOG_ERR, "%s error: message truncated",
+ nl->name);
+ return -1;
+ }
+
+ /* Deal with Error Noise - MAG */
+ {
+ int loglvl = LOG_ERR;
+ int errnum = err->error;
+ int msg_type = err->msg.nlmsg_type;
+
+ if (nl == &netlink_cmd
+ && (-errnum == ENODEV || -errnum == ESRCH)
+ && (msg_type == RTM_NEWROUTE || msg_type == RTM_DELROUTE))
+ loglvl = LOG_DEBUG;
+
+ zlog (NULL, loglvl, "%s error: %s, type=%s(%u), "
+ "seq=%u, pid=%u",
+ nl->name, safe_strerror (-errnum),
+ lookup (nlmsg_str, msg_type),
+ msg_type, err->msg.nlmsg_seq, err->msg.nlmsg_pid);
+ }
+ /*
+ ret = -1;
+ continue;
+ */
+ return -1;
+ }
+
+ /* OK we got netlink message. */
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug ("netlink_parse_info: %s type %s(%u), seq=%u, pid=%u",
+ nl->name,
+ lookup (nlmsg_str, h->nlmsg_type), h->nlmsg_type,
+ h->nlmsg_seq, h->nlmsg_pid);
+
+ /* skip unsolicited messages originating from command socket */
+ if (nl != &netlink_cmd && h->nlmsg_pid == netlink_cmd.snl.nl_pid)
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug ("netlink_parse_info: %s packet comes from %s",
+ netlink_cmd.name, nl->name);
+ continue;
+ }
+
+ error = (*filter) (&snl, h);
+ if (error < 0)
+ {
+ zlog (NULL, LOG_ERR, "%s filter function error", nl->name);
+ ret = error;
+ }
+ }
/* After error care. */
if (msg.msg_flags & MSG_TRUNC)
- {
- zlog (NULL, LOG_ERR, "%s error: message truncated", nl->name);
- continue;
- }
+ {
+ zlog (NULL, LOG_ERR, "%s error: message truncated", nl->name);
+ continue;
+ }
if (status)
- {
- zlog (NULL, LOG_ERR, "%s error: data remnant size %d", nl->name,
- status);
- return -1;
- }
+ {
+ zlog (NULL, LOG_ERR, "%s error: data remnant size %d", nl->name,
+ status);
+ return -1;
+ }
}
return ret;
}
/* Utility function for parse rtattr. */
static void
-netlink_parse_rtattr (struct rtattr **tb, int max, struct rtattr *rta, int len)
+netlink_parse_rtattr (struct rtattr **tb, int max, struct rtattr *rta,
+ int len)
{
- while (RTA_OK(rta, len))
+ while (RTA_OK (rta, len))
{
if (rta->rta_type <= max)
- tb[rta->rta_type] = rta;
- rta = RTA_NEXT(rta,len);
+ tb[rta->rta_type] = rta;
+ rta = RTA_NEXT (rta, len);
}
}
/* Looking up interface name. */
memset (tb, 0, sizeof tb);
netlink_parse_rtattr (tb, IFLA_MAX, IFLA_RTA (ifi), len);
+
+#ifdef IFLA_WIRELESS
+ /* check for wireless messages to ignore */
+ if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0))
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug ("%s: ignoring IFLA_WIRELESS message", __func__);
+ return 0;
+ }
+#endif /* IFLA_WIRELESS */
+
if (tb[IFLA_IFNAME] == NULL)
return -1;
- name = (char *)RTA_DATA(tb[IFLA_IFNAME]);
+ name = (char *) RTA_DATA (tb[IFLA_IFNAME]);
/* Add interface. */
ifp = if_get_by_name (name);
-
- ifp->ifindex = ifi->ifi_index;
+ set_ifindex(ifp, ifi->ifi_index);
ifp->flags = ifi->ifi_flags & 0x0000fffff;
- ifp->mtu = *(int *)RTA_DATA (tb[IFLA_MTU]);
+ ifp->mtu6 = ifp->mtu = *(int *) RTA_DATA (tb[IFLA_MTU]);
ifp->metric = 1;
/* Hardware type and address. */
{
int hw_addr_len;
- hw_addr_len = RTA_PAYLOAD(tb[IFLA_ADDRESS]);
+ hw_addr_len = RTA_PAYLOAD (tb[IFLA_ADDRESS]);
if (hw_addr_len > INTERFACE_HWADDR_MAX)
- zlog_warn ("Hardware address is too large: %d", hw_addr_len);
+ zlog_warn ("Hardware address is too large: %d", hw_addr_len);
else
- {
- ifp->hw_addr_len = hw_addr_len;
- memcpy (ifp->hw_addr, RTA_DATA(tb[IFLA_ADDRESS]), hw_addr_len);
-
- for (i = 0; i < hw_addr_len; i++)
- if (ifp->hw_addr[i] != 0)
- break;
-
- if (i == hw_addr_len)
- ifp->hw_addr_len = 0;
- else
- ifp->hw_addr_len = hw_addr_len;
- }
+ {
+ ifp->hw_addr_len = hw_addr_len;
+ memcpy (ifp->hw_addr, RTA_DATA (tb[IFLA_ADDRESS]), hw_addr_len);
+
+ for (i = 0; i < hw_addr_len; i++)
+ if (ifp->hw_addr[i] != 0)
+ break;
+
+ if (i == hw_addr_len)
+ ifp->hw_addr_len = 0;
+ else
+ ifp->hw_addr_len = hw_addr_len;
+ }
}
if_add_update (ifp);
{
int len;
struct ifaddrmsg *ifa;
- struct rtattr *tb [IFA_MAX + 1];
+ struct rtattr *tb[IFA_MAX + 1];
struct interface *ifp;
void *addr = NULL;
void *broad = NULL;
u_char flags = 0;
char *label = NULL;
- int peeronly = 0;
ifa = NLMSG_DATA (h);
- if (ifa->ifa_family != AF_INET
+ if (ifa->ifa_family != AF_INET
#ifdef HAVE_IPV6
&& ifa->ifa_family != AF_INET6
#endif /* HAVE_IPV6 */
- )
+ )
return 0;
if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR)
return 0;
- len = h->nlmsg_len - NLMSG_LENGTH(sizeof (struct ifaddrmsg));
+ len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct ifaddrmsg));
if (len < 0)
return -1;
if (ifp == NULL)
{
zlog_err ("netlink_interface_addr can't find interface by index %d",
- ifa->ifa_index);
+ ifa->ifa_index);
return -1;
}
- if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */
+ if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */
{
char buf[BUFSIZ];
- zlog_info ("netlink_interface_addr %s %s/%d:",
- lookup (nlmsg_str, h->nlmsg_type),
- ifp->name, ifa->ifa_prefixlen);
+ zlog_debug ("netlink_interface_addr %s %s:",
+ lookup (nlmsg_str, h->nlmsg_type), ifp->name);
if (tb[IFA_LOCAL])
- zlog_info (" IFA_LOCAL %s", inet_ntop (ifa->ifa_family,
