diff options
Diffstat (limited to 'extras/router-plugin/devices')
| -rw-r--r-- | extras/router-plugin/devices/rtnetlink/mapper.c | 279 | ||||
| -rw-r--r-- | extras/router-plugin/devices/rtnetlink/mapper.h | 9 | ||||
| -rw-r--r-- | extras/router-plugin/devices/rtnetlink/netns.c | 935 | ||||
| -rw-r--r-- | extras/router-plugin/devices/rtnetlink/netns.h | 63 | ||||
| -rw-r--r-- | extras/router-plugin/devices/rtnetlink/rtnl.c | 685 | ||||
| -rw-r--r-- | extras/router-plugin/devices/rtnetlink/rtnl.h | 24 | ||||
| -rw-r--r-- | extras/router-plugin/devices/rtnetlink/test.c | 197 |
7 files changed, 1170 insertions, 1022 deletions
diff --git a/extras/router-plugin/devices/rtnetlink/mapper.c b/extras/router-plugin/devices/rtnetlink/mapper.c index ed4fa5634..410d5527d 100644 --- a/extras/router-plugin/devices/rtnetlink/mapper.c +++ b/extras/router-plugin/devices/rtnetlink/mapper.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * 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: @@ -13,254 +13,273 @@ * limitations under the License. */ +#include <vnet/fib/fib.h> #include <vnet/ip/ip.h> #include <vnet/ip/lookup.h> -#include <vnet/fib/fib.h> -#include "netns.h" #include "mapper.h" +#include "netns.h" +#include <hicn/util/sstrncpy.h> -typedef struct { +typedef struct +{ int linux_ifindex; u32 sw_if_index; } mapper_map_t; -typedef struct { +typedef struct +{ char nsname[RTNL_NETNS_NAMELEN + 1]; mapper_map_t *mappings; - u32 netns_handle; //Used to receive notifications - u32 v4fib_index; //One fib index for the namespace + u32 netns_handle; // Used to receive notifications + u32 v4fib_index; // One fib index for the namespace u32 v6fib_index; } mapper_ns_t; -typedef struct { +typedef struct +{ mapper_ns_t *namespaces; } mapper_main_t; static mapper_main_t mapper_main; -mapper_map_t *mapper_get_by_ifindex(mapper_ns_t *ns, int ifindex) +mapper_map_t * +mapper_get_by_ifindex (mapper_ns_t *ns, int ifindex) { mapper_map_t *map; - pool_foreach(map, ns->mappings, { - if (ifindex == map->linux_ifindex) - return map; - }); + pool_foreach (map, ns->mappings, { + if (ifindex == map->linux_ifindex) + return map; + }) + ; return NULL; } -int mapper_add_del_route(mapper_ns_t *ns, ns_route_t *route, int del) +int +mapper_add_del_route (mapper_ns_t *ns, ns_route_t *route, int del) { mapper_main_t *mm = &mapper_main; - clib_warning("NS %d %s %U", ns - mm->namespaces, del?"del":"add", format_ns_route, route); + clib_warning ("NS %d %s %U", ns - mm->namespaces, del ? "del" : "add", + format_ns_route, route); - mapper_map_t *map = mapper_get_by_ifindex(ns, route->oif); + mapper_map_t *map = mapper_get_by_ifindex (ns, route->oif); if (!map) return 0; - if (route->rtm.rtm_family == AF_INET6) { - - //Filter-out multicast - if (route->rtm.rtm_dst_len >= 8 && route->dst[0] == 0xff) - return 0; - - fib_prefix_t prefix; - ip46_address_t nh; - - memset (&prefix, 0, sizeof (prefix)); - prefix.fp_len = route->rtm.rtm_dst_len; - prefix.fp_proto = FIB_PROTOCOL_IP6; - clib_memcpy (&prefix.fp_addr.ip6, route->dst, sizeof (prefix.fp_addr.ip6)); - - memset (&nh, 0, sizeof (nh)); - clib_memcpy (&nh.ip6, route->gateway, sizeof (nh.ip6)); - - fib_table_entry_path_add (ns->v6fib_index, &prefix, FIB_SOURCE_API, - FIB_ENTRY_FLAG_NONE, prefix.fp_proto, - &nh, map->sw_if_index, ns->v6fib_index, - 0 /* weight */, - (fib_mpls_label_t *) MPLS_LABEL_INVALID, - FIB_ROUTE_PATH_FLAG_NONE); - } else { - fib_prefix_t prefix; - ip46_address_t nh; - - memset (&prefix, 0, sizeof (prefix)); - prefix.fp_len = route->rtm.rtm_dst_len; - prefix.fp_proto = FIB_PROTOCOL_IP4; - clib_memcpy (&prefix.fp_addr.ip4, route->dst, sizeof (prefix.fp_addr.ip4)); - - memset (&nh, 0, sizeof (nh)); - clib_memcpy (&nh.ip4, route->gateway, sizeof (nh.ip4)); - - fib_table_entry_path_add (ns->v4fib_index, &prefix, FIB_SOURCE_API, - FIB_ENTRY_FLAG_NONE, prefix.fp_proto, - &nh, map->sw_if_index, ns->v4fib_index, - 0 /* weight */, - (fib_mpls_label_t *) MPLS_LABEL_INVALID, - FIB_ROUTE_PATH_FLAG_NONE); - } + if (route->rtm.rtm_family == AF_INET6) + { + + // Filter-out multicast + if (route->rtm.rtm_dst_len >= 8 && route->dst[0] == 0xff) + return 0; + + fib_prefix_t prefix; + ip_address_t nh; + + memset (&prefix, 0, sizeof (prefix)); + prefix.fp_len = route->rtm.rtm_dst_len; + prefix.fp_proto = FIB_PROTOCOL_IP6; + clib_memcpy (&prefix.fp_addr.ip6, route->dst, + sizeof (prefix.fp_addr.ip6)); + + memset (&nh, 0, sizeof (nh)); + clib_memcpy (&nh.ip6, route->gateway, sizeof (nh.ip6)); + + fib_table_entry_path_add ( + ns->v6fib_index, &prefix, FIB_SOURCE_API, FIB_ENTRY_FLAG_NONE, + prefix.fp_proto, &nh, map->sw_if_index, ns->v6fib_index, + 0 /* weight */, (fib_mpls_label_t *) MPLS_LABEL_INVALID, + FIB_ROUTE_PATH_FLAG_NONE); + } + else + { + fib_prefix_t prefix; + ip_address_t nh; + + memset (&prefix, 0, sizeof (prefix)); + prefix.fp_len = route->rtm.rtm_dst_len; + prefix.fp_proto = FIB_PROTOCOL_IP4; + clib_memcpy (&prefix.fp_addr.ip4, route->dst, + sizeof (prefix.fp_addr.ip4)); + + memset (&nh, 0, sizeof (nh)); + clib_memcpy (&nh.ip4, route->gateway, sizeof (nh.ip4)); + + fib_table_entry_path_add ( + ns->v4fib_index, &prefix, FIB_SOURCE_API, FIB_ENTRY_FLAG_NONE, + prefix.fp_proto, &nh, map->sw_if_index, ns->v4fib_index, + 0 /* weight */, (fib_mpls_label_t *) MPLS_LABEL_INVALID, + FIB_ROUTE_PATH_FLAG_NONE); + } return 0; } static void -mapper_netns_notify_cb(void *obj, netns_type_t type, - u32 flags, uword opaque) +mapper_netns_notify_cb (void *obj, netns_type_t type, u32 flags, uword opaque) { mapper_main_t *mm = &mapper_main; mapper_ns_t *ns = &mm->namespaces[(u32) opaque]; - ASSERT(!pool_is_free_index(mm->namespaces, (u32) opaque)); + ASSERT (!pool_is_free_index (mm->namespaces, (u32) opaque)); if (type != NETNS_TYPE_ROUTE) - return; //For now... + return; // For now... ns_route_t *route = obj; - if (flags & NETNS_F_DEL) { - mapper_add_del_route(ns, route, 1); - } else if (flags & NETNS_F_ADD) { - mapper_add_del_route(ns, route, 0); - } + if (flags & NETNS_F_DEL) + { + mapper_add_del_route (ns, route, 1); + } + else if (flags & NETNS_F_ADD) + { + mapper_add_del_route (ns, route, 0); + } } void -mapper_delmap(mapper_ns_t*ns, mapper_map_t *map) +mapper_delmap (mapper_ns_t *ns, mapper_map_t *map) { ns_route_t *route; - netns_t *netns = netns_getns(ns->netns_handle); - pool_foreach(route, netns->routes, { - if (route->oif == map->linux_ifindex) - mapper_add_del_route(ns, route, 1); - }); - pool_put(ns->mappings, map); + netns_t *netns = netns_getns (ns->netns_handle); + pool_foreach (route, netns->routes, { + if (route->oif == map->linux_ifindex) + mapper_add_del_route (ns, route, 1); + }) + ; + pool_put (ns->mappings, map); } mapper_map_t * -mapper_getmap(mapper_ns_t*ns, u32 sw_if_index, - int linux_ifindex, int create) +mapper_getmap (mapper_ns_t *ns, u32 sw_if_index, int linux_ifindex, int create) { mapper_map_t *map; - pool_foreach(map, ns->mappings, { - if (linux_ifindex == map->linux_ifindex) { - if (sw_if_index != map->sw_if_index) - return NULL; //Cannot have multiple mapping with the same ifindex - else - return map; + pool_foreach (map, ns->mappings, { + if (linux_ifindex == map->linux_ifindex) + { + if (sw_if_index != map->sw_if_index) + return NULL; // Cannot have multiple mapping with the same ifindex + else + return map; } - }); + }) + ; if (!create) return NULL; - pool_get(ns->mappings, map); + pool_get (ns->mappings, map); map->linux_ifindex = linux_ifindex; map->sw_if_index = sw_if_index; ip6_main.fib_index_by_sw_if_index[sw_if_index] = ns->v6fib_index; ip4_main.fib_index_by_sw_if_index[sw_if_index] = ns->v4fib_index; - //Load available routes + // Load available routes ns_route_t *route; - netns_t *netns = netns_getns(ns->netns_handle); - pool_foreach(route, netns->routes, { - if (route->oif == map->linux_ifindex) - mapper_add_del_route(ns, route, 0); - }); + netns_t *netns = netns_getns (ns->netns_handle); + pool_foreach (route, netns->routes, { + if (route->oif == map->linux_ifindex) + mapper_add_del_route (ns, route, 0); + }) + ; return map; } u32 -mapper_get_ns(char *nsname) +mapper_get_ns (char *nsname) { mapper_main_t *mm = &mapper_main; mapper_ns_t *ns; - pool_foreach(ns, mm->namespaces, { - if (!strcmp(nsname, ns->nsname)) - return ns - mm->namespaces; - }); + pool_foreach (ns, mm->namespaces, { + if (!strcmp (nsname, ns->nsname)) + return ns - mm->namespaces; + }) + ; return ~0; } int -mapper_add_del(u32 nsindex, int linux_ifindex, - u32 sw_if_index, int del) +mapper_add_del (u32 nsindex, int linux_ifindex, u32 sw_if_index, int del) { mapper_main_t *mm = &mapper_main; - //ip6_main_t *im6 = &ip6_main; + // ip6_main_t *im6 = &ip6_main; mapper_ns_t *ns = &mm->namespaces[nsindex]; mapper_map_t *map; - //vnet_sw_interface_t *iface = vnet_get_sw_interface(vnet_get_main(), sw_if_index); + // vnet_sw_interface_t *iface = vnet_get_sw_interface(vnet_get_main(), + // sw_if_index); - if (pool_is_free(mm->namespaces, ns)) + if (pool_is_free (mm->namespaces, ns)) return -1; /*if (!del) { if ((iface->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) && - im6->fib_index_by_sw_if_index[sw_if_index] != ~0) { + im6->fib_index_by_sw_if_index[sw_if_index] != ~0) { //A custom fib index will be used... - clib_warning("Cannot add interface with a custom fib index (current is %d)", - im6->fib_index_by_sw_if_index[sw_if_index]); - return -1; + clib_warning("Cannot add interface with a custom fib index (current is + %d)", im6->fib_index_by_sw_if_index[sw_if_index]); return -1; } }*/ - if (!(map = mapper_getmap(ns, sw_if_index, linux_ifindex, !del))) + if (!(map = mapper_getmap (ns, sw_if_index, linux_ifindex, !del))) return -1; if (del) - mapper_delmap(ns, map); + mapper_delmap (ns, map); return 0; } int -mapper_add_ns(char *nsname, u32 v4fib_index, u32 v6fib_index, u32 *nsindex) +mapper_add_ns (char *nsname, u32 v4fib_index, u32 v6fib_index, u32 *nsindex) { mapper_main_t *mm = &mapper_main; mapper_ns_t *ns; - if (mapper_get_ns(nsname) != ~0) - return -1; //Already exists + if (mapper_get_ns (nsname) != ~0) + return -1; // Already exists - pool_get(mm->namespaces, ns); - strcpy(ns->nsname, nsname); + pool_get (mm->namespaces, ns); + int rc = strcpy_s (ns->nsname, sizeof (ns->nsname), nsname); + if (rc != EOK) + return -1; ns->v4fib_index = v4fib_index; ns->v6fib_index = v6fib_index; ns->mappings = 0; netns_sub_t sub; sub.notify = mapper_netns_notify_cb; - sub.opaque = (uword)(ns - mm->namespaces); - if ((ns->netns_handle = netns_open(ns->nsname, &sub)) == ~0) { - pool_put(mm->namespaces, ns); - return -1; - } + sub.opaque = (uword) (ns - mm->namespaces); + if ((ns->netns_handle = netns_open (ns->nsname, &sub)) == ~0) + { + pool_put (mm->namespaces, ns); + return -1; + } *nsindex = ns - mm->namespaces; return 0; } int -mapper_del_ns(u32 nsindex) +mapper_del_ns (u32 nsindex) { mapper_main_t *mm = &mapper_main; mapper_ns_t *ns = &mm->namespaces[nsindex]; - if (pool_is_free(mm->namespaces, ns)) + if (pool_is_free (mm->namespaces, ns)) return -1; - //Remove all existing mappings + // Remove all existing mappings int i, *indexes = 0; - pool_foreach_index(i, ns->mappings, { - vec_add1(indexes, i); - }); - vec_foreach_index(i, indexes) { - mapper_delmap(ns, &ns->mappings[indexes[i]]); - } - vec_free(indexes); - - netns_close(ns->netns_handle); - pool_put(mm->namespaces, ns); + pool_foreach_index (i, ns->mappings, { vec_add1 (indexes, i); }) + ; + vec_foreach_index (i, indexes) + { + mapper_delmap (ns, &ns->mappings[indexes[i]]); + } + vec_free (indexes); + + netns_close (ns->netns_handle); + pool_put (mm->namespaces, ns); return 0; } clib_error_t * -mapper_init (vlib_main_t * vm) +mapper_init (vlib_main_t *vm) { mapper_main_t *mm = &mapper_main; mm->namespaces = 0; diff --git a/extras/router-plugin/devices/rtnetlink/mapper.h b/extras/router-plugin/devices/rtnetlink/mapper.h index 32e95d48f..436e5dc4d 100644 --- a/extras/router-plugin/devices/rtnetlink/mapper.h +++ b/extras/router-plugin/devices/rtnetlink/mapper.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * 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: @@ -28,8 +28,9 @@ * A mapped VPP interface must not have any configured fib. */ -int mapper_add_ns(char *nsname, u32 v4fib_index, u32 v6fib_index, u32 *nsindex); -int mapper_del_ns(u32 nsindex); -int mapper_add_del(u32 nsindex, int linux_ifindex, u32 sw_if_index, int del); +int mapper_add_ns (char *nsname, u32 v4fib_index, u32 v6fib_index, + u32 *nsindex); +int mapper_del_ns (u32 nsindex); +int mapper_add_del (u32 nsindex, int linux_ifindex, u32 sw_if_index, int del); #endif /* MAPPER_H_ */ diff --git a/extras/router-plugin/devices/rtnetlink/netns.c b/extras/router-plugin/devices/rtnetlink/netns.c index 19adb469a..0d9986185 100644 --- a/extras/router-plugin/devices/rtnetlink/netns.c +++ b/extras/router-plugin/devices/rtnetlink/netns.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * 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: @@ -13,190 +13,197 @@ * limitations under the License. */ - -#include <vlib/vlib.h> +#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 <vnet/ip/format.h> -#include <stddef.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)); \ +#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 +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) +#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) \ - }, +#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) +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); + 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) +#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) \ - }, +#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) +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); + 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); + 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); + 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); + 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); + s = format (s, " table %d", r->table); if (r->priority) - s = format(s, " priority %u", 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) +#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) \ - }, +#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); +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)) +#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) +#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) \ - }, +#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) +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); + 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); + s = format (s, " probes %d", n->probes); return s; } -typedef struct { - void (*notify)(void *obj, netns_type_t type, u32 flags, uword opaque); +typedef struct +{ + void (*notify) (void *obj, netns_type_t type, u32 flags, uword opaque); uword opaque; u32 netns_index; } netns_handle_t; -typedef struct { +typedef struct +{ netns_t netns; u32 rtnl_handle; u32 subscriber_count; } netns_p; -typedef struct { +typedef struct +{ netns_p *netnss; netns_handle_t *handles; } netns_main_t; @@ -204,22 +211,25 @@ typedef struct { 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; +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); + 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; - } + if (len) + { + clib_warning ("rattr lenght mistmatch %d %d len", (int) len, + (int) rta->rta_len); + return -1; + } return 0; } @@ -230,24 +240,24 @@ rtnl_parse_rtattr(struct rtattr *db[], size_t max, */ #ifdef RTNL_CHECK static void -rtnl_entry_check(struct rtattr *rtas[], - size_t rta_len, - rtnl_mapping_t map[], - char *logstr) +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; + 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); } - if (!m->type) - clib_warning("Unknown RTA type %d (%s)", rtas[i]->rta_type, logstr); - } } #endif @@ -255,433 +265,469 @@ rtnl_entry_check(struct rtattr *rtas[], * 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[]) +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; + 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); +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_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); - }); + 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) +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; - } + 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_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; - }); + 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_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)); + size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); - if(datalen < sizeof(*ifi)) + 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; - } + 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"); + rtnl_entry_check (rtas, IFLA_MAX + 1, ns_ifmap, "link"); #endif - link = ns_get_link(ns, ifi, rtas); + 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); - } + 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); + 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_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; - }); + // 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_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)); + size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); - if(datalen < sizeof(*rtm)) + 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; - } + 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"); + rtnl_entry_check (rtas, RTA_MAX + 1, ns_routemap, "route"); #endif - route = ns_get_route(ns, rtm, rtas); + 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 (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); - } + 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); + 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_get_addr (netns_p *ns, struct ifaddrmsg *ifaddr, struct rtattr *rtas[]) { ns_addr_t *addr; - //This describes the values which uniquely identify a route + // 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; - }); + 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_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)); + size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); - if(datalen < sizeof(*ifaddr)) + 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; - } + 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"); + rtnl_entry_check (rtas, IFA_MAX + 1, ns_addrmap, "addr"); #endif - addr = ns_get_addr(ns, ifaddr, rtas); + 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 (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); - } + 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); + 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_get_neigh (netns_p *ns, struct ndmsg *nd, struct rtattr *rtas[]) { ns_neigh_t *neigh; - //This describes the values which uniquely identify a route + // 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; - }); + 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_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)); + size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); - if(datalen < sizeof(*nd)) + 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; - } + 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"); + rtnl_entry_check (rtas, NDA_MAX + 1, ns_neighmap, "nd"); #endif - neigh = ns_get_neigh(ns, nd, rtas); + 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 (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); - } + 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); + 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) +#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) +ns_recv_error (rtnl_error_t err, uword o) { - //An error was received. Reset everything. + // 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); +#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); + vec_free (indexes); } static void -ns_recv_rtnl(struct nlmsghdr *hdr, uword o) +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; - } + 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_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); + 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_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; - }); + pool_foreach (ns, nm->netnss, { + if (!strcmp (name, ns->netns.name)) + return ns; + }) + ; - if (strlen(name) > RTNL_NETNS_NAMELEN) + if (strlen (name) > RTNL_NETNS_NAMELEN) return NULL; - pool_get(nm->netnss, ns); + pool_get (nm->netnss, ns); rtnl_stream_t s = { .recv_message = ns_recv_rtnl, .error = ns_recv_error, - .opaque = (uword)(ns - nm->netnss), + .opaque = (uword) (ns - nm->netnss), }; - strcpy(s.name, name); + 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; - } + if ((handle = rtnl_stream_open (&s)) == ~0) + { + pool_put (nm->netnss, ns); + return NULL; + } - strcpy(ns->netns.name, name); + 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; @@ -691,15 +737,16 @@ netns_get(char *name) return ns; } -u32 netns_open(char *name, netns_sub_t *sub) +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))) + if (!(ns = netns_get (name))) return ~0; - pool_get(nm->handles, p); + pool_get (nm->handles, p); p->netns_index = ns - nm->netnss; p->notify = sub->notify; p->opaque = sub->opaque; @@ -707,76 +754,82 @@ u32 netns_open(char *name, netns_sub_t *sub) return p - nm->handles; } -netns_t *netns_getns(u32 handle) +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); + 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) +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); + 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); + netns_destroy (ns); } -void netns_callme(u32 handle, char del) +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); + 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); \ - }); +#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); } - -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) +u8 * +format_ns_flags (u8 *s, va_list *args) { - u32 flags = va_arg(*args, u32); + u32 flags = va_arg (*args, u32); if (flags & NETNS_F_ADD) - s = format(s, "add"); + s = format (s, "add"); else if (flags & NETNS_F_DEL) - s = format(s, "del"); + s = format (s, "del"); else - s = format(s, "mod"); + s = format (s, "mod"); return s; } clib_error_t * -netns_init (vlib_main_t * vm) +netns_init (vlib_main_t *vm) { netns_main_t *nm = &netns_main; nm->netnss = 0; diff --git a/extras/router-plugin/devices/rtnetlink/netns.h b/extras/router-plugin/devices/rtnetlink/netns.h index 53effe5ce..b94356c3b 100644 --- a/extras/router-plugin/devices/rtnetlink/netns.h +++ b/extras/router-plugin/devices/rtnetlink/netns.