diff options
| -rw-r--r-- | tools/testing/selftests/net/forwarding/ipmr.c | 189 |
1 files changed, 122 insertions, 67 deletions
diff --git a/tools/testing/selftests/net/forwarding/ipmr.c b/tools/testing/selftests/net/forwarding/ipmr.c index df870aad9ead..9cd9f70de132 100644 --- a/tools/testing/selftests/net/forwarding/ipmr.c +++ b/tools/testing/selftests/net/forwarding/ipmr.c @@ -2,7 +2,9 @@ /* Copyright 2026 Google LLC */ #include <linux/if.h> +#include <linux/in6.h> #include <linux/mroute.h> +#include <linux/mroute6.h> #include <linux/netlink.h> #include <linux/rtnetlink.h> #include <linux/socket.h> @@ -17,6 +19,14 @@ FIXTURE(ipmr) int netlink_sk; int raw_sk; int veth_ifindex; + union { + struct vifctl vif; + struct mif6ctl vif6; + }; + union { + struct mfcctl mfc; + struct mf6cctl mfc6; + }; }; FIXTURE_VARIANT(ipmr) @@ -24,7 +34,14 @@ FIXTURE_VARIANT(ipmr) int family; int protocol; int level; + int rtm_family; int opts[MRT_MAX - MRT_BASE + 1]; + int flush_flags; + int vif_size; + char vif_check_cmd_pimreg[64]; + char vif_check_cmd_veth[64]; + int mfc_size; + char mfc_check_cmd[1024]; }; FIXTURE_VARIANT_ADD(ipmr, ipv4) @@ -32,6 +49,7 @@ FIXTURE_VARIANT_ADD(ipmr, ipv4) .family = AF_INET, .protocol = IPPROTO_IGMP, .level = IPPROTO_IP, + .rtm_family = RTNL_FAMILY_IPMR, .opts = { MRT_INIT, MRT_DONE, @@ -47,6 +65,44 @@ FIXTURE_VARIANT_ADD(ipmr, ipv4) MRT_DEL_MFC_PROXY, MRT_FLUSH, }, + .flush_flags = MRT_FLUSH_MFC | MRT_FLUSH_MFC_STATIC | + MRT_FLUSH_VIFS | MRT_FLUSH_VIFS_STATIC, + .vif_size = sizeof(struct vifctl), + .vif_check_cmd_pimreg = "cat /proc/net/ip_mr_vif | grep -q pimreg", + .vif_check_cmd_veth = "cat /proc/net/ip_mr_vif | grep -q veth", + .mfc_size = sizeof(struct mfcctl), + .mfc_check_cmd = "cat /proc/net/ip_mr_cache | grep -q '00000000 00000000'", +}; + +FIXTURE_VARIANT_ADD(ipmr, ipv6) +{ + .family = AF_INET6, + .protocol = IPPROTO_ICMPV6, + .level = IPPROTO_IPV6, + .rtm_family = RTNL_FAMILY_IP6MR, + .opts = { + MRT6_INIT, + MRT6_DONE, + MRT6_ADD_MIF, + MRT6_DEL_MIF, + MRT6_ADD_MFC, + MRT6_DEL_MFC, + MRT6_VERSION, + MRT6_ASSERT, + MRT6_PIM, + MRT6_TABLE, + MRT6_ADD_MFC_PROXY, + MRT6_DEL_MFC_PROXY, + MRT6_FLUSH, + }, + .flush_flags = MRT6_FLUSH_MFC | MRT6_FLUSH_MFC_STATIC | + MRT6_FLUSH_MIFS | MRT6_FLUSH_MIFS_STATIC, + .vif_size = sizeof(struct mif6ctl), + .vif_check_cmd_pimreg = "cat /proc/net/ip6_mr_vif | grep -q pim6reg", + .vif_check_cmd_veth = "cat /proc/net/ip6_mr_vif | grep -q veth", + .mfc_size = sizeof(struct mf6cctl), + .mfc_check_cmd = "cat /proc/net/ip6_mr_cache | " + "grep -q '0000:0000:0000:0000:0000:0000:0000:0000 0000:0000:0000:0000:0000:0000:0000:0000'", }; struct mfc_attr { @@ -71,7 +127,9 @@ static struct rtattr *nl_add_rtattr(struct nlmsghdr *nlmsg, struct rtattr *rta, return RTA_NEXT(rta, unused); } -static int nl_sendmsg_mfc(struct __test_metadata *_metadata, FIXTURE_DATA(ipmr) *self, +static int nl_sendmsg_mfc(struct __test_metadata *_metadata, + FIXTURE_DATA(ipmr) *self, + const FIXTURE_VARIANT(ipmr) *variant, __u16 