- RTA_DATA (tb[IFA_LOCAL]), buf, BUFSIZ));
+ zlog_debug (" IFA_LOCAL %s/%d",
+ inet_ntop (ifa->ifa_family, RTA_DATA (tb[IFA_LOCAL]),
+ buf, BUFSIZ), ifa->ifa_prefixlen);
if (tb[IFA_ADDRESS])
- zlog_info (" IFA_ADDRESS %s", inet_ntop (ifa->ifa_family,
- RTA_DATA (tb[IFA_ADDRESS]), buf, BUFSIZ));
+ zlog_debug (" IFA_ADDRESS %s/%d",
+ inet_ntop (ifa->ifa_family, RTA_DATA (tb[IFA_ADDRESS]),
+ buf, BUFSIZ), ifa->ifa_prefixlen);
if (tb[IFA_BROADCAST])
- zlog_info (" IFA_BROADCAST %s", inet_ntop (ifa->ifa_family,
- RTA_DATA (tb[IFA_BROADCAST]), buf, BUFSIZ));
+ zlog_debug (" IFA_BROADCAST %s/%d",
+ inet_ntop (ifa->ifa_family, RTA_DATA (tb[IFA_BROADCAST]),
+ buf, BUFSIZ), ifa->ifa_prefixlen);
if (tb[IFA_LABEL] && strcmp (ifp->name, RTA_DATA (tb[IFA_LABEL])))
- zlog_info (" IFA_LABEL %s", RTA_DATA (tb[IFA_LABEL]));
+ zlog_debug (" IFA_LABEL %s", (char *)RTA_DATA (tb[IFA_LABEL]));
+
+ if (tb[IFA_CACHEINFO])
+ {
+ struct ifa_cacheinfo *ci = RTA_DATA (tb[IFA_CACHEINFO]);
+ zlog_debug (" IFA_CACHEINFO pref %d, valid %d",
+ ci->ifa_prefered, ci->ifa_valid);
+ }
+ }
+
+ if (tb[IFA_ADDRESS] == NULL)
+ tb[IFA_ADDRESS] = tb[IFA_LOCAL];
+
+ if (ifp->flags & IFF_POINTOPOINT)
+ {
+ if (tb[IFA_LOCAL])
+ {
+ addr = RTA_DATA (tb[IFA_LOCAL]);
+ if (tb[IFA_ADDRESS] &&
+ memcmp(RTA_DATA(tb[IFA_ADDRESS]),RTA_DATA(tb[IFA_LOCAL]),4))
+ /* if IFA_ADDRESS != IFA_LOCAL, then it's the peer address */
+ broad = RTA_DATA (tb[IFA_ADDRESS]);
+ else
+ broad = NULL;
+ }
+ else
+ {
+ if (tb[IFA_ADDRESS])
+ addr = RTA_DATA (tb[IFA_ADDRESS]);
+ else
+ addr = NULL;
+ }
}
-
- /* peer or broadcast network? */
- if (ifa->ifa_family == AF_INET)
- peeronly = if_is_pointopoint (ifp) ||
- ifa->ifa_prefixlen >= IPV4_MAX_PREFIXLEN - 1;
-#ifdef HAVE_IPV6
- if (ifa->ifa_family == AF_INET6) {
- peeronly = if_is_pointopoint (ifp) ||
- ifa->ifa_prefixlen >= IPV6_MAX_PREFIXLEN - 1;
- }
-#endif /* HAVE_IPV6*/
- if (!(tb[IFA_LOCAL] && tb[IFA_ADDRESS])) {
- /* FIXME: IPv6 Appears to have only IFA_ADDRESS */
- peeronly=0;
- }
-
- /* network. prefixlen applies to IFA_ADDRESS rather than IFA_LOCAL */
- if (tb[IFA_ADDRESS] && !peeronly)
- addr = RTA_DATA (tb[IFA_ADDRESS]);
- else if (tb[IFA_LOCAL])
- addr = RTA_DATA (tb[IFA_LOCAL]);
- else
- addr = NULL;
-
- /* broadcast/peer */
- if (tb[IFA_BROADCAST])
- broad = RTA_DATA (tb[IFA_BROADCAST]);
- else if (tb[IFA_ADDRESS] && peeronly)
- broad = RTA_DATA (tb[IFA_ADDRESS]); /* peer address specified */
else
- broad = NULL;
+ {
+ if (tb[IFA_ADDRESS])
+ addr = RTA_DATA (tb[IFA_ADDRESS]);
+ else
+ addr = NULL;
+
+ if (tb[IFA_BROADCAST])
+ broad = RTA_DATA(tb[IFA_BROADCAST]);
+ else
+ broad = NULL;
+ }
/* Flags. */
if (ifa->ifa_flags & IFA_F_SECONDARY)
/* Register interface address to the interface. */
if (ifa->ifa_family == AF_INET)
{
- if (h->nlmsg_type == RTM_NEWADDR)
- connected_add_ipv4 (ifp, flags,
- (struct in_addr *) addr, ifa->ifa_prefixlen,
- (struct in_addr *) broad, label);
- else
- connected_delete_ipv4 (ifp, flags,
- (struct in_addr *) addr, ifa->ifa_prefixlen,
- (struct in_addr *) broad, label);
+ if (h->nlmsg_type == RTM_NEWADDR)
+ connected_add_ipv4 (ifp, flags,
+ (struct in_addr *) addr, ifa->ifa_prefixlen,
+ (struct in_addr *) broad, label);
+ else
+ connected_delete_ipv4 (ifp, flags,
+ (struct in_addr *) addr, ifa->ifa_prefixlen,
+ (struct in_addr *) broad);
}
#ifdef HAVE_IPV6
if (ifa->ifa_family == AF_INET6)
{
if (h->nlmsg_type == RTM_NEWADDR)
- connected_add_ipv6 (ifp,
- (struct in6_addr *) addr, ifa->ifa_prefixlen,
- (struct in6_addr *) broad);
+ connected_add_ipv6 (ifp,
+ (struct in6_addr *) addr, ifa->ifa_prefixlen,
+ (struct in6_addr *) broad, label);
else
- connected_delete_ipv6 (ifp,
- (struct in6_addr *) addr, ifa->ifa_prefixlen,
- (struct in6_addr *) broad);
+ connected_delete_ipv6 (ifp,
+ (struct in6_addr *) addr, ifa->ifa_prefixlen,
+ (struct in6_addr *) broad);
}
-#endif /* HAVE_IPV6*/
+#endif /* HAVE_IPV6 */
return 0;
}
{
int len;
struct rtmsg *rtm;
- struct rtattr *tb [RTA_MAX + 1];
+ struct rtattr *tb[RTA_MAX + 1];
u_char flags = 0;
-
- char anyaddr[16] = {0};
+
+ char anyaddr[16] = { 0 };
int index;
int table;
+ int metric;
+
void *dest;
void *gate;
return 0;
table = rtm->rtm_table;
-#if 0 /* we weed them out later in rib_weed_tables () */
- if (table != RT_TABLE_MAIN && table != rtm_table_default)
+#if 0 /* we weed them out later in rib_weed_tables () */
+ if (table != RT_TABLE_MAIN && table != zebrad.rtm_table_default)
return 0;
#endif
- len = h->nlmsg_len - NLMSG_LENGTH(sizeof (struct rtmsg));
+ len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct rtmsg));
if (len < 0)
return -1;
/* Route which inserted by Zebra. */
if (rtm->rtm_protocol == RTPROT_ZEBRA)
flags |= ZEBRA_FLAG_SELFROUTE;
-
+
index = 0;
+ metric = 0;
dest = NULL;
gate = NULL;
if (tb[RTA_GATEWAY])
gate = RTA_DATA (tb[RTA_GATEWAY]);
+ if (tb[RTA_PRIORITY])
+ metric = *(int *) RTA_DATA(tb[RTA_PRIORITY]);
+
if (rtm->rtm_family == AF_INET)
{
struct prefix_ipv4 p;
memcpy (&p.prefix, dest, 4);
p.prefixlen = rtm->rtm_dst_len;
- rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, flags, &p, gate, index, table, 0, 0);
+ rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, flags, &p, gate, index, table, metric, 0);
}
#ifdef HAVE_IPV6
if (rtm->rtm_family == AF_INET6)
memcpy (&p.prefix, dest, 16);
p.prefixlen = rtm->rtm_dst_len;
- rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, flags, &p, gate, index, table);
+ rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, flags, &p, gate, index, table,
+ metric, 0);
}
#endif /* HAVE_IPV6 */
return 0;
}
-struct message rtproto_str [] =
-{
+struct message rtproto_str[] = {
{RTPROT_REDIRECT, "redirect"},
{RTPROT_KERNEL, "kernel"},
{RTPROT_BOOT, "boot"},
{
int len;
struct rtmsg *rtm;
- struct rtattr *tb [RTA_MAX + 1];
-
- char anyaddr[16] = {0};
+ struct rtattr *tb[RTA_MAX + 1];
+
+ char anyaddr[16] = { 0 };
int index;
int table;
rtm = NLMSG_DATA (h);
- if (! (h->nlmsg_type == RTM_NEWROUTE || h->nlmsg_type == RTM_DELROUTE))
+ if (!(h->nlmsg_type == RTM_NEWROUTE || h->nlmsg_type == RTM_DELROUTE))
{
/* If this is not route add/delete message print warning. */
zlog_warn ("Kernel message: %d\n", h->nlmsg_type);
/* Connected route. */
if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_info ("%s %s %s proto %s",
- h->nlmsg_type == RTM_NEWROUTE ? "RTM_NEWROUTE" : "RTM_DELROUTE",
- rtm->rtm_family == AF_INET ? "ipv4" : "ipv6",
- rtm->rtm_type == RTN_UNICAST ? "unicast" : "multicast",
- lookup (rtproto_str, rtm->rtm_protocol));
+ zlog_debug ("%s %s %s proto %s",
+ h->nlmsg_type ==
+ RTM_NEWROUTE ? "RTM_NEWROUTE" : "RTM_DELROUTE",
+ rtm->rtm_family == AF_INET ? "ipv4" : "ipv6",
+ rtm->rtm_type == RTN_UNICAST ? "unicast" : "multicast",
+ lookup (rtproto_str, rtm->rtm_protocol));
if (rtm->rtm_type != RTN_UNICAST)
{
}
table = rtm->rtm_table;
- if (table != RT_TABLE_MAIN && table != rtm_table_default)
+ if (table != RT_TABLE_MAIN && table != zebrad.rtm_table_default)
{
return 0;
}
- len = h->nlmsg_len - NLMSG_LENGTH(sizeof (struct rtmsg));
+ len = h->nlmsg_len - NLMSG_LENGTH (sizeof (struct rtmsg));
if (len < 0)
return -1;
zlog_warn ("netlink_route_change(): no src len");
return 0;
}
-
+
index = 0;
dest = NULL;
gate = NULL;
p.prefixlen = rtm->rtm_dst_len;
if (IS_ZEBRA_DEBUG_KERNEL)
- {
- if (h->nlmsg_type == RTM_NEWROUTE)
- zlog_info ("RTM_NEWROUTE %s/%d",
- inet_ntoa (p.prefix), p.prefixlen);
- else
- zlog_info ("RTM_DELROUTE %s/%d",
- inet_ntoa (p.prefix), p.prefixlen);
- }
+ {
+ if (h->nlmsg_type == RTM_NEWROUTE)
+ zlog_debug ("RTM_NEWROUTE %s/%d",
+ inet_ntoa (p.prefix), p.prefixlen);
+ else
+ zlog_debug ("RTM_DELROUTE %s/%d",
+ inet_ntoa (p.prefix), p.prefixlen);
+ }
if (h->nlmsg_type == RTM_NEWROUTE)
- rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table, 0, 0);
+ rib_add_ipv4 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table, 0, 0);
else
- rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table);
+ rib_delete_ipv4 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, table);
}
#ifdef HAVE_IPV6
p.prefixlen = rtm->rtm_dst_len;
if (IS_ZEBRA_DEBUG_KERNEL)
- {
- if (h->nlmsg_type == RTM_NEWROUTE)
- zlog_info ("RTM_NEWROUTE %s/%d",
- inet_ntop (AF_INET6, &p.prefix, buf, BUFSIZ),
- p.prefixlen);
- else
- zlog_info ("RTM_DELROUTE %s/%d",
- inet_ntop (AF_INET6, &p.prefix, buf, BUFSIZ),
- p.prefixlen);
- }
+ {
+ if (h->nlmsg_type == RTM_NEWROUTE)
+ zlog_debug ("RTM_NEWROUTE %s/%d",
+ inet_ntop (AF_INET6, &p.prefix, buf, BUFSIZ),
+ p.prefixlen);
+ else
+ zlog_debug ("RTM_DELROUTE %s/%d",
+ inet_ntop (AF_INET6, &p.prefix, buf, BUFSIZ),
+ p.prefixlen);
+ }
if (h->nlmsg_type == RTM_NEWROUTE)
- rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, 0);
+ rib_add_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, 0, 0, 0);
else
- rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, 0);
+ rib_delete_ipv6 (ZEBRA_ROUTE_KERNEL, 0, &p, gate, index, 0);
}
#endif /* HAVE_IPV6 */
{
int len;
struct ifinfomsg *ifi;
- struct rtattr *tb [IFLA_MAX + 1];
+ struct rtattr *tb[IFLA_MAX + 1];
struct interface *ifp;
char *name;
ifi = NLMSG_DATA (h);
- if (! (h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK))
+ if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK))
{
/* If this is not link add/delete message so print warning. */
zlog_warn ("netlink_link_change: wrong kernel message %d\n",
- h->nlmsg_type);
+ h->nlmsg_type);
return 0;
}
/* Looking up interface name. */
memset (tb, 0, sizeof tb);
netlink_parse_rtattr (tb, IFLA_MAX, IFLA_RTA (ifi), len);
+
+#ifdef IFLA_WIRELESS
+ /* check for wireless messages to ignore */
+ if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0))
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug ("%s: ignoring IFLA_WIRELESS message", __func__);
+ return 0;
+ }
+#endif /* IFLA_WIRELESS */
+
if (tb[IFLA_IFNAME] == NULL)
return -1;
- name = (char *)RTA_DATA(tb[IFLA_IFNAME]);
+ name = (char *) RTA_DATA (tb[IFLA_IFNAME]);
/* Add interface. */
if (h->nlmsg_type == RTM_NEWLINK)
{
ifp = if_lookup_by_name (name);
- if (ifp == NULL || ! CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
- {
- if (ifp == NULL)
- ifp = if_get_by_name (name);
