Signal problems with route installation to kernel tables.
This commit is contained in:
Ondrej Zajicek
parent
35c875f0d1
commit
32f95476a8
6 changed files with 37 additions and 23 deletions
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@ -321,6 +321,10 @@ typedef struct rta {
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#define RTD_MULTIPATH 5 /* Multipath route (nexthops != NULL) */
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#define RTD_NONE 6 /* Invalid RTD */
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/* Flags for net->n.flags, used by kernel syncer */
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#define KRF_INSTALLED 0x80 /* This route should be installed in the kernel */
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#define KRF_SYNC_ERROR 0x40 /* Error during kernel table synchronization */
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#define RTAF_CACHED 1 /* This is a cached rta */
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#define IGP_METRIC_UNKNOWN 0x80000000 /* Default igp_metric used when no other
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@ -1645,6 +1645,7 @@ rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, ea_list *tm
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byte tm[TM_DATETIME_BUFFER_SIZE], info[256];
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rta *a = e->attrs;
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int primary = (e->net->routes == e);
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int sync_error = (e->net->n.flags & KRF_SYNC_ERROR);
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struct mpnh *nh;
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rt_format_via(e, via);
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@ -1667,7 +1668,7 @@ rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, ea_list *tm
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else
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bsprintf(info, " (%d)", e->pref);
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cli_printf(c, -1007, "%-18s %s [%s %s%s]%s%s", ia, via, a->proto->name,
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tm, from, primary ? " *" : "", info);
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tm, from, primary ? (sync_error ? " !" : " *") : "", info);
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for (nh = a->nexthops; nh; nh = nh->next)
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cli_printf(c, -1007, "\tvia %I on %s weight %d", nh->gw, nh->iface->name, nh->weight + 1);
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if (d->verbose)
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@ -499,7 +499,7 @@ ospf_err_hook(sock * sk, int err)
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{
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// struct ospf_iface *ifa= (struct ospf_iface *) (sk->data);
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// struct proto *p = (struct proto *) (ifa->oa->po);
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log(L_ERR "OSPF: Socket error: %m", err);
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log(L_ERR "OSPF: Socket error: %M", err);
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}
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void
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@ -68,7 +68,7 @@ krt_capable(rte *e)
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memcpy(p, body, (l > sizeof(*p) ? sizeof(*p) : l));\
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body += l;}
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static void
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static int
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krt_sock_send(int cmd, rte *e)
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{
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net *net = e->net;
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@ -160,7 +160,7 @@ krt_sock_send(int cmd, rte *e)
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if(!i->addr) {
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log(L_ERR "KRT: interface %s has no IP addess", i->name);
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return;
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return -1;
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}
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fill_in_sockaddr(&gate, i->addr->ip, 0);
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@ -182,22 +182,27 @@ krt_sock_send(int cmd, rte *e)
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if ((l = write(rt_sock, (char *)&msg, l)) < 0) {
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log(L_ERR "KRT: Error sending route %I/%d to kernel", net->n.prefix, net->n.pxlen);
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return -1;
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}
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return 0;
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}
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void
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krt_set_notify(struct krt_proto *p UNUSED, net *net, rte *new, rte *old)
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krt_set_notify(struct krt_proto *p UNUSED, net *n, rte *new, rte *old)
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{
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int err = 0;
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if (old)
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{
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DBG("krt_remove_route(%I/%d)\n", net->n.prefix, net->n.pxlen);
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krt_sock_send(RTM_DELETE, old);
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}
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krt_sock_send(RTM_DELETE, old);
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if (new)
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{
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DBG("krt_add_route(%I/%d)\n", net->n.prefix, net->n.pxlen);
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krt_sock_send(RTM_ADD, new);
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}
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err = krt_sock_send(RTM_ADD, new);
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if (err < 0)
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n->n.flags |= KRF_SYNC_ERROR;
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else
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n->n.flags &= ~KRF_SYNC_ERROR;
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}
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static int
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@ -198,7 +198,7 @@ nl_exchange(struct nlmsghdr *pkt)
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break;
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log(L_WARN "nl_exchange: Unexpected reply received");
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}
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return nl_error(h);
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return nl_error(h) ? -1 : 0;
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}
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/*
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@ -616,7 +616,7 @@ nh_bufsize(struct mpnh *nh)
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return rv;
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}
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static void
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static int
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nl_send_route(struct krt_proto *p, rte *e, int new)
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{
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eattr *ea;
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@ -663,7 +663,7 @@ nl_send_route(struct krt_proto *p, rte *e, int new)
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break;
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case RTD_DEVICE:
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if (!a->iface)
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return;
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return -1;
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r.r.rtm_type = RTN_UNICAST;
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nl_add_attr_u32(&r.h, sizeof(r), RTA_OIF, a->iface->index);
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break;
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@ -684,17 +684,24 @@ nl_send_route(struct krt_proto *p, rte *e, int new)
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bug("krt_capable inconsistent with nl_send_route");
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}
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nl_exchange(&r.h);
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return nl_exchange(&r.h);
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}
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void
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krt_set_notify(struct krt_proto *p, net *n UNUSED, rte *new, rte *old)
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krt_set_notify(struct krt_proto *p, net *n, rte *new, rte *old)
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{
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int err = 0;
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if (old)
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nl_send_route(p, old, 0);
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if (new)
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nl_send_route(p, new, 1);
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err = nl_send_route(p, new, 1);
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if (err < 0)
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n->n.flags |= KRF_SYNC_ERROR;
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else
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n->n.flags &= ~KRF_SYNC_ERROR;
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}
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@ -19,7 +19,7 @@ struct kif_proto;
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#include "lib/krt-set.h"
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#include "lib/krt-iface.h"
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/* Flags stored in net->n.flags */
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/* Flags stored in net->n.flags, rest are in nest/route.h */
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#define KRF_VERDICT_MASK 0x0f
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#define KRF_CREATE 0 /* Not seen in kernel table */
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@ -28,9 +28,6 @@ struct kif_proto;
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#define KRF_DELETE 3 /* Should be deleted */
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#define KRF_IGNORE 4 /* To be ignored */
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#define KRF_INSTALLED 0x80 /* This route should be installed in the kernel */
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#define EA_KRT_PREFSRC EA_CODE(EAP_KRT, 0)
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#define EA_KRT_REALM EA_CODE(EAP_KRT, 1)
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