nlmsg_type, struct mfc_attr *mfc_attr) { struct { @@ -87,7 +145,7 @@ static int nl_sendmsg_mfc(struct __test_metadata *_metadata, FIXTURE_DATA(ipmr) }, .rtm = { /* hard requirements in rtm_to_ipmr_mfcc() */ - .rtm_family = RTNL_FAMILY_IPMR, + .rtm_family = variant->rtm_family, .rtm_dst_len = 32, .rtm_type = RTN_MULTICAST, .rtm_scope = RT_SCOPE_UNIVERSE, @@ -144,6 +202,18 @@ FIXTURE_SETUP(ipmr) ASSERT_EQ(0, err); self->veth_ifindex = ifr.ifr_ifindex; + + if (variant->family == AF_INET) { + self->vif = (struct vifctl){ + .vifc_flags = VIFF_USE_IFINDEX, + .vifc_lcl_ifindex = self->veth_ifindex, + }; + } else { + self->vif6 = (struct mif6ctl){ + .mif6c_flags = 0, + .mif6c_pifi = self->veth_ifindex, + }; + } } FIXTURE_TEARDOWN(ipmr) @@ -169,41 +239,39 @@ TEST_F(ipmr, mrt_init) TEST_F(ipmr, mrt_add_vif_register) { - struct vifctl vif = { - .vifc_vifi = 0, - .vifc_flags = VIFF_REGISTER, - }; int err; + memset(&self->vif, 0, variant->vif_size); + + if (variant->family == AF_INET) + self->vif.vifc_flags = VIFF_REGISTER; + else + self->vif6.mif6c_flags = MIFF_REGISTER; + err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_ADD_VIF - MRT_BASE], - &vif, sizeof(vif)); + &self->vif, variant->vif_size); ASSERT_EQ(0, err); - err = system("cat /proc/net/ip_mr_vif | grep -q pimreg"); + err = system(variant->vif_check_cmd_pimreg); ASSERT_EQ(0, err); err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_DEL_VIF - MRT_BASE], - &vif, sizeof(vif)); + &self->vif, variant->vif_size); ASSERT_EQ(0, err); } TEST_F(ipmr, mrt_del_vif_unreg) { - struct vifctl vif = { - .vifc_vifi = 0, - .vifc_flags = VIFF_USE_IFINDEX, - .vifc_lcl_ifindex = self->veth_ifindex, - }; int err; err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_ADD_VIF - MRT_BASE], - &vif, sizeof(vif)); + &self->vif, variant->vif_size); ASSERT_EQ(0, err); - err = system("cat /proc/net/ip_mr_vif | grep -q veth0"); + err = system(variant->vif_check_cmd_veth); ASSERT_EQ(0, err); /* VIF is removed along with its device. */ @@ -213,23 +281,18 @@ TEST_F(ipmr, mrt_del_vif_unreg) /* mrt->vif_table[veth_ifindex]->dev is NULL. */ err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_DEL_VIF - MRT_BASE], - &vif, sizeof(vif)); + &self->vif, variant->vif_size); ASSERT_EQ(-1, err); ASSERT_EQ(EADDRNOTAVAIL, errno); } TEST_F(ipmr, mrt_del_vif_netns_dismantle) { - struct vifctl vif = { - .vifc_vifi = 0, - .vifc_flags = VIFF_USE_IFINDEX, - .vifc_lcl_ifindex = self->veth_ifindex, - }; int err; err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_ADD_VIF - MRT_BASE], - &vif, sizeof(vif)); + &self->vif, variant->vif_size); ASSERT_EQ(0, err); /* Let cleanup_net() remove veth0 and VIF. */ @@ -237,49 +300,42 @@ TEST_F(ipmr, mrt_del_vif_netns_dismantle) TEST_F(ipmr, mrt_add_mfc) { - struct mfcctl mfc = {}; int err; /* MRT_ADD_MFC / MRT_ADD_MFC_PROXY does not need vif to exist (unlike netlink). */ err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_ADD_MFC - MRT_BASE], - &mfc, sizeof(mfc)); + &self->mfc, variant->mfc_size); ASSERT_EQ(0, err); /* (0.0.0.0 -> 0.0.0.0) */ - err = system("cat /proc/net/ip_mr_cache | grep -q '00000000 00000000' "); + err = system(variant->mfc_check_cmd); ASSERT_EQ(0, err); err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_DEL_MFC - MRT_BASE], - &mfc, sizeof(mfc)); + &self->mfc, variant->mfc_size); } TEST_F(ipmr, mrt_add_mfc_proxy) { - struct mfcctl mfc = {}; int err; err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_ADD_MFC_PROXY - MRT_BASE], - &mfc, sizeof(mfc)); + &self->mfc, variant->mfc_size); ASSERT_EQ(0, err); - err = system("cat /proc/net/ip_mr_cache | grep -q '00000000 00000000' "); + err = system(variant->mfc_check_cmd); ASSERT_EQ(0, err); err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_DEL_MFC_PROXY - MRT_BASE], - &mfc, sizeof(mfc)); + &self->mfc, variant->mfc_size); } TEST_F(ipmr, mrt_add_mfc_netlink) { - struct vifctl vif = { - .vifc_vifi = 0, - .vifc_flags = VIFF_USE_IFINDEX, - .vifc_lcl_ifindex = self->veth_ifindex, - }; struct mfc_attr mfc_attr = { .table = RT_TABLE_DEFAULT, .origin = 0, @@ -291,26 +347,21 @@ TEST_F(ipmr, mrt_add_mfc_netlink) err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_ADD_VIF - MRT_BASE], - &vif, sizeof(vif)); + &self->vif, variant->vif_size); ASSERT_EQ(0, err); - err = nl_sendmsg_mfc(_metadata, self, RTM_NEWROUTE, &mfc_attr); + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_NEWROUTE, &mfc_attr); ASSERT_EQ(0, err); - err = system("cat /proc/net/ip_mr_cache | grep -q '00000000 00000000' "); + err = system(variant->mfc_check_cmd); ASSERT_EQ(0, err); - err = nl_sendmsg_mfc(_metadata, self, RTM_DELROUTE, &mfc_attr); + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_DELROUTE, &mfc_attr); ASSERT_EQ(0, err); } TEST_F(ipmr, mrt_add_mfc_netlink_proxy) { - struct vifctl vif = { - .vifc_vifi = 0, - .vifc_flags = VIFF_USE_IFINDEX, - .vifc_lcl_ifindex = self->veth_ifindex, - }; struct mfc_attr mfc_attr = { .table = RT_TABLE_DEFAULT, .origin = 0, @@ -322,16 +373,16 @@ TEST_F(ipmr, mrt_add_mfc_netlink_proxy) err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_ADD_VIF - MRT_BASE], - &vif, sizeof(vif)); + &self->vif, variant->vif_size); ASSERT_EQ(0, err); - err = nl_sendmsg_mfc(_metadata, self, RTM_NEWROUTE, &mfc_attr); + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_NEWROUTE, &mfc_attr); ASSERT_EQ(0, err); - err = system("cat /proc/net/ip_mr_cache | grep -q '00000000 00000000' "); + err = system(variant->mfc_check_cmd); ASSERT_EQ(0, err); - err = nl_sendmsg_mfc(_metadata, self, RTM_DELROUTE, &mfc_attr); + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_DELROUTE, &mfc_attr); ASSERT_EQ(0, err); } @@ -347,12 +398,12 @@ TEST_F(ipmr, mrt_add_mfc_netlink_no_vif) /* netlink always requires RTA_IIF of an existing vif. */ mfc_attr.ifindex = 0; - err = nl_sendmsg_mfc(_metadata, self, RTM_NEWROUTE, &mfc_attr); + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_NEWROUTE, &mfc_attr); ASSERT_EQ(-ENFILE, err); /* netlink always requires RTA_IIF of an existing