+ if (ifp == NULL || !CHECK_FLAG (ifp->status, ZEBRA_INTERFACE_ACTIVE))
+ {
+ if (ifp == NULL)
+ ifp = if_get_by_name (name);
- ifp->ifindex = ifi->ifi_index;
- ifp->flags = ifi->ifi_flags & 0x0000fffff;
- ifp->mtu = *(int *)RTA_DATA (tb[IFLA_MTU]);
- ifp->metric = 1;
+ set_ifindex(ifp, ifi->ifi_index);
+ ifp->flags = ifi->ifi_flags & 0x0000fffff;
+ ifp->mtu6 = ifp->mtu = *(int *) RTA_DATA (tb[IFLA_MTU]);
+ ifp->metric = 1;
- /* If new link is added. */
- if_add_update(ifp);
- }
+ /* If new link is added. */
+ if_add_update (ifp);
+ }
else
- {
- /* Interface status change. */
- ifp->ifindex = ifi->ifi_index;
- ifp->mtu = *(int *)RTA_DATA (tb[IFLA_MTU]);
- ifp->metric = 1;
-
- if (if_is_operative (ifp))
- {
- ifp->flags = ifi->ifi_flags & 0x0000fffff;
- if (! if_is_operative (ifp))
- if_down (ifp);
- }
- else
- {
- ifp->flags = ifi->ifi_flags & 0x0000fffff;
- if (if_is_operative (ifp))
- if_up (ifp);
- }
- }
+ {
+ /* Interface status change. */
+ set_ifindex(ifp, ifi->ifi_index);
+ ifp->mtu6 = ifp->mtu = *(int *) RTA_DATA (tb[IFLA_MTU]);
+ ifp->metric = 1;
+
+ if (if_is_operative (ifp))
+ {
+ ifp->flags = ifi->ifi_flags & 0x0000fffff;
+ if (!if_is_operative (ifp))
+ if_down (ifp);
+ else
+ /* Must notify client daemons of new interface status. */
+ zebra_interface_up_update (ifp);
+ }
+ else
+ {
+ ifp->flags = ifi->ifi_flags & 0x0000fffff;
+ if (if_is_operative (ifp))
+ if_up (ifp);
+ }
+ }
}
else
{
ifp = if_lookup_by_name (name);
if (ifp == NULL)
- {
- zlog (NULL, LOG_WARNING, "interface %s is deleted but can't find",
+ {
+ zlog (NULL, LOG_WARNING, "interface %s is deleted but can't find",
name);
- return 0;
- }
-
+ return 0;
+ }
+
if_delete_update (ifp);
}
/* Interface lookup by netlink socket. */
int
-interface_lookup_netlink ()
+interface_lookup_netlink (void)
{
int ret;
int flags;
int snb_ret;
-
+
/*
* Change netlink socket flags to blocking to ensure we get
* a reply via nelink_parse_info
- */
- snb_ret = set_netlink_blocking(&netlink_cmd, &flags);
- if(snb_ret < 0)
- zlog (NULL, LOG_WARNING,
- "%s:%i Warning: Could not set netlink socket to blocking.",
- __FUNCTION__, __LINE__);
-
+ */
+ snb_ret = set_netlink_blocking (&netlink_cmd, &flags);
+ if (snb_ret < 0)
+ zlog (NULL, LOG_WARNING,
+ "%s:%i Warning: Could not set netlink socket to blocking.",
+ __FUNCTION__, __LINE__);
+
/* Get interface information. */
ret = netlink_request (AF_PACKET, RTM_GETLINK, &netlink_cmd);
if (ret < 0)
return ret;
#endif /* HAVE_IPV6 */
- /* restore socket flags */
- if(snb_ret == 0)
- set_netlink_nonblocking(&netlink_cmd, &flags);
+ /* restore socket flags */
+ if (snb_ret == 0)
+ set_netlink_nonblocking (&netlink_cmd, &flags);
return 0;
}
/* Routing table read function using netlink interface. Only called
bootstrap time. */
int
-netlink_route_read ()
+netlink_route_read (void)
{
int ret;
int flags;
int snb_ret;
-
+
/*
* Change netlink socket flags to blocking to ensure we get
* a reply via nelink_parse_info
- */
- snb_ret = set_netlink_blocking(&netlink_cmd, &flags);
- if(snb_ret < 0)
- zlog (NULL, LOG_WARNING,
- "%s:%i Warning: Could not set netlink socket to blocking.",
- __FUNCTION__, __LINE__);
-
+ */
+ snb_ret = set_netlink_blocking (&netlink_cmd, &flags);
+ if (snb_ret < 0)
+ zlog (NULL, LOG_WARNING,
+ "%s:%i Warning: Could not set netlink socket to blocking.",
+ __FUNCTION__, __LINE__);
+
/* Get IPv4 routing table. */
ret = netlink_request (AF_INET, RTM_GETROUTE, &netlink_cmd);
if (ret < 0)
#endif /* HAVE_IPV6 */
/* restore flags */
- if(snb_ret == 0)
- set_netlink_nonblocking(&netlink_cmd, &flags);
+ if (snb_ret == 0)
+ set_netlink_nonblocking (&netlink_cmd, &flags);
return 0;
}
int len;
struct rtattr *rta;
- len = RTA_LENGTH(alen);
+ len = RTA_LENGTH (alen);
- if (NLMSG_ALIGN(n->nlmsg_len) + len > maxlen)
+ if (NLMSG_ALIGN (n->nlmsg_len) + len > maxlen)
return -1;
- rta = (struct rtattr*) (((char*)n) + NLMSG_ALIGN (n->nlmsg_len));
+ rta = (struct rtattr *) (((char *) n) + NLMSG_ALIGN (n->nlmsg_len));
rta->rta_type = type;
rta->rta_len = len;
- memcpy (RTA_DATA(rta), data, alen);
+ memcpy (RTA_DATA (rta), data, alen);
n->nlmsg_len = NLMSG_ALIGN (n->nlmsg_len) + len;
return 0;
int len;
struct rtattr *subrta;
- len = RTA_LENGTH(alen);
+ len = RTA_LENGTH (alen);
- if (RTA_ALIGN(rta->rta_len) + len > maxlen)
+ if (RTA_ALIGN (rta->rta_len) + len > maxlen)
return -1;
- subrta = (struct rtattr*) (((char*)rta) + RTA_ALIGN (rta->rta_len));
+ subrta = (struct rtattr *) (((char *) rta) + RTA_ALIGN (rta->rta_len));
subrta->rta_type = type;
subrta->rta_len = len;
- memcpy (RTA_DATA(subrta), data, alen);
+ memcpy (RTA_DATA (subrta), data, alen);
rta->rta_len = NLMSG_ALIGN (rta->rta_len) + len;
return 0;
{
int len;
struct rtattr *rta;
-
- len = RTA_LENGTH(4);
-
+
+ len = RTA_LENGTH (4);
+
if (NLMSG_ALIGN (n->nlmsg_len) + len > maxlen)
return -1;
- rta = (struct rtattr*) (((char*)n) + NLMSG_ALIGN (n->nlmsg_len));
+ rta = (struct rtattr *) (((char *) n) + NLMSG_ALIGN (n->nlmsg_len));
rta->rta_type = type;
rta->rta_len = len;
- memcpy (RTA_DATA(rta), &data, 4);
+ memcpy (RTA_DATA (rta), &data, 4);
