diff options
Diffstat (limited to 'freebsd/sys/net/if.c')
-rw-r--r-- | freebsd/sys/net/if.c | 128 |
1 files changed, 61 insertions, 67 deletions
diff --git a/freebsd/sys/net/if.c b/freebsd/sys/net/if.c index d57e6983..37e1581b 100644 --- a/freebsd/sys/net/if.c +++ b/freebsd/sys/net/if.c @@ -34,6 +34,7 @@ * $FreeBSD$ */ +#include <rtems/bsd/local/opt_bpf.h> #include <rtems/bsd/local/opt_inet6.h> #include <rtems/bsd/local/opt_inet.h> @@ -1253,16 +1254,20 @@ static void if_vmove(struct ifnet *ifp, struct vnet *new_vnet) { struct if_clone *ifc; +#ifdef DEV_BPF u_int bif_dlt, bif_hdrlen; +#endif void *old; int rc; +#ifdef DEV_BPF /* * if_detach_internal() will call the eventhandler to notify * interface departure. That will detach if_bpf. We need to * safe the dlt and hdrlen so we can re-attach it later. */ bpf_get_bp_params(ifp->if_bpf, &bif_dlt, &bif_hdrlen); +#endif /* * Detach from current vnet, but preserve LLADDR info, do not @@ -1309,8 +1314,10 @@ if_vmove(struct ifnet *ifp, struct vnet *new_vnet) if_attach_internal(ifp, 1, ifc); +#ifdef DEV_BPF if (ifp->if_bpf == NULL) bpfattach(ifp, bif_dlt, bif_hdrlen); +#endif CURVNET_RESTORE(); } @@ -1447,14 +1454,12 @@ if_addgroup(struct ifnet *ifp, const char *groupname) return (EEXIST); } - if ((ifgl = (struct ifg_list *)malloc(sizeof(struct ifg_list), M_TEMP, - M_NOWAIT)) == NULL) { + if ((ifgl = malloc(sizeof(*ifgl), M_TEMP, M_NOWAIT)) == NULL) { IFNET_WUNLOCK(); return (ENOMEM); } - if ((ifgm = (struct ifg_member *)malloc(sizeof(struct ifg_member), - M_TEMP, M_NOWAIT)) == NULL) { + if ((ifgm = malloc(sizeof(*ifgm), M_TEMP, M_NOWAIT)) == NULL) { free(ifgl, M_TEMP); IFNET_WUNLOCK(); return (ENOMEM); @@ -1465,8 +1470,7 @@ if_addgroup(struct ifnet *ifp, const char *groupname) break; if (ifg == NULL) { - if ((ifg = (struct ifg_group *)malloc(sizeof(struct ifg_group), - M_TEMP, M_NOWAIT)) == NULL) { + if ((ifg = malloc(sizeof(*ifg), M_TEMP, M_NOWAIT)) == NULL) { free(ifgl, M_TEMP); free(ifgm, M_TEMP); IFNET_WUNLOCK(); @@ -1498,39 +1502,36 @@ if_addgroup(struct ifnet *ifp, const char *groupname) } /* - * Remove a group from an interface + * Helper function to remove a group out of an interface. Expects the global + * ifnet lock to be write-locked, and drops it before returning. */ -int -if_delgroup(struct ifnet *ifp, const char *groupname) +static void +_if_delgroup_locked(struct ifnet *ifp, struct ifg_list *ifgl, + const char *groupname) { - struct ifg_list *ifgl; - struct ifg_member *ifgm; - int freeifgl; + struct ifg_member *ifgm; + bool freeifgl; - IFNET_WLOCK(); - CK_STAILQ_FOREACH(ifgl, &ifp->if_groups, ifgl_next) - if (!strcmp(ifgl->ifgl_group->ifg_group, groupname)) - break; - if (ifgl == NULL) { - IFNET_WUNLOCK(); - return (ENOENT); - } + IFNET_WLOCK_ASSERT(); - freeifgl = 0; IF_ADDR_WLOCK(ifp); CK_STAILQ_REMOVE(&ifp->if_groups, ifgl, ifg_list, ifgl_next); IF_ADDR_WUNLOCK(ifp); - CK_STAILQ_FOREACH(ifgm, &ifgl->ifgl_group->ifg_members, ifgm_next) - if (ifgm->ifgm_ifp == ifp) + CK_STAILQ_FOREACH(ifgm, &ifgl->ifgl_group->ifg_members, ifgm_next) { + if (ifgm->ifgm_ifp == ifp) { + CK_STAILQ_REMOVE(&ifgl->ifgl_group->ifg_members, ifgm, + ifg_member, ifgm_next); break; - - if (ifgm != NULL) - CK_STAILQ_REMOVE(&ifgl->ifgl_group->ifg_members, ifgm, ifg_member, ifgm_next); + } + } if (--ifgl->ifgl_group->ifg_refcnt == 0) { - CK_STAILQ_REMOVE(&V_ifg_head, ifgl->ifgl_group, ifg_group, ifg_next); - freeifgl = 1; + CK_STAILQ_REMOVE(&V_ifg_head, ifgl->ifgl_group, ifg_group, + ifg_next); + freeifgl = true; + } else { + freeifgl = false; } IFNET_WUNLOCK(); @@ -1543,6 +1544,26 @@ if_delgroup(struct ifnet *ifp, const char *groupname) free(ifgl, M_TEMP); EVENTHANDLER_INVOKE(group_change_event, groupname); +} + +/* + * Remove a group from an interface + */ +int +if_delgroup(struct ifnet *ifp, const char *groupname) +{ + struct ifg_list *ifgl; + + IFNET_WLOCK(); + CK_STAILQ_FOREACH(ifgl, &ifp->if_groups, ifgl_next) + if (strcmp(ifgl->ifgl_group->ifg_group, groupname) == 0) + break; + if (ifgl == NULL) { + IFNET_WUNLOCK(); + return (ENOENT); + } + + _if_delgroup_locked(ifp, ifgl, groupname); return (0); } @@ -1553,44 +1574,13 @@ if_delgroup(struct ifnet *ifp, const char *groupname) static void if_delgroups(struct ifnet *ifp) { - struct ifg_list *ifgl; - struct ifg_member *ifgm; + struct ifg_list *ifgl; char groupname[IFNAMSIZ]; - int ifglfree; IFNET_WLOCK(); - while (!CK_STAILQ_EMPTY(&ifp->if_groups)) { - ifgl = CK_STAILQ_FIRST(&ifp->if_groups); - + while ((ifgl = CK_STAILQ_FIRST(&ifp->if_groups)) != NULL) { strlcpy(groupname, ifgl->ifgl_group->ifg_group, IFNAMSIZ); - - IF_ADDR_WLOCK(ifp); - CK_STAILQ_REMOVE(&ifp->if_groups, ifgl, ifg_list, ifgl_next); - IF_ADDR_WUNLOCK(ifp); - - CK_STAILQ_FOREACH(ifgm, &ifgl->ifgl_group->ifg_members, ifgm_next) - if (ifgm->ifgm_ifp == ifp) - break; - - if (ifgm != NULL) - CK_STAILQ_REMOVE(&ifgl->ifgl_group->ifg_members, ifgm, ifg_member, - ifgm_next); - ifglfree = 0; - if (--ifgl->ifgl_group->ifg_refcnt == 0) { - CK_STAILQ_REMOVE(&V_ifg_head, ifgl->ifgl_group, ifg_group, ifg_next); - ifglfree = 1; - } - - IFNET_WUNLOCK(); - epoch_wait_preempt(net_epoch_preempt); - free(ifgm, M_TEMP); - if (ifglfree) { - EVENTHANDLER_INVOKE(group_detach_event, - ifgl->ifgl_group); - free(ifgl->ifgl_group, M_TEMP); - } - EVENTHANDLER_INVOKE(group_change_event, groupname); - + _if_delgroup_locked(ifp, ifgl, groupname); IFNET_WLOCK(); } IFNET_WUNLOCK(); @@ -1678,7 +1668,7 @@ if_getgroupmembers(struct ifgroupreq *ifgr) IFNET_RLOCK(); CK_STAILQ_FOREACH(ifg, &V_ifg_head, ifg_next) - if (!strcmp(ifg->ifg_group, ifgr->ifgr_name)) + if (strcmp(ifg->ifg_group, ifgr->ifgr_name) == 0) break; if (ifg == NULL) { IFNET_RUNLOCK(); @@ -1957,10 +1947,13 @@ ifa_maintain_loopback_route(int cmd, const char *otype, struct ifaddr *ifa, error = rtrequest1_fib(cmd, &info, NULL, ifp->if_fib); - if (error != 0 && - !(cmd == RTM_ADD && error == EEXIST) && - !(cmd == RTM_DELETE && error == ENOENT)) - if_printf(ifp, "%s failed: %d\n", otype, error); + if (error == 0 || + (cmd == RTM_ADD && error == EEXIST) || + (cmd == RTM_DELETE && (error == ENOENT || error == ESRCH))) + return (error); + + log(LOG_DEBUG, "%s: %s failed for interface %s: %u\n", + __func__, otype, if_name(ifp), error); return (error); } @@ -2951,6 +2944,7 @@ ifhwioctl(u_long cmd, struct ifnet *ifp, caddr_t data, struct thread *td) case SIOCGIFGENERIC: case SIOCGIFRSSKEY: case SIOCGIFRSSHASH: + case SIOCGIFDOWNREASON: if (ifp->if_ioctl == NULL) return (EOPNOTSUPP); error = (*ifp->if_ioctl)(ifp, cmd, data); |