diff options
Diffstat (limited to 'extras/router-plugin/devices/rtnetlink/netns.c')
| -rw-r--r-- | extras/router-plugin/devices/rtnetlink/netns.c | 840 |
1 files changed, 0 insertions, 840 deletions
diff --git a/extras/router-plugin/devices/rtnetlink/netns.c b/extras/router-plugin/devices/rtnetlink/netns.c deleted file mode 100644 index 0d9986185..000000000 --- a/extras/router-plugin/devices/rtnetlink/netns.c +++ /dev/null @@ -1,840 +0,0 @@ -/* - * Copyright (c) 2021 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stddef.h> -#include <vlib/unix/unix.h> -#include <vlib/vlib.h> -#include <vnet/ethernet/ethernet.h> -#include <vnet/ip/format.h> -#include <vnet/ip/ip4_packet.h> -#include <vnet/ip/ip6_packet.h> - -#include "netns.h" -#include <hicn/util/sstrncpy.h> - -/* Enable some RTA values debug */ -//#define RTNL_CHECK - -#define is_nonzero(x) \ - ({ \ - u8 __is_zero_zero[sizeof (x)] = {}; \ - memcmp (__is_zero_zero, &x, sizeof (x)); \ - }) - -typedef struct -{ - u8 type; // Attribute identifier - u8 unique; // Part of the values uniquely identifying an entry - u16 offset; // Offset where stored in struct - u16 size; // Length of the attribute -} rtnl_mapping_t; - -#define ns_foreach_ifla \ - _ (IFLA_ADDRESS, hwaddr) \ - _ (IFLA_BROADCAST, broadcast) \ - _ (IFLA_IFNAME, ifname) \ - _ (IFLA_MASTER, master) \ - _ (IFLA_MTU, mtu) \ - _ (IFLA_QDISC, qdisc) - -static rtnl_mapping_t ns_ifmap[] = { -#define _(t, e) \ - { .type = t, \ - .offset = offsetof (ns_link_t, e), \ - .size = sizeof (((ns_link_t *) 0)->e) }, - ns_foreach_ifla -#undef _ - { .type = 0 } -}; - -u8 * -format_ns_link (u8 *s, va_list *args) -{ - ns_link_t *l = va_arg (*args, ns_link_t *); - s = format (s, "%s index %u", l->ifname, l->ifi.ifi_index); - return s; -} - -#define ns_foreach_rta \ - _ (RTA_DST, dst, 1) \ - _ (RTA_SRC, src, 1) \ - _ (RTA_GATEWAY, gateway, 1) \ - _ (RTA_IIF, iif, 1) \ - _ (RTA_OIF, oif, 1) \ - _ (RTA_PREFSRC, prefsrc, 0) \ - _ (RTA_TABLE, table, 0) \ - _ (RTA_PRIORITY, priority, 0) \ - _ (RTA_CACHEINFO, cacheinfo, 0) \ - _ (RTA_ENCAP, encap, 1) - -static rtnl_mapping_t ns_routemap[] = { -#define _(t, e, u) \ - { .type = t, \ - .unique = u, \ - .offset = offsetof (ns_route_t, e), \ - .size = sizeof (((ns_route_t *) 0)->e) }, - ns_foreach_rta -#undef _ - { .type = 0 } -}; - -u8 * -format_ns_route (u8 *s, va_list *args) -{ - ns_route_t *r = va_arg (*args, ns_route_t *); - void *format_ip = - r->rtm.rtm_family == AF_INET ? format_ip4_address : format_ip6_address; - s = format (s, "%U/%d", format_ip, r->dst, r->rtm.rtm_dst_len); - if (r->rtm.rtm_src_len) - s = format (s, " from %U/%d", format_ip, r->src, r->rtm.rtm_src_len); - if (is_nonzero (r->gateway)) - s = format (s, " via %U", format_ip, r->gateway); - if (r->iif) - s = format (s, " iif %d", r->iif); - if (r->oif) - s = format (s, " oif %d", r->oif); - if (is_nonzero (r->prefsrc)) - s = format (s, " src %U", format_ip, r->prefsrc); - if (r->table) - s = format (s, " table %d", r->table); - if (r->priority) - s = format (s, " priority %u", r->priority); - return s; -} - -#define ns_foreach_ifaddr \ - _ (IFA_ADDRESS, addr, 1) \ - _ (IFA_LOCAL, local, 1) \ - _ (IFA_LABEL, label, 0) \ - _ (IFA_BROADCAST, broadcast, 0) \ - _ (IFA_ANYCAST, anycast, 0) \ - _ (IFA_CACHEINFO, cacheinfo, 0) - -static rtnl_mapping_t ns_addrmap[] = { -#define _(t, e, u) \ - { .type = t, \ - .unique = u, \ - .offset = offsetof (ns_addr_t, e), \ - .size = sizeof (((ns_addr_t *) 0)->e) }, - ns_foreach_ifaddr -#undef _ - { .type = 0 } -}; - -u8 * -format_ns_addr (u8 *s, va_list *args) -{ - ns_addr_t *a = va_arg (*args, ns_addr_t *); - void *format_ip = - a->ifaddr.ifa_family == AF_INET ? format_ip4_address : format_ip6_address; - s = format (s, "%U/%d", format_ip, a->addr, a->ifaddr.ifa_prefixlen); - if (is_nonzero (a->label)) - s = format (s, " dev %s", a->label); - if (is_nonzero (a->broadcast)) - s = format (s, " broadcast %U", format_ip, a->broadcast); - if (is_nonzero (a->anycast)) - s = format (s, " anycast %U", format_ip, a->anycast); - if (is_nonzero (a->local)) - s = format (s, " local %U", format_ip, a->local); - return s; -} - -#ifndef NDA_RTA -#define NDA_RTA(r) \ - ((struct rtattr *) (((char *) (r)) + NLMSG_ALIGN (sizeof (struct ndmsg)))) -#define NDA_PAYLOAD(n) NLMSG_PAYLOAD (n, sizeof (struct ndmsg)) -#endif - -#define ns_foreach_neigh \ - _ (NDA_DST, dst, 1) \ - _ (NDA_LLADDR, lladdr, 0) \ - _ (NDA_PROBES, probes, 0) \ - _ (NDA_CACHEINFO, cacheinfo, 0) - -static rtnl_mapping_t ns_neighmap[] = { -#define _(t, e, u) \ - { .type = t, \ - .unique = u, \ - .offset = offsetof (ns_neigh_t, e), \ - .size = sizeof (((ns_neigh_t *) 0)->e) }, - ns_foreach_neigh -#undef _ - { .type = 0 } -}; - -u8 * -format_ns_neigh (u8 *s, va_list *args) -{ - ns_neigh_t *n = va_arg (*args, ns_neigh_t *); - void *format_ip = - n->nd.ndm_family == AF_INET ? format_ip4_address : format_ip6_address; - s = format (s, "%U", format_ip, n->dst); - if (is_nonzero (n->lladdr)) - s = format (s, " lladdr %U", format_ethernet_address, n->lladdr); - if (n->probes) - s = format (s, " probes %d", n->probes); - return s; -} - -typedef struct -{ - void (*notify) (void *obj, netns_type_t type, u32 flags, uword opaque); - uword opaque; - u32 netns_index; -} netns_handle_t; - -typedef struct -{ - netns_t netns; - u32 rtnl_handle; - u32 subscriber_count; -} netns_p; - -typedef struct -{ - netns_p *netnss; - netns_handle_t *handles; -} netns_main_t; - -netns_main_t netns_main; - -static int -rtnl_parse_rtattr (struct rtattr *db[], size_t max, struct rtattr *rta, - size_t len) -{ - for (; RTA_OK (rta, len); rta = RTA_NEXT (rta, len)) - { - if (rta->rta_type <= max) - db[rta->rta_type] = rta; -#ifdef RTNL_CHECK - else - clib_warning ("RTA type too high: %d", rta->rta_type); -#endif - } - - if (len) - { - clib_warning ("rattr lenght mistmatch %d %d len", (int) len, - (int) rta->rta_len); - return -1; - } - return 0; -} - -/* - * Debug function to display when - * we receive an RTA that I forgot in - * the mapping table (there are so many of them). - */ -#ifdef RTNL_CHECK -static void -rtnl_entry_check (struct rtattr *rtas[], size_t rta_len, rtnl_mapping_t map[], - char *logstr) -{ - int i; - for (i = 0; i < rta_len; i++) - { - if (!rtas[i]) - continue; - - rtnl_mapping_t *m = map; - for (m = map; m->type; m++) - { - if (m->type == rtas[i]->rta_type) - break; - } - if (!m->type) - clib_warning ("Unknown RTA type %d (%s)", rtas[i]->rta_type, logstr); - } -} -#endif - -/* - * Check if the provided entry matches the parsed and unique rtas - */ -static int -rtnl_entry_match (void *entry, struct rtattr *rtas[], rtnl_mapping_t map[]) -{ - u8 zero[1024] = {}; - for (; map->type != 0; map++) - { - struct rtattr *rta = rtas[map->type]; - size_t rta_len = rta ? RTA_PAYLOAD (rta) : 0; - if (!map->unique) - continue; - - if (rta && RTA_PAYLOAD (rta) > map->size) - { - clib_warning ("rta (type=%d len=%d) too long (max %d)", - rta->rta_type, rta->rta_len, map->size); - return -1; - } - - if ((rta && memcmp (RTA_DATA (rta), entry + map->offset, rta_len)) || - memcmp (entry + map->offset + rta_len, zero, map->size - rta_len)) - { - return 0; - } - } - return 1; -} - -static int -rtnl_entry_set (void *entry, struct rtattr *rtas[], rtnl_mapping_t map[], - int init) -{ - for (; map->type != 0; map++) - { - - struct rtattr *rta = rtas[map->type]; - - if (map->type == RTA_ENCAP && rta) - { - /*Data of RTA_ENCAP is a pointer to rta attributes for MPLS*/ - rta = (struct rtattr *) RTA_DATA (rta); - if (RTA_PAYLOAD (rta) > map->size) - { - clib_warning ("rta (type=%d len=%d) too long (max %d)", - rta->rta_type, rta->rta_len, map->size); - return -1; - } - memcpy (entry + map->offset, RTA_DATA (rta), map->size); - memset (entry + map->offset + map->size, 0, 0); - } - else if (rta) - { - if (RTA_PAYLOAD (rta) > map->size) - { - clib_warning ("rta (type=%d len=%d) too long (max %d)", - rta->rta_type, rta->rta_len, map->size); - return -1; - } - memcpy (entry + map->offset, RTA_DATA (rta), RTA_PAYLOAD (rta)); - memset (entry + map->offset + RTA_PAYLOAD (rta), 0, - map->size - RTA_PAYLOAD (rta)); - } - else if (init) - { - memset (entry + map->offset, 0, map->size); - } - } - return 0; -} - -void -netns_notify (netns_p *ns, void *obj, netns_type_t type, u32 flags) -{ - netns_main_t *nm = &netns_main; - netns_handle_t *h; - pool_foreach (h, nm->handles, { - if (h->netns_index == (ns - nm->netnss) && h->notify) - h->notify (obj, type, flags, h->opaque); - }) - ; -} - -static_always_inline int -mask_match (void *a, void *b, void *mask, size_t len) -{ - u8 *va = (u8 *) a; - u8 *vb = (u8 *) b; - u8 *vm = (u8 *) mask; - while (len--) - { - if ((va[len] ^ vb[len]) & vm[len]) - return 0; - } - return 1; -} - -static ns_link_t * -ns_get_link (netns_p *ns, struct ifinfomsg *ifi, struct rtattr *rtas[]) -{ - ns_link_t *link; - pool_foreach (link, ns->netns.links, { - if (ifi->ifi_index == link->ifi.ifi_index) - return link; - }) - ; - return NULL; -} - -static int -ns_rcv_link (netns_p *ns, struct nlmsghdr *hdr) -{ - ns_link_t *link; - struct ifinfomsg *ifi; - struct rtattr *rtas[IFLA_MAX + 1] = {}; - size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); - - if (datalen < sizeof (*ifi)) - return -1; - - ifi = NLMSG_DATA (hdr); - if ((datalen > NLMSG_ALIGN (sizeof (*ifi))) && - rtnl_parse_rtattr (rtas, IFLA_MAX, IFLA_RTA (ifi), IFLA_PAYLOAD (hdr))) - { - return -1; - } -#ifdef RTNL_CHECK - rtnl_entry_check (rtas, IFLA_MAX + 1, ns_ifmap, "link"); -#endif - - link = ns_get_link (ns, ifi, rtas); - - if (hdr->nlmsg_type == RTM_DELLINK) - { - if (!link) - return -1; - pool_put (ns->netns.links, link); - netns_notify (ns, link, NETNS_TYPE_LINK, NETNS_F_DEL); - return 0; - } - - if (!link) - { - pool_get (ns->netns.links, link); - rtnl_entry_set (link, rtas, ns_ifmap, 1); - } - else - { - rtnl_entry_set (link, rtas, ns_ifmap, 0); - } - - link->ifi = *ifi; - link->last_updated = vlib_time_now (vlib_get_main ()); - netns_notify (ns, link, NETNS_TYPE_LINK, NETNS_F_ADD); - return 0; -} - -static ns_route_t * -ns_get_route (netns_p *ns, struct rtmsg *rtm, struct rtattr *rtas[]) -{ - ns_route_t *route; - - // This describes the values which uniquely identify a route - struct rtmsg msg = { .rtm_family = 0xff, - .rtm_dst_len = 0xff, - .rtm_src_len = 0xff, - .rtm_table = 0xff, - .rtm_protocol = 0xff, - .rtm_type = 0xff }; - - pool_foreach (route, ns->netns.routes, { - if (mask_match (&route->rtm, rtm, &msg, sizeof (struct rtmsg)) && - rtnl_entry_match (route, rtas, ns_routemap)) - return route; - }) - ; - return NULL; -} - -static int -ns_rcv_route (netns_p *ns, struct nlmsghdr *hdr) -{ - ns_route_t *route; - struct rtmsg *rtm; - struct rtattr *rtas[RTA_MAX + 1] = {}; - size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); - - if (datalen < sizeof (*rtm)) - return -1; - - rtm = NLMSG_DATA (hdr); - if ((datalen > NLMSG_ALIGN (sizeof (*rtm))) && - rtnl_parse_rtattr (rtas, RTA_MAX, RTM_RTA (rtm), RTM_PAYLOAD (hdr))) - { - return -1; - } -#ifdef RTNL_CHECK - rtnl_entry_check (rtas, RTA_MAX + 1, ns_routemap, "route"); -#endif - route = ns_get_route (ns, rtm, rtas); - - if (hdr->nlmsg_type == RTM_DELROUTE) - { - if (!route) - return -1; - pool_put (ns->netns.routes, route); - netns_notify (ns, route, NETNS_TYPE_ROUTE, NETNS_F_DEL); - return 0; - } - - if (!route) - { - pool_get (ns->netns.routes, route); - memset (route, 0, sizeof (*route)); - rtnl_entry_set (route, rtas, ns_routemap, 1); - } - else - { - rtnl_entry_set (route, rtas, ns_routemap, 0); - } - - route->rtm = *rtm; - route->last_updated = vlib_time_now (vlib_get_main ()); - netns_notify (ns, route, NETNS_TYPE_ROUTE, NETNS_F_ADD); - return 0; -} - -static ns_addr_t * -ns_get_addr (netns_p *ns, struct ifaddrmsg *ifaddr, struct rtattr *rtas[]) -{ - ns_addr_t *addr; - - // This describes the values which uniquely identify a route - struct ifaddrmsg msg = { - .ifa_family = 0xff, - .ifa_prefixlen = 0xff, - }; - - pool_foreach (addr, ns->netns.addresses, { - if (mask_match (&addr->ifaddr, ifaddr, &msg, sizeof (struct ifaddrmsg)) && - rtnl_entry_match (addr, rtas, ns_addrmap)) - return addr; - }) - ; - return NULL; -} - -static int -ns_rcv_addr (netns_p *ns, struct nlmsghdr *hdr) -{ - ns_addr_t *addr; - struct ifaddrmsg *ifaddr; - struct rtattr *rtas[IFA_MAX + 1] = {}; - size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); - - if (datalen < sizeof (*ifaddr)) - return -1; - - ifaddr = NLMSG_DATA (hdr); - if ((datalen > NLMSG_ALIGN (sizeof (*ifaddr))) && - rtnl_parse_rtattr (rtas, IFA_MAX, IFA_RTA (ifaddr), IFA_PAYLOAD (hdr))) - { - return -1; - } -#ifdef RTNL_CHECK - rtnl_entry_check (rtas, IFA_MAX + 1, ns_addrmap, "addr"); -#endif - addr = ns_get_addr (ns, ifaddr, rtas); - - if (hdr->nlmsg_type == RTM_DELADDR) - { - if (!addr) - return -1; - pool_put (ns->netns.addresses, addr); - netns_notify (ns, addr, NETNS_TYPE_ADDR, NETNS_F_DEL); - return 0; - } - - if (!addr) - { - pool_get (ns->netns.addresses, addr); - memset (addr, 0, sizeof (*addr)); - rtnl_entry_set (addr, rtas, ns_addrmap, 1); - } - else - { - rtnl_entry_set (addr, rtas, ns_addrmap, 0); - } - - addr->ifaddr = *ifaddr; - addr->last_updated = vlib_time_now (vlib_get_main ()); - netns_notify (ns, addr, NETNS_TYPE_ADDR, NETNS_F_ADD); - return 0; -} - -static ns_neigh_t * -ns_get_neigh (netns_p *ns, struct ndmsg *nd, struct rtattr *rtas[]) -{ - ns_neigh_t *neigh; - - // This describes the values which uniquely identify a route - struct ndmsg msg = { - .ndm_family = 0xff, - .ndm_ifindex = 0xff, - }; - - pool_foreach (neigh, ns->netns.neighbors, { - if (mask_match (&neigh->nd, nd, &msg, sizeof (&msg)) && - rtnl_entry_match (neigh, rtas, ns_neighmap)) - return neigh; - }) - ; - return NULL; -} - -static int -ns_rcv_neigh (netns_p *ns, struct nlmsghdr *hdr) -{ - ns_neigh_t *neigh; - struct ndmsg *nd; - struct rtattr *rtas[NDA_MAX + 1] = {}; - size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); - - if (datalen < sizeof (*nd)) - return -1; - - nd = NLMSG_DATA (hdr); - if ((datalen > NLMSG_ALIGN (sizeof (*nd))) && - rtnl_parse_rtattr (rtas, NDA_MAX, NDA_RTA (nd), NDA_PAYLOAD (hdr))) - { - return -1; - } -#ifdef RTNL_CHECK - rtnl_entry_check (rtas, NDA_MAX + 1, ns_neighmap, "nd"); -#endif - neigh = ns_get_neigh (ns, nd, rtas); - - if (hdr->nlmsg_type == RTM_DELNEIGH) - { - if (!neigh) - return -1; - pool_put (ns->netns.neighbors, neigh); - netns_notify (ns, neigh, NETNS_TYPE_NEIGH, NETNS_F_DEL); - return 0; - } - - if (!neigh) - { - pool_get (ns->netns.neighbors, neigh); - memset (neigh, 0, sizeof (*neigh)); - rtnl_entry_set (neigh, rtas, ns_neighmap, 1); - } - else - { - rtnl_entry_set (neigh, rtas, ns_neighmap, 0); - } - - neigh->nd = *nd; - neigh->last_updated = vlib_time_now (vlib_get_main ()); - netns_notify (ns, neigh, NETNS_TYPE_NEIGH, NETNS_F_ADD); - return 0; -} - -#define ns_object_foreach \ - _ (neighbors, NETNS_TYPE_NEIGH) \ - _ (routes, NETNS_TYPE_ROUTE) \ - _ (addresses, NETNS_TYPE_ADDR) \ - _ (links, NETNS_TYPE_LINK) - -static void -ns_recv_error (rtnl_error_t err, uword o) -{ - // An error was received. Reset everything. - netns_p *ns = &netns_main.netnss[o]; - u32 *indexes = 0; - u32 *i = 0; - -#define _(pool, type) \ - pool_foreach_index (*i, ns->netns.pool, { vec_add1 (indexes, *i); }) \ - vec_foreach (i, indexes) \ - { \ - pool_put_index (ns->netns.pool, *i); \ - netns_notify (ns, &ns->netns.pool[*i], type, NETNS_F_DEL); \ - } \ - vec_reset_length (indexes); - - ns_object_foreach - -#undef _ - vec_free (indexes); -} - -static void -ns_recv_rtnl (struct nlmsghdr *hdr, uword o) -{ - netns_p *ns = &netns_main.netnss[o]; - switch (hdr->nlmsg_type) - { - case RTM_NEWROUTE: - case RTM_DELROUTE: - ns_rcv_route (ns, hdr); - break; - case RTM_NEWLINK: - case RTM_DELLINK: - ns_rcv_link (ns, hdr); - break; - case RTM_NEWADDR: - case RTM_DELADDR: - ns_rcv_addr (ns, hdr); - break; - case RTM_NEWNEIGH: - case RTM_DELNEIGH: - ns_rcv_neigh (ns, hdr); - break; - default: - clib_warning ("unknown rtnl type %d", hdr->nlmsg_type); - break; - } -} - -static void -netns_destroy (netns_p *ns) -{ - netns_main_t *nm = &netns_main; - rtnl_stream_close (ns->rtnl_handle); - pool_put (nm->netnss, ns); - pool_free (ns->netns.links); - pool_free (ns->netns.addresses); - pool_free (ns->netns.routes); - pool_free (ns->netns.neighbors); -} - -static netns_p * -netns_get (char *name) -{ - netns_main_t *nm = &netns_main; - netns_p *ns; - pool_foreach (ns, nm->netnss, { - if (!strcmp (name, ns->netns.name)) - return ns; - }) - ; - - if (strlen (name) > RTNL_NETNS_NAMELEN) - return NULL; - - pool_get (nm->netnss, ns); - rtnl_stream_t s = { - .recv_message = ns_recv_rtnl, - .error = ns_recv_error, - .opaque = (uword) (ns - nm->netnss), - }; - int rc = strcpy_s (s.name, sizeof (s.name), name); - if (rc != EOK) - return NULL; - - u32 handle; - if ((handle = rtnl_stream_open (&s)) == ~0) - { - pool_put (nm->netnss, ns); - return NULL; - } - - rc = strcpy_s (ns->netns.name, sizeof (ns->netns.name), name); - if (rc != EOK) - return NULL; - ns->netns.addresses = 0; - ns->netns.links = 0; - ns->netns.neighbors = 0; - ns->netns.routes = 0; - ns->subscriber_count = 0; - ns->rtnl_handle = handle; - return ns; -} - -u32 -netns_open (char *name, netns_sub_t *sub) -{ - netns_main_t *nm = &netns_main; - netns_p *ns; - netns_handle_t *p; - if (!(ns = netns_get (name))) - return ~0; - - pool_get (nm->handles, p); - p->netns_index = ns - nm->netnss; - p->notify = sub->notify; - p->opaque = sub->opaque; - ns->subscriber_count++; - return p - nm->handles; -} - -netns_t * -netns_getns (u32 handle) -{ - netns_main_t *nm = &netns_main; - netns_handle_t *h = pool_elt_at_index (nm->handles, handle); - netns_p *ns = pool_elt_at_index (nm->netnss, h->netns_index); - return &ns->netns; -} - -void -netns_close (u32 handle) -{ - netns_main_t *nm = &netns_main; - netns_handle_t *h = pool_elt_at_index (nm->handles, handle); - netns_p *ns = pool_elt_at_index (nm->netnss, h->netns_index); - pool_put (h, nm->handles); - ns->subscriber_count--; - if (!ns->subscriber_count) - netns_destroy (ns); -} - -void -netns_callme (u32 handle, char del) -{ - netns_main_t *nm = &netns_main; - netns_handle_t *h = pool_elt_at_index (nm->handles, handle); - netns_p *ns = pool_elt_at_index (nm->netnss, h->netns_index); - u32 i = 0; - if (!h->notify) - return; - -#define _(pool, type) \ - pool_foreach_index (i, ns->netns.pool, { \ - h->notify (&ns->netns.pool[i], type, del ? NETNS_F_DEL : NETNS_F_ADD, \ - h->opaque); \ - }) \ - ; - - ns_object_foreach -#undef _ -} - -u8 * -format_ns_object (u8 *s, va_list *args) -{ - netns_type_t t = va_arg (*args, netns_type_t); - void *o = va_arg (*args, void *); - switch (t) - { - case NETNS_TYPE_ADDR: - return format (s, "addr %U", format_ns_addr, o); - case NETNS_TYPE_ROUTE: - return format (s, "route %U", format_ns_route, o); - case NETNS_TYPE_LINK: - return format (s, "link %U", format_ns_link, o); - case NETNS_TYPE_NEIGH: - return format (s, "neigh %U", format_ns_neigh, o); - } - return s; -} - -u8 * -format_ns_flags (u8 *s, va_list *args) -{ - u32 flags = va_arg (*args, u32); - if (flags & NETNS_F_ADD) - s = format (s, "add"); - else if (flags & NETNS_F_DEL) - s = format (s, "del"); - else - s = format (s, "mod"); - return s; -} - -clib_error_t * -netns_init (vlib_main_t *vm) -{ - netns_main_t *nm = &netns_main; - nm->netnss = 0; - nm->handles = 0; - return 0; -} - -VLIB_INIT_FUNCTION (netns_init); |