n->nlmsg_len = NLMSG_ALIGN (n->nlmsg_len) + len;
return 0;
{
int status;
struct sockaddr_nl snl;
- struct iovec iov = { (void*) n, n->nlmsg_len };
- struct msghdr msg = {(void*) &snl, sizeof snl, &iov, 1, NULL, 0, 0};
+ struct iovec iov = { (void *) n, n->nlmsg_len };
+ struct msghdr msg = { (void *) &snl, sizeof snl, &iov, 1, NULL, 0, 0 };
int flags = 0;
int snb_ret;
-
+ int save_errno;
+
memset (&snl, 0, sizeof snl);
snl.nl_family = AF_NETLINK;
-
- n->nlmsg_seq = ++netlink_cmd.seq;
+
+ n->nlmsg_seq = ++nl->seq;
/* Request an acknowledgement by setting NLM_F_ACK */
n->nlmsg_flags |= NLM_F_ACK;
-
- if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_info ("netlink_talk: %s type %s(%u), seq=%u", netlink_cmd.name,
- lookup (nlmsg_str, n->nlmsg_type), n->nlmsg_type,
- n->nlmsg_seq);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug ("netlink_talk: %s type %s(%u), seq=%u", nl->name,
+ lookup (nlmsg_str, n->nlmsg_type), n->nlmsg_type,
+ n->nlmsg_seq);
/* Send message to netlink interface. */
+ if (zserv_privs.change (ZPRIVS_RAISE))
+ zlog (NULL, LOG_ERR, "Can't raise privileges");
status = sendmsg (nl->sock, &msg, 0);
+ save_errno = errno;
+ if (zserv_privs.change (ZPRIVS_LOWER))
+ zlog (NULL, LOG_ERR, "Can't lower privileges");
+
if (status < 0)
{
zlog (NULL, LOG_ERR, "netlink_talk sendmsg() error: %s",
- strerror (errno));
+ safe_strerror (save_errno));
return -1;
}
-
+
/*
* Change socket flags for blocking I/O.
* This ensures we wait for a reply in netlink_parse_info().
*/
- snb_ret = set_netlink_blocking(nl, &flags);
- if(snb_ret < 0)
- zlog (NULL, LOG_WARNING,
- "%s:%i Warning: Could not set netlink socket to blocking.",
- __FUNCTION__, __LINE__);
+ snb_ret = set_netlink_blocking (nl, &flags);
+ if (snb_ret < 0)
+ zlog (NULL, LOG_WARNING,
+ "%s:%i Warning: Could not set netlink socket to blocking.",
+ __FUNCTION__, __LINE__);
/*
* Get reply from netlink socket.
* The reply should either be an acknowlegement or an error.
*/
status = netlink_parse_info (netlink_talk_filter, nl);
-
+
/* Restore socket flags for nonblocking I/O */
- if(snb_ret == 0)
- set_netlink_nonblocking(nl, &flags);
-
+ if (snb_ret == 0)
+ set_netlink_nonblocking (nl, &flags);
+
return status;
}
/* Routing table change via netlink interface. */
int
netlink_route (int cmd, int family, void *dest, int length, void *gate,
- int index, int zebra_flags, int table)
+ int index, int zebra_flags, int table)
{
int ret;
int bytelen;
struct sockaddr_nl snl;
int discard;
- struct
+ struct
{
struct nlmsghdr n;
struct rtmsg r;
else
discard = 0;
- if (cmd == RTM_NEWROUTE)
+ if (cmd == RTM_NEWROUTE)
{
req.r.rtm_protocol = RTPROT_ZEBRA;
req.r.rtm_scope = RT_SCOPE_UNIVERSE;
- if (discard) {
- if (zebra_flags & ZEBRA_FLAG_BLACKHOLE)
- req.r.rtm_type = RTN_BLACKHOLE;
- else if (zebra_flags & ZEBRA_FLAG_REJECT)
- req.r.rtm_type = RTN_UNREACHABLE;
- else assert(RTN_BLACKHOLE != RTN_UNREACHABLE); /* false */
- } else
- req.r.rtm_type = RTN_UNICAST;
+ if (discard)
+ {
+ if (zebra_flags & ZEBRA_FLAG_BLACKHOLE)
+ req.r.rtm_type = RTN_BLACKHOLE;
+ else if (zebra_flags & ZEBRA_FLAG_REJECT)
+ req.r.rtm_type = RTN_UNREACHABLE;
+ else
+ assert (RTN_BLACKHOLE != RTN_UNREACHABLE); /* false */
+ }
+ else
+ req.r.rtm_type = RTN_UNICAST;
}
if (dest)
addattr_l (&req.n, sizeof req, RTA_DST, dest, bytelen);
- if (! discard)
+ if (!discard)
{
if (gate)
- addattr_l (&req.n, sizeof req, RTA_GATEWAY, gate, bytelen);
+ addattr_l (&req.n, sizeof req, RTA_GATEWAY, gate, bytelen);
if (index > 0)
- addattr32 (&req.n, sizeof req, RTA_OIF, index);
+ addattr32 (&req.n, sizeof req, RTA_OIF, index);
}
/* Destination netlink address. */
snl.nl_family = AF_NETLINK;
/* Talk to netlink socket. */
- ret = netlink_talk (&req.n, &netlink);
+ ret = netlink_talk (&req.n, &netlink_cmd);
if (ret < 0)
return -1;
/* Routing table change via netlink interface. */
int
netlink_route_multipath (int cmd, struct prefix *p, struct rib *rib,
- int family)
+ int family)
{
int bytelen;
struct sockaddr_nl snl;
struct nexthop *nexthop = NULL;
int nexthop_num = 0;
- struct nlsock *nl;
int discard;
- struct
+ struct
{
struct nlmsghdr n;
struct rtmsg r;
req.r.rtm_table = rib->table;
req.r.rtm_dst_len = p->prefixlen;
-#ifdef RTM_F_EQUALIZE
- req.r.rtm_flags |= RTM_F_EQUALIZE;
-#endif /* RTM_F_EQUALIZE */
-
- if ((rib->flags & ZEBRA_FLAG_BLACKHOLE)
- || (rib->flags & ZEBRA_FLAG_REJECT))
+ if ((rib->flags & ZEBRA_FLAG_BLACKHOLE) || (rib->flags & ZEBRA_FLAG_REJECT))
discard = 1;
else
discard = 0;
- if (cmd == RTM_NEWROUTE)
+ if (cmd == RTM_NEWROUTE)
{
req.r.rtm_protocol = RTPROT_ZEBRA;
req.r.rtm_scope = RT_SCOPE_UNIVERSE;
- if (discard) {
- if (rib->flags & ZEBRA_FLAG_BLACKHOLE)
- req.r.rtm_type = RTN_BLACKHOLE;
- else if (rib->flags & ZEBRA_FLAG_REJECT)
- req.r.rtm_type = RTN_UNREACHABLE;
- else assert(RTN_BLACKHOLE != RTN_UNREACHABLE); /* false */
- } else
- req.r.rtm_type = RTN_UNICAST;
+ if (discard)
+ {
+ if (rib->flags & ZEBRA_FLAG_BLACKHOLE)
+ req.r.rtm_type = RTN_BLACKHOLE;
+ else if (rib->flags & ZEBRA_FLAG_REJECT)
+ req.r.rtm_type = RTN_UNREACHABLE;