vif. */ mfc_attr.ifindex = self->veth_ifindex; - err = nl_sendmsg_mfc(_metadata, self, RTM_NEWROUTE, &mfc_attr); + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_NEWROUTE, &mfc_attr); ASSERT_EQ(-ENFILE, err); } @@ -387,10 +438,10 @@ TEST_F(ipmr, mrt_del_mfc_netlink_netns_dismantle) } /* Create a MFC for mrt->vif_table[0]. */ - err = nl_sendmsg_mfc(_metadata, self, RTM_NEWROUTE, &mfc_attr); + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_NEWROUTE, &mfc_attr); ASSERT_EQ(0, err); - err = system("cat /proc/net/ip_mr_cache | grep -q '00000000 00000000' "); + err = system(variant->mfc_check_cmd); ASSERT_EQ(0, err); /* Remove mrt->vif_table[0]. */ @@ -398,13 +449,13 @@ TEST_F(ipmr, mrt_del_mfc_netlink_netns_dismantle) ASSERT_EQ(0, err); /* MFC entry is NOT removed even if the tied VIF is removed... */ - err = system("cat /proc/net/ip_mr_cache | grep -q '00000000 00000000' "); + err = system(variant->mfc_check_cmd); ASSERT_EQ(0, err); /* ... and netlink is not capable of removing such an entry * because netlink always requires a valid RTA_IIF ... :/ */ - err = nl_sendmsg_mfc(_metadata, self, RTM_DELROUTE, &mfc_attr); + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_DELROUTE, &mfc_attr); ASSERT_EQ(-ENODEV, err); /* It can be removed by setsockopt(), but let cleanup_net() remove this time. */ @@ -412,11 +463,6 @@ TEST_F(ipmr, mrt_del_mfc_netlink_netns_dismantle) TEST_F(ipmr, mrt_table_flush) { - struct vifctl vif = { - .vifc_vifi = 0, - .vifc_flags = VIFF_USE_IFINDEX, - .vifc_lcl_ifindex = self->veth_ifindex, - }; struct mfc_attr mfc_attr = { .origin = 0, .group = 0, @@ -424,7 +470,7 @@ TEST_F(ipmr, mrt_table_flush) .proxy = false, }; int table_id = 92; - int err, flags; + int err; /* Set a random table id rather than RT_TABLE_DEFAULT. * Note that /proc/net/ip_mr_{vif,cache} only supports RT_TABLE_DEFAULT. @@ -436,20 +482,29 @@ TEST_F(ipmr, mrt_table_flush) err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_ADD_VIF - MRT_BASE], - &vif, sizeof(vif)); + &self->vif, variant->vif_size); ASSERT_EQ(0, err); - mfc_attr.table = table_id; - err = nl_sendmsg_mfc(_metadata, self, RTM_NEWROUTE, &mfc_attr); + if (variant->family == AF_INET) { + mfc_attr.table = table_id; + err = nl_sendmsg_mfc(_metadata, self, variant, RTM_NEWROUTE, &mfc_attr); + } else { + err = setsockopt(self->raw_sk, + variant->level, variant->opts[MRT_ADD_MFC - MRT_BASE], + &self->mfc, variant->mfc_size); + } ASSERT_EQ(0, err); /* Flush mrt->vif_table[] and all caches. */ - flags = MRT_FLUSH_VIFS | MRT_FLUSH_VIFS_STATIC | - MRT_FLUSH_MFC | MRT_FLUSH_MFC_STATIC; err = setsockopt(self->raw_sk, variant->level, variant->opts[MRT_FLUSH - MRT_BASE], - &flags, sizeof(flags)); + &variant->flush_flags, sizeof(variant->flush_flags)); ASSERT_EQ(0, err); } +XFAIL_ADD(ipmr, ipv6, mrt_add_mfc_netlink); +XFAIL_ADD(ipmr, ipv6, mrt_add_mfc_netlink_proxy); +XFAIL_ADD(ipmr, ipv6, mrt_add_mfc_netlink_no_vif); +XFAIL_ADD(ipmr, ipv6, mrt_del_mfc_netlink_netns_dismantle); + TEST_HARNESS_MAIN |