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * 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: @@ -18,10 +18,10 @@ #include <vlib/vlib.h> -#include <sys/socket.h> -#include <linux/rtnetlink.h> #include <linux/netlink.h> +#include <linux/rtnetlink.h> #include <net/if.h> +#include <sys/socket.h> #include "rtnl.h" @@ -30,7 +30,8 @@ /*so far depth is fixed, looking into ways to be dynamic*/ #define MPLS_STACK_DEPTH 7 -typedef struct { +typedef struct +{ struct ifinfomsg ifi; u8 hwaddr[IFHWADDRLEN]; u8 broadcast[IFHWADDRLEN]; @@ -38,11 +39,13 @@ typedef struct { u32 mtu; u32 master; u8 qdisc[IFNAMSIZ]; - struct rtnl_link_stats stats; //This struct is big and only comes as a response to a request + struct rtnl_link_stats + stats; // This struct is big and only comes as a response to a request f64 last_updated; } ns_link_t; -typedef struct { +typedef struct +{ struct rtmsg rtm; u8 dst[16]; u8 src[16]; @@ -58,7 +61,8 @@ typedef struct { f64 last_updated; } ns_route_t; -typedef struct { +typedef struct +{ struct ifaddrmsg ifaddr; u8 addr[16]; u8 local[16]; @@ -69,7 +73,8 @@ typedef struct { f64 last_updated; } ns_addr_t; -typedef struct { +typedef struct +{ struct ndmsg nd; u8 dst[16]; u8 lladdr[IFHWADDRLEN]; @@ -78,28 +83,30 @@ typedef struct { f64 last_updated; } ns_neigh_t; -typedef struct { +typedef struct +{ char name[RTNL_NETNS_NAMELEN + 1]; - ns_link_t *links; + ns_link_t *links; ns_route_t *routes; - ns_addr_t *addresses; + ns_addr_t *addresses; ns_neigh_t *neighbors; } netns_t; - -typedef enum { +typedef enum +{ NETNS_TYPE_LINK, NETNS_TYPE_ROUTE, NETNS_TYPE_ADDR, NETNS_TYPE_NEIGH, } netns_type_t; -//Flags used in notification functions call -#define NETNS_F_ADD 0x01 -#define NETNS_F_DEL 0x02 +// Flags used in notification functions call +#define NETNS_F_ADD 0x01 +#define NETNS_F_DEL 0x02 -typedef struct { - void (*notify)(void *obj, netns_type_t type, u32 flags, uword opaque); +typedef struct +{ + void (*notify) (void *obj, netns_type_t type, u32 flags, uword opaque); uword opaque; } netns_sub_t; @@ -110,36 +117,36 @@ typedef struct { * existing routes (This is to protect against * synch. Vs asynch. issues). */ -u32 netns_open(char *name, netns_sub_t *sub); +u32 netns_open (char *name, netns_sub_t *sub); /* * Retrieves the namespace structure associated with a * given namespace handler. */ -netns_t *netns_getns(u32 handle); +netns_t *netns_getns (u32 handle); /* * Terminates a subscriber session. */ -void netns_close(u32 handle); +void netns_close (u32 handle); /* * Calls the callback associated with the handle * for all existing objects with the flags * set to (del?NETNS_F_DEL:NETNS_F_ADD). */ -void netns_callme(u32 handle, char del); +void netns_callme (u32 handle, char del); /* * netns struct format functions. * Taking the struct as single argument. */ -u8 *format_ns_neigh(u8 *s, va_list *args); -u8 *format_ns_addr(u8 *s, va_list *args); -u8 *format_ns_route(u8 *s, va_list *args); -u8 *format_ns_link(u8 *s, va_list *args); +u8 *format_ns_neigh (u8 *s, va_list *args); +u8 *format_ns_addr (u8 *s, va_list *args); +u8 *format_ns_route (u8 *s, va_list *args); +u8 *format_ns_link (u8 *s, va_list *args); -u8 *format_ns_object(u8 *s, va_list *args); -u8 *format_ns_flags(u8 *s, va_list *args); +u8 *format_ns_object (u8 *s, va_list *args); +u8 *format_ns_flags (u8 *s, va_list *args); #endif diff --git a/extras/router-plugin/devices/rtnetlink/rtnl.c b/extras/router-plugin/devices/rtnetlink/rtnl.c index ed3db9e72..9c4757b17 100644 --- a/extras/router-plugin/devices/rtnetlink/rtnl.c +++ b/extras/router-plugin/devices/rtnetlink/rtnl.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * 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: @@ -16,20 +16,20 @@ #define _GNU_SOURCE #include <sched.h> -#include <vlib/vlib.h> #include <vlib/unix/unix.h> +#include <vlib/vlib.h> #include <vppinfra/error.h> -#include <sys/socket.h> +#include <fcntl.h> +#include <float.h> #include <linux/netlink.h> #include <linux/rtnetlink.h> -#include <float.h> -#include <fcntl.h> +#include <sys/socket.h> -#include <sys/types.h> -#include <sys/wait.h> #include <errno.h> #include <string.h> +#include <sys/types.h> +#include <sys/wait.h> #include "netns.h" #include "rtnl.h" @@ -37,19 +37,22 @@ #undef DBL_MAX #define DBL_MAX 1000000000.0 -typedef enum { +typedef enum +{ RTNL_E_OPEN, RTNL_E_CLOSE, RTNL_E_READ, } rtnl_event_t; -typedef enum { +typedef enum +{ RTNL_S_INIT, RTNL_S_SYNC, RTNL_S_READY, } rtnl_state_t; -typedef enum { +typedef enum +{ RTNL_SS_OPENING, RTNL_SS_LINK, RTNL_SS_ADDR, @@ -58,7 +61,8 @@ typedef enum { RTNL_SS_NEIGH, } rtnl_sync_state_t; -typedef struct { +typedef struct +{ rtnl_stream_t stream; rtnl_state_t state; rtnl_sync_state_t sync_state; @@ -69,7 +73,8 @@ typedef struct { f64 timeout; } rtnl_ns_t; -typedef struct { +typedef struct +{ f64 now; rtnl_ns_t *streams; } rtnl_main_t; @@ -77,204 +82,227 @@ typedef struct { static rtnl_main_t rtnl_main; static vlib_node_registration_t rtnl_process_node; -#define RTNL_BUFFSIZ 16384 +#define RTNL_BUFFSIZ 16384 #define RTNL_DUMP_TIMEOUT 1 -static inline u32 grpmask(u32 g) +static inline u32 +grpmask (u32 g) { ASSERT (g <= 31); - if (g) { - return 1 << (g - 1); - } else + if (g) + { + return 1 << (g - 1); + } + else return 0; } - -u8 *format_rtnl_nsname2path(u8 *s, va_list *args) +u8 * +format_rtnl_nsname2path (u8 *s, va_list *args) { - char *nsname = va_arg(*args, char *); - if (!nsname || !strlen(nsname)) { - return format(s, "/proc/self/ns/net"); - } else if (strpbrk(nsname, "/") != NULL) { - return format(s, "%s", nsname); - } else { - return format(s, "/var/run/netns/%s", nsname); - } + char *nsname = va_arg (*args, char *); + if (!nsname || !strlen (nsname)) + { + return format (s, "/proc/self/ns/net"); + } + else if (strpbrk (nsname, "/") != NULL) + { + return format (s, "%s", nsname); + } + else + { + return format (s, "/var/run/netns/%s", nsname); + } } static_always_inline void -rtnl_schedule_timeout(rtnl_ns_t *ns, f64 when) +rtnl_schedule_timeout (rtnl_ns_t *ns, f64 when) { ns->timeout = when; } static_always_inline void -rtnl_cancel_timeout(rtnl_ns_t *ns) +rtnl_cancel_timeout (rtnl_ns_t *ns) { ns->timeout = DBL_MAX; } -static clib_error_t *rtnl_read_cb(struct clib_file * f) +static clib_error_t * +rtnl_read_cb (struct clib_file *f) { rtnl_main_t *rm = &rtnl_main; - vlib_main_t *vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); rtnl_ns_t *ns = &rm->streams[f->private_data]; - vlib_process_signal_event(vm, rtnl_process_node.index, RTNL_E_READ, (uword)(ns - rm->streams)); + vlib_process_signal_event (vm, rtnl_process_node.index, RTNL_E_READ, + (uword) (ns - rm->streams)); return 0; } -int rtnl_dump_request(rtnl_ns_t *ns, int type, void *req, size_t len) +int +rtnl_dump_request (rtnl_ns_t *ns, int type, void *req, size_t len) { struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK }; struct nlmsghdr nlh = { - .nlmsg_len = NLMSG_LENGTH(len), + .nlmsg_len = NLMSG_LENGTH (len), .nlmsg_type = type, - .nlmsg_flags = NLM_F_DUMP|NLM_F_REQUEST, + .nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST, .nlmsg_pid = 0, .nlmsg_seq = ++ns->rtnl_seq, }; - struct iovec iov[2] = { - { .iov_base = &nlh, .iov_len = sizeof(nlh) }, - { .iov_base = req, .iov_len = len } - }; + struct iovec iov[2] = { { .iov_base = &nlh, .iov_len = sizeof (nlh) }, + { .iov_base = req, .iov_len = len } }; struct msghdr msg = { .msg_name = &nladdr, - .msg_namelen = sizeof(nladdr), + .msg_namelen = sizeof (nladdr), .msg_iov = iov, .msg_iovlen = 2, }; - if(sendmsg(ns->rtnl_socket, &msg, 0) < 0) { - clib_warning("sendmsg error: %s", strerror(errno)); - return -1; - } + if (sendmsg (ns->rtnl_socket, &msg, 0) < 0) + { + clib_warning ("sendmsg error: %s", strerror (errno)); + return -1; + } return 0; } -static void rtnl_socket_close(rtnl_ns_t *ns) +static void +rtnl_socket_close (rtnl_ns_t *ns) { - clib_file_del(&file_main, &file_main.file_pool[ns->unix_index]); - close(ns->rtnl_socket); + clib_file_del (&file_main, &file_main.file_pool[ns->unix_index]); + close (ns->rtnl_socket); } -struct rtnl_thread_exec { +struct rtnl_thread_exec +{ int fd; - void *(*fn)(void *); + void *(*fn) (void *); void *arg; void **ret; }; -static void *rtnl_exec_in_thread_fn(void *p) +static void * +rtnl_exec_in_thread_fn (void *p) { struct rtnl_thread_exec *ex = (struct rtnl_thread_exec *) p; - if (setns(ex->fd, 0)) + if (setns (ex->fd, 0)) return (void *) ((uword) (-errno)); - *ex->ret = ex->fn(ex->arg); + *ex->ret = ex->fn (ex->arg); return NULL; } -static int rtnl_exec_in_namespace_byfd(int fd, void *(*fn)(void *), void *arg, void **ret) +static int +rtnl_exec_in_namespace_byfd (int fd, void *(*fn) (void *), void *arg, + void **ret) { pthread_t thread; void *thread_ret; - struct rtnl_thread_exec ex = { - .fd = fd, - .fn = fn, - .arg = arg, - .ret = ret - }; - if(pthread_create(&thread, NULL, rtnl_exec_in_thread_fn, &ex)) + struct rtnl_thread_exec ex = { .fd = fd, .fn = fn, .arg = arg, .ret = ret }; + if (pthread_create (&thread, NULL, rtnl_exec_in_thread_fn, &ex)) return -errno; - if(pthread_join(thread, &thread_ret)) + if (pthread_join (thread, &thread_ret)) return -errno; if (thread_ret) - return (int) ((uword)thread_ret); + return (int) ((uword) thread_ret); return 0; } -int rtnl_exec_in_namespace(u32 stream_index, void *(*fn)(void *), void *arg, void **ret) +int +rtnl_exec_in_namespace (u32 stream_index, void *(*fn) (void *), void *arg, + void **ret) { rtnl_main_t *rm = &rtnl_main; - if (pool_is_free_index(rm->streams, stream_index)) + if (pool_is_free_index (rm->streams, stream_index)) return -EBADR; - rtnl_ns_t *ns = pool_elt_at_index(rm->streams, stream_index); - return rtnl_exec_in_namespace_byfd(ns->ns_fd, fn, arg, ret); + rtnl_ns_t *ns = pool_elt_at_index (rm->streams, stream_index); + return rtnl_exec_in_namespace_byfd (ns->ns_fd, fn, arg, ret); } -int rtnl_exec_in_namespace_by_name(char *nsname, void *(*fn)(void *), void *arg, void **ret) +int +rtnl_exec_in_namespace_by_name (char *nsname, void *(*fn) (void *), void *arg, + void **ret) { int fd; - u8 *s = format((u8 *)0, "%U", format_rtnl_nsname2path, nsname); + u8 *s = format ((u8 *) 0, "%U", format_rtnl_nsname2path, nsname); - if ((fd = open((char *)s, O_RDONLY)) < 0) { - vec_free(s); - return -errno; - } + if ((fd = open ((char *) s, O_RDONLY)) < 0) + { + vec_free (s); + return -errno; + } - int r = rtnl_exec_in_namespace_byfd(fd, fn, arg, ret); - vec_free(s); - close(fd); + int r = rtnl_exec_in_namespace_byfd (fd, fn, arg, ret); + vec_free (s); + close (fd); return r; } /* this function is run by the second thread */ -static void *rtnl_thread_fn(void *p) +static void * +rtnl_thread_fn (void *p) { rtnl_ns_t *ns = (rtnl_ns_t *) p; - if (setns(ns->ns_fd, 0)) { - clib_warning("setns(%d, %d) error %d", ns->ns_fd, CLONE_NEWNET, errno); - return (void *) -1; - } + if (setns (ns->ns_fd, 0)) + { + clib_warning ("setns(%d, %d) error %d", ns->ns_fd, CLONE_NEWNET, errno); + return (void *) -1; + } - if ((ns->rtnl_socket = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) == -1) { - clib_warning("Cannot open socket"); - return (void *) -2; - } + if ((ns->rtnl_socket = socket (AF_NETLINK, SOCK_RAW, NETLINK_ROUTE)) == -1) + { + clib_warning ("Cannot open socket"); + return (void *) -2; + } return NULL; } -static int rtnl_socket_open(rtnl_ns_t *ns) +static int +rtnl_socket_open (rtnl_ns_t *ns) { rtnl_main_t *rm = &rtnl_main; pthread_t thread; void *thread_ret; - if(pthread_create(&thread, NULL, rtnl_thread_fn, ns)) { - clib_warning("Can't create opening thread"); - return -1; - } + if (pthread_create (&thread, NULL, rtnl_thread_fn, ns)) + { + clib_warning ("Can't create opening thread"); + return -1; + } - if(pthread_join(thread, &thread_ret)) { - clib_warning("Can't join opening thread"); - return -2; - } + if (pthread_join (thread, &thread_ret)) + { + clib_warning ("Can't join opening thread"); + return -2; + } - if (thread_ret) { - clib_warning("Could not open netlink socket"); - return -3; - } + if (thread_ret) + { + clib_warning ("Could not open netlink socket"); + return -3; + } struct sockaddr_nl addr = { .nl_family = AF_NETLINK, .nl_pad = 0, .nl_pid = 0, /*add mpls message group*/ - .nl_groups = grpmask(RTNLGRP_LINK)| grpmask(RTNLGRP_IPV6_IFADDR) | - grpmask(RTNLGRP_IPV4_IFADDR) | grpmask(RTNLGRP_IPV4_ROUTE) | - grpmask(RTNLGRP_IPV6_ROUTE) | grpmask(RTNLGRP_NEIGH) | - grpmask(RTNLGRP_NOTIFY) /* | grpmask(RTNLGRP_MPLS_ROUTE)*/, + .nl_groups = grpmask (RTNLGRP_LINK) | grpmask (RTNLGRP_IPV6_IFADDR) | + grpmask (RTNLGRP_IPV4_IFADDR) | grpmask (RTNLGRP_IPV4_ROUTE) | + grpmask (RTNLGRP_IPV6_ROUTE) | grpmask (RTNLGRP_NEIGH) | + grpmask (RTNLGRP_NOTIFY) /* | grpmask(RTNLGRP_MPLS_ROUTE)*/, }; - if (bind(ns->rtnl_socket, (struct sockaddr*) &addr, sizeof(addr))) { - close(ns->rtnl_socket); - return -3; - } + if (bind (ns->rtnl_socket, (struct sockaddr *) &addr, sizeof (addr))) + { + close (ns->rtnl_socket); + return -3; + } - clib_file_t template = {0}; + clib_file_t template = { 0 }; template.read_function = rtnl_read_cb; template.file_descriptor = ns->rtnl_socket; template.private_data = (uword) (ns - rm->streams); @@ -283,11 +311,11 @@ static int rtnl_socket_open(rtnl_ns_t *ns) } static int -rtnl_rcv_error(rtnl_ns_t *ns, struct nlmsghdr *hdr, int *error) +rtnl_rcv_error (rtnl_ns_t *ns, struct nlmsghdr *hdr, int *error) { - struct nlmsgerr *err = NLMSG_DATA(hdr); - size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN(sizeof(*hdr)); - if(datalen < sizeof(*err)) + struct nlmsgerr *err = NLMSG_DATA (hdr); + size_t datalen = hdr->nlmsg_len - NLMSG_ALIGN (sizeof (*hdr)); + if (datalen < sizeof (*err)) return -1; *error = err->error; @@ -295,142 +323,152 @@ rtnl_rcv_error(rtnl_ns_t *ns, struct nlmsghdr *hdr, int *error) } static void -rtnl_sync_reset(rtnl_ns_t *ns) +rtnl_sync_reset (rtnl_ns_t *ns) { if (ns->sync_state == RTNL_SS_OPENING) return; - rtnl_socket_close(ns); + rtnl_socket_close (ns); ns->sync_state = RTNL_SS_OPENING; } static void -rtnl_sync_done(rtnl_ns_t *ns) +rtnl_sync_done (rtnl_ns_t *ns) { rtnl_main_t *rm = &rtnl_main; struct ifaddrmsg addrmsg; struct rtmsg rtmsg; struct ndmsg ndmsg; - switch (ns->sync_state) { - case RTNL_SS_OPENING: - //Cannot happen here - break; - case RTNL_SS_LINK: - memset(&addrmsg, 0, sizeof(addrmsg)); - addrmsg.ifa_family = AF_UNSPEC; - if(rtnl_dump_request(ns, RTM_GETADDR, &addrmsg, sizeof(addrmsg))) { - rtnl_sync_reset(ns); - rtnl_schedule_timeout(ns, rm->now + 1); - return; - } - rtnl_schedule_timeout(ns, rm->now + RTNL_DUMP_TIMEOUT); - ns->sync_state = RTNL_SS_ADDR; - break; - case RTNL_SS_ADDR: - case RTNL_SS_ROUTE4: - memset(&rtmsg, 0, sizeof(rtmsg)); - rtmsg.rtm_family = (ns->sync_state == RTNL_SS_ADDR)?AF_INET:AF_INET6; - rtmsg.rtm_table = RT_TABLE_UNSPEC; - if(rtnl_dump_request(ns, RTM_GETROUTE, &rtmsg, sizeof(rtmsg))) { - rtnl_sync_reset(ns); - rtnl_schedule_timeout(ns, rm->now + 