+ else
+ assert (RTN_BLACKHOLE != RTN_UNREACHABLE); /* false */
+ }
+ else
+ req.r.rtm_type = RTN_UNICAST;
}
addattr_l (&req.n, sizeof req, RTA_DST, &p->u.prefix, bytelen);
if (discard)
{
if (cmd == RTM_NEWROUTE)
- for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
- SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+ for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
goto skip;
}
if (rib->nexthop_active_num == 1 || MULTIPATH_NUM == 1)
{
for (nexthop = rib->nexthop; nexthop; nexthop = nexthop->next)
- {
- if ((cmd == RTM_NEWROUTE
- && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
- || (cmd == RTM_DELROUTE
- && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)))
- {
- if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
- {
- if (nexthop->rtype == NEXTHOP_TYPE_IPV4
- || nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX)
- addattr_l (&req.n, sizeof req, RTA_GATEWAY,
- &nexthop->rgate.ipv4, bytelen);
+ {
+
+ if ((cmd == RTM_NEWROUTE
+ && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ || (cmd == RTM_DELROUTE
+ && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)))
+ {
+
+ if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ zlog_debug
+ ("netlink_route_multipath() (recursive, 1 hop): "
+ "%s %s/%d, type %s", lookup (nlmsg_str, cmd),
#ifdef HAVE_IPV6
- if (nexthop->rtype == NEXTHOP_TYPE_IPV6
- || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX
- || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME)
- addattr_l (&req.n, sizeof req, RTA_GATEWAY,
- &nexthop->rgate.ipv6, bytelen);
+ (family == AF_INET) ? inet_ntoa (p->u.prefix4) :
+ inet6_ntoa (p->u.prefix6),
+#else
+ inet_ntoa (p->u.prefix4),
#endif /* HAVE_IPV6 */
- if (nexthop->rtype == NEXTHOP_TYPE_IFINDEX
- || nexthop->rtype == NEXTHOP_TYPE_IFNAME
- || nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX
- || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX
- || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME)
- addattr32 (&req.n, sizeof req, RTA_OIF,
- nexthop->rifindex);
- }
- else
- {
- if (nexthop->type == NEXTHOP_TYPE_IPV4
- || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX)
- addattr_l (&req.n, sizeof req, RTA_GATEWAY,
- &nexthop->gate.ipv4, bytelen);
+
+ p->prefixlen, nexthop_types_desc[nexthop->rtype]);
+ }
+
+ if (nexthop->rtype == NEXTHOP_TYPE_IPV4
+ || nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX)
+ {
+ addattr_l (&req.n, sizeof req, RTA_GATEWAY,
+ &nexthop->rgate.ipv4, bytelen);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (recursive, "
+ "1 hop): nexthop via %s if %u",
+ inet_ntoa (nexthop->rgate.ipv4),
+ nexthop->rifindex);
+ }
#ifdef HAVE_IPV6
- if (nexthop->type == NEXTHOP_TYPE_IPV6
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX)
- addattr_l (&req.n, sizeof req, RTA_GATEWAY,
- &nexthop->gate.ipv6, bytelen);
+ if (nexthop->rtype == NEXTHOP_TYPE_IPV6
+ || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX
+ || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME)
+ {
+ addattr_l (&req.n, sizeof req, RTA_GATEWAY,
+ &nexthop->rgate.ipv6, bytelen);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (recursive, "
+ "1 hop): nexthop via %s if %u",
+ inet6_ntoa (nexthop->rgate.ipv6),
+ nexthop->rifindex);
+ }
#endif /* HAVE_IPV6 */
- if (nexthop->type == NEXTHOP_TYPE_IFINDEX
- || nexthop->type == NEXTHOP_TYPE_IFNAME
- || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME)
- addattr32 (&req.n, sizeof req, RTA_OIF, nexthop->ifindex);
- }
-
- if (cmd == RTM_NEWROUTE)
- SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
-
- nexthop_num++;
- break;
- }
- }
+ if (nexthop->rtype == NEXTHOP_TYPE_IFINDEX
+ || nexthop->rtype == NEXTHOP_TYPE_IFNAME
+ || nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX
+ || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX
+ || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME)
+ {
+ addattr32 (&req.n, sizeof req, RTA_OIF,
+ nexthop->rifindex);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (recursive, "
+ "1 hop): nexthop via if %u",
+ nexthop->rifindex);
+ }
+ }
+ else
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ zlog_debug
+ ("netlink_route_multipath() (single hop): "
+ "%s %s/%d, type %s", lookup (nlmsg_str, cmd),
+#ifdef HAVE_IPV6
+ (family == AF_INET) ? inet_ntoa (p->u.prefix4) :
+ inet6_ntoa (p->u.prefix6),
+#else
+ inet_ntoa (p->u.prefix4),
+#endif /* HAVE_IPV6 */
+ p->prefixlen, nexthop_types_desc[nexthop->type]);
+ }
+
+ if (nexthop->type == NEXTHOP_TYPE_IPV4
+ || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX)
+ {
+ addattr_l (&req.n, sizeof req, RTA_GATEWAY,
+ &nexthop->gate.ipv4, bytelen);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (single hop): "
+ "nexthop via %s if %u",
+ inet_ntoa (nexthop->gate.ipv4),
+ nexthop->ifindex);
+ }
+#ifdef HAVE_IPV6
+ if (nexthop->type == NEXTHOP_TYPE_IPV6
+ || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME
+ || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX)
+ {
+ addattr_l (&req.n, sizeof req, RTA_GATEWAY,
+ &nexthop->gate.ipv6, bytelen);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (single hop): "
+ "nexthop via %s if %u",
+ inet6_ntoa (nexthop->gate.ipv6),
+ nexthop->ifindex);
+ }
+#endif /* HAVE_IPV6 */
+ if (nexthop->type == NEXTHOP_TYPE_IFINDEX
+ || nexthop->type == NEXTHOP_TYPE_IFNAME
+ || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX
+ || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX
+ || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME)
+ {
+ addattr32 (&req.n, sizeof req, RTA_OIF, nexthop->ifindex);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (single hop): "
+ "nexthop via if %u", nexthop->ifindex);
+ }
+ }
+
+ if (cmd == RTM_NEWROUTE)
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+
+ nexthop_num++;
+ break;
+ }
+ }
}
else
{
struct rtnexthop *rtnh;
rta->rta_type = RTA_MULTIPATH;
- rta->rta_len = RTA_LENGTH(0);
- rtnh = RTA_DATA(rta);
+ rta->rta_len = RTA_LENGTH (0);
+ rtnh = RTA_DATA (rta);
nexthop_num = 0;
for (nexthop = rib->nexthop;
- nexthop && (MULTIPATH_NUM == 0 || nexthop_num < MULTIPATH_NUM);
- nexthop = nexthop->next)
- {
- if ((cmd == RTM_NEWROUTE
- && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
- || (cmd == RTM_DELROUTE
- && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)))
- {
- nexthop_num++;
-
- rtnh->rtnh_len = sizeof (*rtnh);
- rtnh->rtnh_flags = 0;
- rtnh->rtnh_hops = 0;
- rta->rta_len += rtnh->rtnh_len;
-
- if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
- {
- if (nexthop->rtype == NEXTHOP_TYPE_IPV4
- || nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX)
+ nexthop && (MULTIPATH_NUM == 0 || nexthop_num < MULTIPATH_NUM);
+ nexthop = nexthop->next)
+ {
+ if ((cmd == RTM_NEWROUTE
+ && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_ACTIVE))
+ || (cmd == RTM_DELROUTE
+ && CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB)))
+ {
+ nexthop_num++;
+
+ rtnh->rtnh_len = sizeof (*rtnh);
+ rtnh->rtnh_flags = 0;
+ rtnh->rtnh_hops = 0;
+ rta->rta_len += rtnh->rtnh_len;
+
+ if (CHECK_FLAG (nexthop->flags, NEXTHOP_FLAG_RECURSIVE))
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ zlog_debug ("netlink_route_multipath() "
+ "(recursive, multihop): %s %s/%d type %s",
+ lookup (nlmsg_str, cmd),
+#ifdef HAVE_IPV6
+ (family == AF_INET) ? inet_ntoa (p->u.prefix4) :
+ inet6_ntoa (p->u.prefix6),
+#else
+ inet_ntoa (p->u.prefix4),
+#endif /* HAVE_IPV6 */
+ p->prefixlen, nexthop_types_desc[nexthop->rtype]);
+ }
+ if (nexthop->rtype == NEXTHOP_TYPE_IPV4
+ || nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX)
+ {
+ rta_addattr_l (rta, 4096, RTA_GATEWAY,
+ &nexthop->rgate.ipv4, bytelen);
+ rtnh->rtnh_len += sizeof (struct rtattr) + 4;
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (recursive, "
+ "multihop): nexthop via %s if %u",
+ inet_ntoa (nexthop->rgate.ipv4),
+ nexthop->rifindex);
+ }
+#ifdef HAVE_IPV6
+ if (nexthop->rtype == NEXTHOP_TYPE_IPV6
+ || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME
+ || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX)
{
rta_addattr_l (rta, 4096, RTA_GATEWAY,
- &nexthop->rgate.ipv4, bytelen);
- rtnh->rtnh_len += sizeof (struct rtattr) + 4;
+ &nexthop->rgate.ipv6, bytelen);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (recursive, "
+ "multihop): nexthop via %s if %u",
+ inet6_ntoa (nexthop->rgate.ipv6),
+ nexthop->rifindex);
}
-#ifdef HAVE_IPV6
- if (nexthop->rtype == NEXTHOP_TYPE_IPV6
- || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME
- || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX)
- rta_addattr_l (rta, 4096, RTA_GATEWAY,
- &nexthop->rgate.ipv6, bytelen);
#endif /* HAVE_IPV6 */
- /* ifindex */
- if (nexthop->rtype == NEXTHOP_TYPE_IFINDEX
- || nexthop->rtype == NEXTHOP_TYPE_IFNAME
- || nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX
- || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX
- || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME)
- rtnh->rtnh_ifindex = nexthop->rifindex;
- else
- rtnh->rtnh_ifindex = 0;
- }
- else
- {
- if (nexthop->type == NEXTHOP_TYPE_IPV4
- || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX)
+ /* ifindex */
+ if (nexthop->rtype == NEXTHOP_TYPE_IFINDEX
+ || nexthop->rtype == NEXTHOP_TYPE_IFNAME
+ || nexthop->rtype == NEXTHOP_TYPE_IPV4_IFINDEX
+ || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFINDEX
+ || nexthop->rtype == NEXTHOP_TYPE_IPV6_IFNAME)
{
+ rtnh->rtnh_ifindex = nexthop->rifindex;
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (recursive, "
+ "multihop): nexthop via if %u",
+ nexthop->rifindex);
+ }
+ else
+ {
+ rtnh->rtnh_ifindex = 0;
+ }
+ }
+ else
+ {
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ {
+ zlog_debug ("netlink_route_multipath() (multihop): "
+ "%s %s/%d, type %s", lookup (nlmsg_str, cmd),
+#ifdef HAVE_IPV6
+ (family == AF_INET) ? inet_ntoa (p->u.prefix4) :
+ inet6_ntoa (p->u.prefix6),
+#else
+ inet_ntoa (p->u.prefix4),
+#endif /* HAVE_IPV6 */
+ p->prefixlen, nexthop_types_desc[nexthop->type]);
+ }
+ if (nexthop->type == NEXTHOP_TYPE_IPV4
+ || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX)
+ {
rta_addattr_l (rta, 4096, RTA_GATEWAY,