1); - return; + switch (ns->sync_state) + { + case RTNL_SS_OPENING: + // Cannot happen here + break; + case RTNL_SS_LINK: + memset (&addrmsg, 0, sizeof (addrmsg)); + addrmsg.ifa_family = AF_UNSPEC; + if (rtnl_dump_request (ns, RTM_GETADDR, &addrmsg, sizeof (addrmsg))) + { + rtnl_sync_reset (ns); + rtnl_schedule_timeout (ns, rm->now + 1); + return; + } + rtnl_schedule_timeout (ns, rm->now + RTNL_DUMP_TIMEOUT); + ns->sync_state = RTNL_SS_ADDR; + break; + case RTNL_SS_ADDR: + case RTNL_SS_ROUTE4: + memset (&rtmsg, 0, sizeof (rtmsg)); + rtmsg.rtm_family = (ns->sync_state == RTNL_SS_ADDR) ? AF_INET : AF_INET6; + rtmsg.rtm_table = RT_TABLE_UNSPEC; + if (rtnl_dump_request (ns, RTM_GETROUTE, &rtmsg, sizeof (rtmsg))) + { + rtnl_sync_reset (ns); + rtnl_schedule_timeout (ns, rm->now + 1); + return; + } + rtnl_schedule_timeout (ns, rm->now + RTNL_DUMP_TIMEOUT); + ns->sync_state = + (ns->sync_state == RTNL_SS_ADDR) ? RTNL_SS_ROUTE4 : RTNL_SS_ROUTE6; + break; + case RTNL_SS_ROUTE6: + memset (&ndmsg, 0, sizeof (ndmsg)); + ndmsg.ndm_family = AF_UNSPEC; + if (rtnl_dump_request (ns, RTM_GETNEIGH, &ndmsg, sizeof (ndmsg))) + { + rtnl_sync_reset (ns); + rtnl_schedule_timeout (ns, rm->now + 1); + return; + } + rtnl_schedule_timeout (ns, rm->now + RTNL_DUMP_TIMEOUT); + ns->sync_state = RTNL_SS_NEIGH; + break; + case RTNL_SS_NEIGH: + ns->state = RTNL_S_READY; + ns->sync_state = 0; + rtnl_cancel_timeout (ns); + break; } - rtnl_schedule_timeout(ns, rm->now + RTNL_DUMP_TIMEOUT); - ns->sync_state = (ns->sync_state == RTNL_SS_ADDR)?RTNL_SS_ROUTE4:RTNL_SS_ROUTE6; - break; - case RTNL_SS_ROUTE6: - memset(&ndmsg, 0, sizeof(ndmsg)); - ndmsg.ndm_family = AF_UNSPEC; - if(rtnl_dump_request(ns, RTM_GETNEIGH, &ndmsg, sizeof(ndmsg))) { - rtnl_sync_reset(ns); - rtnl_schedule_timeout(ns, rm->now + 1); - return; - } - rtnl_schedule_timeout(ns, rm->now + RTNL_DUMP_TIMEOUT); - ns->sync_state = RTNL_SS_NEIGH; - break; - case RTNL_SS_NEIGH: - ns->state = RTNL_S_READY; - ns->sync_state = 0; - rtnl_cancel_timeout(ns); - break; - } } static void -rtnl_sync_timeout(rtnl_ns_t *ns) +rtnl_sync_timeout (rtnl_ns_t *ns) { rtnl_main_t *rm = &rtnl_main; struct ifinfomsg imsg = {}; - switch (ns->sync_state) { - case RTNL_SS_OPENING: - if (rtnl_socket_open(ns)) { - rtnl_schedule_timeout(ns, rm->now + 10); - return; - } - imsg.ifi_family = AF_UNSPEC; - if (rtnl_dump_request(ns, RTM_GETLINK, &imsg, sizeof(imsg))) { - rtnl_sync_reset(ns); - rtnl_schedule_timeout(ns, rm->now + 10); + switch (ns->sync_state) + { + case RTNL_SS_OPENING: + if (rtnl_socket_open (ns)) + { + rtnl_schedule_timeout (ns, rm->now + 10); + return; + } + imsg.ifi_family = AF_UNSPEC; + if (rtnl_dump_request (ns, RTM_GETLINK, &imsg, sizeof (imsg))) + { + rtnl_sync_reset (ns); + rtnl_schedule_timeout (ns, rm->now + 10); + } + ns->sync_state = RTNL_SS_LINK; + rtnl_schedule_timeout (ns, rm->now + 2); + break; + case RTNL_SS_LINK: + case RTNL_SS_ADDR: + case RTNL_SS_ROUTE4: + case RTNL_SS_ROUTE6: + case RTNL_SS_NEIGH: + // Timeout happened while synchronizing + rtnl_sync_reset (ns); + rtnl_schedule_timeout (ns, rm->now + 1); + break; } - ns->sync_state = RTNL_SS_LINK; - rtnl_schedule_timeout(ns, rm->now + 2); - break; - case RTNL_SS_LINK: - case RTNL_SS_ADDR: - case RTNL_SS_ROUTE4: - case RTNL_SS_ROUTE6: - case RTNL_SS_NEIGH: - //Timeout happened while synchronizing - rtnl_sync_reset(ns); - rtnl_schedule_timeout(ns, rm->now + 1); - break; - } } static int -rtnl_ns_recv(rtnl_ns_t *ns, struct nlmsghdr *hdr) +rtnl_ns_recv (rtnl_ns_t *ns, struct nlmsghdr *hdr) { rtnl_main_t *rm = &rtnl_main; int ret, error = 0; - if (ns->state == RTNL_S_SYNC && - ((hdr->nlmsg_flags & RTM_F_NOTIFY) || - (hdr->nlmsg_seq != (ns->rtnl_seq)))) { - clib_warning("Received notification while in sync. Restart synchronization."); - rtnl_sync_reset(ns); - rtnl_schedule_timeout(ns, rm->now); - } - - switch (hdr->nlmsg_type) { - case NLMSG_DONE: - rtnl_sync_done(ns); - break; - case NLMSG_ERROR: - if((ret = rtnl_rcv_error(ns, hdr, &error))) - return ret; - break; - case RTM_NEWROUTE: - case RTM_DELROUTE: - case RTM_NEWLINK: - case RTM_DELLINK: - case RTM_NEWADDR: - case RTM_DELADDR: - case RTM_NEWNEIGH: - case RTM_DELNEIGH: - if (ns->stream.recv_message) - ns->stream.recv_message(hdr, ns->stream.opaque); - break; - default: - clib_warning("Unknown rtnetlink type %d", hdr->nlmsg_type); - break; - } + if (ns->state == RTNL_S_SYNC && ((hdr->nlmsg_flags & RTM_F_NOTIFY) || + (hdr->nlmsg_seq != (ns->rtnl_seq)))) + { + clib_warning ( + "Received notification while in sync. Restart synchronization."); + rtnl_sync_reset (ns); + rtnl_schedule_timeout (ns, rm->now); + } + + switch (hdr->nlmsg_type) + { + case NLMSG_DONE: + rtnl_sync_done (ns); + break; + case NLMSG_ERROR: + if ((ret = rtnl_rcv_error (ns, hdr, &error))) + return ret; + break; + case RTM_NEWROUTE: + case RTM_DELROUTE: + case RTM_NEWLINK: + case RTM_DELLINK: + case RTM_NEWADDR: + case RTM_DELADDR: + case RTM_NEWNEIGH: + case RTM_DELNEIGH: + if (ns->stream.recv_message) + ns->stream.recv_message (hdr, ns->stream.opaque); + break; + default: + clib_warning ("Unknown rtnetlink type %d", hdr->nlmsg_type); + break; + } return 0; } static void -rtnl_process_open(rtnl_ns_t *ns) +rtnl_process_open (rtnl_ns_t *ns) { rtnl_main_t *rm = &rtnl_main; if (ns->state != RTNL_S_INIT) @@ -438,163 +476,182 @@ rtnl_process_open(rtnl_ns_t *ns) ns->state = RTNL_S_SYNC; ns->sync_state = RTNL_SS_OPENING; - rtnl_schedule_timeout(ns, rm->now); + rtnl_schedule_timeout (ns, rm->now); } static void -rtnl_process_close(rtnl_ns_t *ns) +rtnl_process_close (rtnl_ns_t *ns) { rtnl_main_t *rm = &rtnl_main; if (ns->state == RTNL_S_INIT) return; - rtnl_socket_close(ns); - close(ns->ns_fd); - pool_put(rm->streams, ns); + rtnl_socket_close (ns); + close (ns->ns_fd); + pool_put (rm->streams, ns); } static int -rtnl_process_read(rtnl_ns_t *ns) +rtnl_process_read (rtnl_ns_t *ns) { uint8_t buff[RTNL_BUFFSIZ]; ssize_t len; struct nlmsghdr *hdr; - while(1) { - if((len = recv(ns->rtnl_socket, buff, RTNL_BUFFSIZ, MSG_DONTWAIT)) < 0) { - if(errno != EAGAIN) { - clib_warning("rtnetlink recv error (%d) [%s]: %s", ns->rtnl_socket, ns->stream.name, strerror(errno)); - return -1; - } - return 0; - } - - for(hdr = (struct nlmsghdr *) buff; - len > 0; - len -= NLMSG_ALIGN(hdr->nlmsg_len), - hdr = (struct nlmsghdr *) (((uint8_t *) hdr) + NLMSG_ALIGN(hdr->nlmsg_len))) { - if((sizeof(*hdr) > (size_t)len) || (hdr->nlmsg_len > (size_t)len)) { - clib_warning("rtnetlink buffer too small (%d Vs %d)", (int) hdr->nlmsg_len, (int) len); - return -1; - } - if (rtnl_ns_recv(ns, hdr)) - return -1; + while (1) + { + if ((len = recv (ns->rtnl_socket, buff, RTNL_BUFFSIZ, MSG_DONTWAIT)) < 0) + { + if (errno != EAGAIN) + { + clib_warning ("rtnetlink recv error (%d) [%s]: %s", + ns->rtnl_socket, ns->stream.name, + strerror (errno)); + return -1; + } + return 0; + } + + for (hdr = (struct nlmsghdr *) buff; len > 0; + len -= NLMSG_ALIGN (hdr->nlmsg_len), + hdr = (struct nlmsghdr *) (((uint8_t *) hdr) + + NLMSG_ALIGN (hdr->nlmsg_len))) + { + if ((sizeof (*hdr) > (size_t) len) || + (hdr->nlmsg_len > (size_t) len)) + { + clib_warning ("rtnetlink buffer too small (%d Vs %d)", + (int) hdr->nlmsg_len, (int) len); + return -1; + } + if (rtnl_ns_recv (ns, hdr)) + return -1; + } } - } return 0; } static void -rtnl_process_timeout(rtnl_ns_t *ns) -{ - switch (ns->state) { - case RTNL_S_SYNC: - rtnl_sync_timeout(ns); - break; - case RTNL_S_INIT: - case RTNL_S_READY: - clib_warning("Should not happen"); - break; - } +rtnl_process_timeout (rtnl_ns_t *ns) +{ + switch (ns->state) + { + case RTNL_S_SYNC: + rtnl_sync_timeout (ns); + break; + case RTNL_S_INIT: + case RTNL_S_READY: + clib_warning ("Should not happen"); + break; + } } static uword -rtnl_process (vlib_main_t * vm, - vlib_node_runtime_t * node, - vlib_frame_t * frame) +rtnl_process (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame) { rtnl_main_t *rm = &rtnl_main; uword event_type; uword *event_data = 0; - rm->now = vlib_time_now(vm); + rm->now = vlib_time_now (vm); f64 timeout = DBL_MAX; rtnl_ns_t *ns; - //Setting up - while (1) { - vlib_process_wait_for_event_or_clock(vm, timeout - rm->now); - event_type = vlib_process_get_events(vm, &event_data); - rm->now = vlib_time_now(vm); - - if (event_type == ~0) { //Clock event or no event - pool_foreach(ns, rm->streams, { - if (ns->timeout < rm->now) { - ns->timeout = DBL_MAX; - rtnl_process_timeout(ns); - } - }); - } else { - rtnl_ns_t *ns; - uword *d; - vec_foreach(d, event_data) { - ns = &rm->streams[d[0]]; - switch (event_type) - { - case RTNL_E_CLOSE: - rtnl_process_close(ns); - break; - case RTNL_E_OPEN: - rtnl_process_open(ns); - break; - case RTNL_E_READ: - rtnl_process_read(ns); - break; - } - } + // Setting up + while (1) + { + vlib_process_wait_for_event_or_clock (vm, timeout - rm->now); + event_type = vlib_process_get_events (vm, &event_data); + rm->now = vlib_time_now (vm); + + if (event_type == ~0) + { // Clock event or no event + pool_foreach (ns, rm->streams, { + if (ns->timeout < rm->now) + { + ns->timeout = DBL_MAX; + rtnl_process_timeout (ns); + } + }) + ; + } + else + { + rtnl_ns_t *ns; + uword *d; + vec_foreach (d, event_data) + { + ns = &rm->streams[d[0]]; + switch (event_type) + { + case RTNL_E_CLOSE: + rtnl_process_close (ns); + break; + case RTNL_E_OPEN: + rtnl_process_open (ns); + break; + case RTNL_E_READ: + rtnl_process_read (ns); + break; + } + } + } + + vec_reset_length (event_data); + + timeout = DBL_MAX; + pool_foreach (ns, rm->streams, { + if (ns->timeout < timeout) + timeout = ns->timeout; + }) + ; } - - vec_reset_length (event_data); - - timeout = DBL_MAX; - pool_foreach(ns, rm->streams, { - if (ns->timeout < timeout) - timeout = ns->timeout; - }); - } return frame->n_vectors; } -VLIB_REGISTER_NODE(rtnl_process_node, static) = { +VLIB_REGISTER_NODE (rtnl_process_node, static) = { .function = rtnl_process, .name = "rtnl-process", .type = VLIB_NODE_TYPE_PROCESS, }; u32 -rtnl_stream_open(rtnl_stream_t *template) +rtnl_stream_open (rtnl_stream_t *template) { - vlib_main_t *vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); rtnl_main_t *rm = &rtnl_main; rtnl_ns_t *ns; int fd; - u8 *s = format((u8 *)0, "%U", format_rtnl_nsname2path, template->name); - vec_add1(s, 0); - - if ((fd = open((char *)s, O_RDONLY)) < 0) { - clib_unix_warning("open stream %s: ", s); - vec_free(s); - return ~0; - } + u8 *s = format ((u8 *) 0, "%U", format_rtnl_nsname2path, template->name); + vec_add1 (s, 0); + + if ((fd = open ((char *) s, O_RDONLY)) < 0) + { + clib_unix_warning ("open stream %s: ", s); + vec_free (s); + return ~0; + } - vec_free(s); - pool_get(rm->streams, ns); + vec_free (s); + pool_get (rm->streams, ns); ns->state = RTNL_S_INIT; ns->ns_fd = fd; ns->stream = *template; - vlib_process_signal_event(vm, rtnl_process_node.index, RTNL_E_OPEN, (uword)(ns - rm->streams)); + vlib_process_signal_event (vm, rtnl_process_node.index, RTNL_E_OPEN, + (uword) (ns - rm->streams)); return ns - rm->streams; } void -rtnl_stream_close(u32 stream_index) +rtnl_stream_close (u32 stream_index) { - vlib_main_t *vm = vlib_get_main(); + vlib_main_t *vm = vlib_get_main (); rtnl_main_t *rm = &rtnl_main; - ASSERT(!pool_is_free_index(rm->streams, stream_index)); - vlib_process_signal_event(vm, rtnl_process_node.index, RTNL_E_CLOSE, stream_index); + ASSERT (!pool_is_free_index (rm->streams, stream_index)); + vlib_process_signal_event (vm, rtnl_process_node.index, RTNL_E_CLOSE, + stream_index); } clib_error_t * -rtnl_init (vlib_main_t * vm) +rtnl_init (vlib_main_t *vm) { rtnl_main_t *rm = &rtnl_main; rm->streams = 0; diff --git a/extras/router-plugin/devices/rtnetlink/rtnl.h b/extras/router-plugin/devices/rtnetlink/rtnl.h index 3f96252c1..4c22b912a 100644 --- a/extras/router-plugin/devices/rtnetlink/rtnl.h +++ b/extras/router-plugin/devices/rtnetlink/rtnl.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * 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: @@ -21,7 +21,8 @@ #include <linux/netlink.h> #include <vppinfra/clib.h> -typedef enum { +typedef enum +{ RTNL_ERR_UNKNOWN, } rtnl_error_t; @@ -37,24 +38,27 @@ typedef enum { * new dump requests are sent. */ -typedef struct rtnl_stream_s { +typedef struct rtnl_stream_s +{ char name[RTNL_NETNS_NAMELEN + 1]; - void (*recv_message)(struct nlmsghdr *hdr, uword opaque); - void (*error)(rtnl_error_t err, uword opaque); + void (*recv_message) (struct nlmsghdr *hdr, uword opaque); + void (*error) (rtnl_error_t err, uword opaque); uword opaque; } rtnl_stream_t; -u32 rtnl_stream_open(rtnl_stream_t *template); -void rtnl_stream_close(u32 handle); +u32 rtnl_stream_open (rtnl_stream_t *template); +void rtnl_stream_close (u32 handle); /* * Executes a function in a synchronously executed thread in the * given namespace. * Returns 0 on success, and -errno on error. */ -int rtnl_exec_in_namespace(u32 handle, void *(*fn)(void *), void *arg, void **ret); -int rtnl_exec_in_namespace_by_name(char *nsname, void *(*fn)(void *), void *arg, void **ret); +int rtnl_exec_in_namespace (u32 handle, void *(*fn) (void *), void *arg, + void **ret); +int rtnl_exec_in_namespace_by_name (char *nsname, void *(*fn) (void *), + void *arg, void **ret); -u8 *format_rtnl_nsname2path(u8 *s, va_list *args); +u8 *format_rtnl_nsname2path (u8 *s, va_list *args); #endif diff --git a/extras/router-plugin/devices/rtnetlink/test.c b/extras/router-plugin/devices/rtnetlink/test.c index 031748dd3..c969f6108 100644 --- a/extras/router-plugin/devices/rtnetlink/test.c +++ b/extras/router-plugin/devices/rtnetlink/test.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016-2019 Cisco and/or its affiliates. + * 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: @@ -15,183 +15,191 @@ #include <librtnl/netns.h> -#include <vnet/plugin/plugin.h> #include <librtnl/mapper.h> -#include <vnet/ip/ip.h> #include <vnet/fib/fib.h> #include <vnet/fib/ip4_fib.h> #include <vnet/fib/ip6_fib.h> +#include <vnet/ip/ip.h> +#include <vnet/plugin/plugin.h> u32 handles[10]; static void -test_notify(void *obj, netns_type_t type, u32 flags, uword opaque) { +test_notify (void *obj, netns_type_t type, u32 flags, uword opaque) +{ u32 index = (u32) opaque; - const char *action = (flags & NETNS_F_ADD)?"add":(flags & NETNS_F_DEL)?"del":"mod"; + const char *action = (flags & NETNS_F_ADD) ? "add" : + (flags & NETNS_F_DEL) ? "del" : + "mod"; - switch (type) { + switch (type) + { case NETNS_TYPE_ADDR: - clib_warning("%d: addr %s %U", index, action, format_ns_addr, (ns_addr_t *)obj); + clib_warning ("%d: addr %s %U", index, action, format_ns_addr, + (ns_addr_t *) obj); break; case NETNS_TYPE_ROUTE: - clib_warning("%d: route %s %U", index, action, format_ns_route, (ns_route_t *)obj); + clib_warning ("%d: route %s %U", index, action, format_ns_route, + (ns_route_t *) obj); break; case NETNS_TYPE_LINK: - clib_warning("%d:link %s %U", index, action, format_ns_link, (ns_link_t *)obj); + clib_warning ("%d:link %s %U", index, action, format_ns_link, + (ns_link_t *) obj); break; case NETNS_TYPE_NEIGH: - clib_warning("%d: neigh %s %U", index, action, format_ns_neigh, (ns_neigh_t *)obj); + clib_warning ("%d: neigh %s %U", index, action, format_ns_neigh, + (ns_neigh_t *) obj); break; - } + } } static clib_error_t * -test_enable_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) +test_enable_command_fn (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) { char *nsname = 0; u32 index; - if (!unformat(input, "%s", &nsname)) { - return clib_error_return(0, "unknown input `%U'", - format_unformat_error, input); - } - if (!unformat(input, "%d", &index)) { - return clib_error_return(0, "unknown input `%U'", - format_unformat_error, input); - } - - if (!strcmp(nsname, "default")) + if (!unformat (input, "%s", &nsname)) + { + return clib_error_return (0, "unknown input `%U'", format_unformat_error, + input); + } + if (!unformat (input, "%d", &index)) + { + return clib_error_return (0, "unknown input `%U'", format_unformat_error, + input); + } + + if (!strcmp (nsname, "default")) nsname[0] = 0; netns_sub_t sub; sub.notify = test_notify; sub.opaque = index; - handles[index] = netns_open(nsname, &sub); - if (handles[index] == ~0) { - return clib_error_create("Could not open netns with name %s", nsname); - } + handles[index] = netns_open (nsname, &sub); + if (handles[index] == ~0) + { + return clib_error_create ("Could not open netns with name %s", nsname); + } return 0; } static clib_error_t * -test_disable_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) +test_disable_command_fn (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) { u32 index; - if (!unformat(input, "%d", &index)) { - return clib_error_return(0, "unknown input `%U'", - format_unformat_error, input); - } + if (!unformat (input, "%d", &index)) + { + return clib_error_return (0, "unknown input `%U'", format_unformat_error, + input); + } - netns_close(handles[index]); + netns_close (handles[index]); return 0; } VLIB_CLI_COMMAND (rtnl_enable_command, static) = { - .path = "test netns enable", - .short_help = "test netns enable [<ns-name>|default] <index>", - .function = test_enable_command_fn, + .path = "test netns enable", + .short_help = "test netns enable [<ns-name>|default] <index>", + .function = test_enable_command_fn, }; VLIB_CLI_COMMAND (rtnl_disable_command, static) = { - .path = "test netns disable", - .short_help = "test rtnl disable <index>", - .function = test_disable_command_fn, + .path = "test netns disable", + .short_help = "test rtnl disable <index>", + .function = test_disable_command_fn, }; u32 mapper_indexes[10]; static clib_error_t * -mapper_ns_add_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) +mapper_ns_add_command_fn (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) { u32 index; char *nsname; u32 table_id; - if (!unformat(input, "%d", &index)) - return clib_error_return(0, "invalid index `%U'", - format_unformat_error, input); - if (!unformat(input, "%s", &nsname)) - return clib_error_return(0, "invalid nsname `%U'", - format_unformat_error, input); - if (!unformat(input, "%d", &table_id)) - return clib_error_return(0, "invalid fib index `%U'", - format_unformat_error, input); - - if (!strcmp(nsname, "default")) + if (!unformat (input, "%d", &index)) + return clib_error_return (0, "invalid index `%U'", format_unformat_error, + input); + if (!unformat (input, "%s", &nsname)) + return clib_error_return (0, "invalid nsname `%U'", format_unformat_error, + input); + if (!unformat (input, "%d", &table_id)) + return clib_error_return (0, "invalid fib index `%U'", + format_unformat_error, input); + + if (!strcmp (nsname, "default")) nsname[0] = 0; - u32 fib4 = ip4_fib_index_from_table_id(table_id); - u32 fib6 = ip6_fib_index_from_table_id(table_id); + u32 fib4 = ip4_fib_index_from_table_id (table_id); + u32 fib6 = ip6_fib_index_from_table_id (table_id); - if (mapper_add_ns(nsname, fib4, fib6, &mapper_indexes[index])) - return clib_error_return(0, "Could not add ns %s", nsname); + if (mapper_add_ns (nsname, fib4, fib6, &mapper_indexes[index])) + return clib_error_return (0, "Could not add ns %s", nsname); return 0; } VLIB_CLI_COMMAND (mapper_ns_add_command, static) = { - .path = "test mapper ns add", - .short_help = "test mapper ns add <index> <nsname> <table-id>", - .function = mapper_ns_add_command_fn, + .path = "test mapper ns add", + .short_help = "test mapper ns add <index> <nsname> <table-id>", + .function = mapper_ns_add_command_fn, }; static clib_error_t * -mapper_ns_del_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) +mapper_ns_del_command_fn (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) { u32 index; - if (!unformat(input, "%d", &index)) - return clib_error_return(0, "invalid index `%U'", - format_unformat_error, input); + if (!unformat (input, "%d", &index)) + return clib_error_return (0, "invalid index `%U'", format_unformat_error, + input); - if (mapper_del_ns(mapper_indexes[index])) - return clib_error_return(0, "Could not del ns %d", index); + if (mapper_del_ns (mapper_indexes[index])) + return clib_error_return (0, "Could not del ns %d", index); return 0; } VLIB_CLI_COMMAND (mapper_ns_del_command, static) = { - .path = "test mapper ns delete", - .short_help = "test mapper ns delete <index>", - .function = mapper_ns_del_command_fn, + .path = "test mapper ns delete", + .short_help = "test mapper ns delete <index>", + .function = mapper_ns_del_command_fn, }; static clib_error_t * -mapper_iface_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) +mapper_iface_command_fn (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) { u32 nsindex; u32 ifindex; u32 sw_if_index; int del = 0; - if (!unformat(input, "%d", &nsindex)) - return clib_error_return(0, "invalid nsindex `%U'", - format_unformat_error, input); - if (!unformat(input, "%d", &ifindex)) - return clib_error_return(0, "invalid ifindex `%U'", - format_unformat_error, input); - if (!unformat(input, "%d", &sw_if_index)) - return clib_error_return(0, "invalid sw_if_index `%U'", - format_unformat_error, input); - if (unformat(input, "del")) + if (!unformat (input, "%d", &nsindex)) + return clib_error_return (0, "invalid nsindex `%U'", format_unformat_error, + input); + if (!unformat (input, "%d", &ifindex)) + return clib_error_return (0, "invalid ifindex `%U'", format_unformat_error, + input); + if (!unformat (input, "%d", &sw_if_index)) + return clib_error_return (0, "invalid sw_if_index `%U'", + format_unformat_error, input); + if (unformat (input, "del")) del = 1; - clib_warning("mapper_add_del %d %d %d %d", mapper_indexes[nsindex], ifindex, sw_if_index, del); + clib_warning ("mapper_add_del %d %d %d %d", mapper_indexes[nsindex], ifindex, + sw_if_index, del); - if (mapper_add_del(mapper_indexes[nsindex], ifindex, sw_if_index, del)) - return clib_error_return(0, "Could not add iface"); + if (mapper_add_del (mapper_indexes[nsindex], ifindex, sw_if_index, del)) + return clib_error_return (0, "Could not add iface"); return 0; } - VLIB_CLI_COMMAND (mapper_iface_command, static) = { - .path = "test mapper iface", - .short_help = "test mapper iface <nsindex> <linux-ifindex> <sw_if_index> [del]", - .function = mapper_iface_command_fn, + .path = "test mapper iface", + .short_help = + "test mapper iface <nsindex> <linux-ifindex> <sw_if_index> [del]", + .function = mapper_iface_command_fn, }; /* *INDENT-OFF* */ @@ -200,4 +208,3 @@ VLIB_PLUGIN_REGISTER () = { .description = "netlink", }; /* *INDENT-ON* */ - |