&nexthop->gate.ipv4, bytelen);
rtnh->rtnh_len += sizeof (struct rtattr) + 4;
- }
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (multihop): "
+ "nexthop via %s if %u",
+ inet_ntoa (nexthop->gate.ipv4),
+ nexthop->ifindex);
+ }
#ifdef HAVE_IPV6
- if (nexthop->type == NEXTHOP_TYPE_IPV6
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX)
- rta_addattr_l (rta, 4096, RTA_GATEWAY,
- &nexthop->gate.ipv6, bytelen);
+ if (nexthop->type == NEXTHOP_TYPE_IPV6
+ || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME
+ || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX)
+ {
+ rta_addattr_l (rta, 4096, RTA_GATEWAY,
+ &nexthop->gate.ipv6, bytelen);
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (multihop): "
+ "nexthop via %s if %u",
+ inet6_ntoa (nexthop->gate.ipv6),
+ nexthop->ifindex);
+ }
#endif /* HAVE_IPV6 */
- /* ifindex */
- if (nexthop->type == NEXTHOP_TYPE_IFINDEX
- || nexthop->type == NEXTHOP_TYPE_IFNAME
- || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME
- || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX)
- rtnh->rtnh_ifindex = nexthop->ifindex;
- else
- rtnh->rtnh_ifindex = 0;
- }
- rtnh = RTNH_NEXT(rtnh);
-
- if (cmd == RTM_NEWROUTE)
- SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
- }
- }
+ /* ifindex */
+ if (nexthop->type == NEXTHOP_TYPE_IFINDEX
+ || nexthop->type == NEXTHOP_TYPE_IFNAME
+ || nexthop->type == NEXTHOP_TYPE_IPV4_IFINDEX
+ || nexthop->type == NEXTHOP_TYPE_IPV6_IFNAME
+ || nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX)
+ {
+ rtnh->rtnh_ifindex = nexthop->ifindex;
+
+ if (IS_ZEBRA_DEBUG_KERNEL)
+ zlog_debug("netlink_route_multipath() (multihop): "
+ "nexthop via if %u", nexthop->ifindex);
+ }
+ else
+ {
+ rtnh->rtnh_ifindex = 0;
+ }
+ }
+ rtnh = RTNH_NEXT (rtnh);
+
+ if (cmd == RTM_NEWROUTE)
+ SET_FLAG (nexthop->flags, NEXTHOP_FLAG_FIB);
+ }
+ }
if (rta->rta_len > RTA_LENGTH (0))
- addattr_l (&req.n, 1024, RTA_MULTIPATH, RTA_DATA(rta),
- RTA_PAYLOAD(rta));
+ addattr_l (&req.n, 1024, RTA_MULTIPATH, RTA_DATA (rta),
+ RTA_PAYLOAD (rta));
}
/* If there is no useful nexthop then return. */
if (nexthop_num == 0)
{
if (IS_ZEBRA_DEBUG_KERNEL)
- zlog_info ("netlink_route_multipath(): No useful nexthop.");
+ zlog_debug ("netlink_route_multipath(): No useful nexthop.");
return 0;
}
- skip:
+skip:
/* Destination netlink address. */
memset (&snl, 0, sizeof snl);
snl.nl_family = AF_NETLINK;
- if (family == AF_INET)
- nl = &netlink_cmd;
- else
- nl = &netlink;
-
/* Talk to netlink socket. */
- return netlink_talk (&req.n, nl);
+ return netlink_talk (&req.n, &netlink_cmd);
}
int
/* Delete IPv6 route from the kernel. */
int
kernel_delete_ipv6_old (struct prefix_ipv6 *dest, struct in6_addr *gate,
- int index, int flags, int table)
+ unsigned int index, int flags, int table)
{
- return netlink_route (RTM_DELROUTE, AF_INET6, &dest->prefix, dest->prefixlen,
- gate, index, flags, table);
+ return netlink_route (RTM_DELROUTE, AF_INET6, &dest->prefix,
+ dest->prefixlen, gate, index, flags, table);
}
#endif /* HAVE_IPV6 */
\f
/* Interface address modification. */
int
netlink_address (int cmd, int family, struct interface *ifp,
- struct connected *ifc)
+ struct connected *ifc)
{
int bytelen;
struct prefix *p;
- struct
+ struct
{
struct nlmsghdr n;
struct ifaddrmsg ifa;
bytelen = (family == AF_INET ? 4 : 16);
- req.n.nlmsg_len = NLMSG_LENGTH (sizeof(struct ifaddrmsg));
+ req.n.nlmsg_len = NLMSG_LENGTH (sizeof (struct ifaddrmsg));
req.n.nlmsg_flags = NLM_F_REQUEST;
req.n.nlmsg_type = cmd;
req.ifa.ifa_family = family;
if (family == AF_INET && cmd == RTM_NEWADDR)
{
if (if_is_broadcast (ifp) && ifc->destination)
- {
- p = ifc->destination;
- addattr_l(&req.n, sizeof req, IFA_BROADCAST, &p->u.prefix, bytelen);
- }
+ {
+ p = ifc->destination;
+ addattr_l (&req.n, sizeof req, IFA_BROADCAST, &p->u.prefix,
+ bytelen);
+ }
}
if (CHECK_FLAG (ifc->flags, ZEBRA_IFA_SECONDARY))
SET_FLAG (req.ifa.ifa_flags, IFA_F_SECONDARY);
-
+
if (ifc->label)
addattr_l (&req.n, sizeof req, IFA_LABEL, ifc->label,
- strlen (ifc->label) + 1);
+ strlen (ifc->label) + 1);
return netlink_talk (&req.n, &netlink_cmd);
}
sock = THREAD_FD (thread);
ret = netlink_parse_info (netlink_information_fetch, &netlink);
- thread_add_read (master, kernel_read, NULL, netlink.sock);
+ thread_add_read (zebrad.master, kernel_read, NULL, netlink.sock);
return 0;
}
/* Exported interface function. This function simply calls
netlink_socket (). */
void
-kernel_init ()
+kernel_init (void)
{
unsigned long groups;
- groups = RTMGRP_LINK|RTMGRP_IPV4_ROUTE|RTMGRP_IPV4_IFADDR;
+ groups = RTMGRP_LINK | RTMGRP_IPV4_ROUTE | RTMGRP_IPV4_IFADDR;
#ifdef HAVE_IPV6
- groups |= RTMGRP_IPV6_ROUTE|RTMGRP_IPV6_IFADDR;
+ groups |= RTMGRP_IPV6_ROUTE | RTMGRP_IPV6_IFADDR;
#endif /* HAVE_IPV6 */
netlink_socket (&netlink, groups);
netlink_socket (&netlink_cmd, 0);
/* Register kernel socket. */
if (netlink.sock > 0)
- thread_add_read (master, kernel_read, NULL, netlink.sock);
+ thread_add_read (zebrad.master, kernel_read, NULL, netlink.sock);
}
projects / mirror_frr.git / blobdiff