mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-28 00:22:48 +00:00
Add support for IPv6 scoped addresses to vxlan
MFC after: 2 weeks
This commit is contained in:
Bryan Venteicher
parent
8bbeea2b1d
commit
33e0d8f057
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=327375
@ -236,25 +236,23 @@ DECL_CMD_FUNC(setvxlan_local, addr, d)
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switch (ai->ai_family) {
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#ifdef INET
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case AF_INET: {
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struct in_addr addr = ((struct sockaddr_in *) sa)->sin_addr;
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struct sockaddr_in *sin = (struct sockaddr_in *)sa;
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if (IN_MULTICAST(ntohl(addr.s_addr)))
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if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
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errx(1, "local address cannot be multicast");
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cmd.vxlcmd_sa.in4.sin_family = AF_INET;
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cmd.vxlcmd_sa.in4.sin_addr = addr;
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cmd.vxlcmd_sa.in4 = *sin;
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break;
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}
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#endif
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#ifdef INET6
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case AF_INET6: {
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struct in6_addr *addr = &((struct sockaddr_in6 *)sa)->sin6_addr;
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struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
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if (IN6_IS_ADDR_MULTICAST(addr))
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if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
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errx(1, "local address cannot be multicast");
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cmd.vxlcmd_sa.in6.sin6_family = AF_INET6;
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cmd.vxlcmd_sa.in6.sin6_addr = *addr;
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cmd.vxlcmd_sa.in6 = *sin6;
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break;
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}
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#endif
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@ -267,10 +265,10 @@ DECL_CMD_FUNC(setvxlan_local, addr, d)
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if (!vxlan_exists(s)) {
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if (cmd.vxlcmd_sa.sa.sa_family == AF_INET) {
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params.vxlp_with |= VXLAN_PARAM_WITH_LOCAL_ADDR4;
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params.vxlp_local_in4 = cmd.vxlcmd_sa.in4.sin_addr;
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params.vxlp_local_sa.in4 = cmd.vxlcmd_sa.in4;
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} else {
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params.vxlp_with |= VXLAN_PARAM_WITH_LOCAL_ADDR6;
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params.vxlp_local_in6 = cmd.vxlcmd_sa.in6.sin6_addr;
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params.vxlp_local_sa.in6 = cmd.vxlcmd_sa.in6;
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}
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return;
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}
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@ -298,25 +296,23 @@ DECL_CMD_FUNC(setvxlan_remote, addr, d)
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switch (ai->ai_family) {
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#ifdef INET
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case AF_INET: {
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struct in_addr addr = ((struct sockaddr_in *)sa)->sin_addr;
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struct sockaddr_in *sin = (struct sockaddr_in *)sa;
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if (IN_MULTICAST(ntohl(addr.s_addr)))
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if (IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
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errx(1, "remote address cannot be multicast");
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cmd.vxlcmd_sa.in4.sin_family = AF_INET;
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cmd.vxlcmd_sa.in4.sin_addr = addr;
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cmd.vxlcmd_sa.in4 = *sin;
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break;
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}
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#endif
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#ifdef INET6
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case AF_INET6: {
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struct in6_addr *addr = &((struct sockaddr_in6 *)sa)->sin6_addr;
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struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
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if (IN6_IS_ADDR_MULTICAST(addr))
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if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
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errx(1, "remote address cannot be multicast");
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cmd.vxlcmd_sa.in6.sin6_family = AF_INET6;
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cmd.vxlcmd_sa.in6.sin6_addr = *addr;
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cmd.vxlcmd_sa.in6 = *sin6;
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break;
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}
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#endif
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@ -329,10 +325,10 @@ DECL_CMD_FUNC(setvxlan_remote, addr, d)
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if (!vxlan_exists(s)) {
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if (cmd.vxlcmd_sa.sa.sa_family == AF_INET) {
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params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR4;
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params.vxlp_remote_in4 = cmd.vxlcmd_sa.in4.sin_addr;
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params.vxlp_remote_sa.in4 = cmd.vxlcmd_sa.in4;
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} else {
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params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR6;
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params.vxlp_remote_in6 = cmd.vxlcmd_sa.in6.sin6_addr;
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params.vxlp_remote_sa.in6 = cmd.vxlcmd_sa.in6;
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}
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return;
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}
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@ -360,25 +356,23 @@ DECL_CMD_FUNC(setvxlan_group, addr, d)
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switch (ai->ai_family) {
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#ifdef INET
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case AF_INET: {
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struct in_addr addr = ((struct sockaddr_in *)sa)->sin_addr;
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struct sockaddr_in *sin = (struct sockaddr_in *)sa;
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if (!IN_MULTICAST(ntohl(addr.s_addr)))
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if (!IN_MULTICAST(ntohl(sin->sin_addr.s_addr)))
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errx(1, "group address must be multicast");
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cmd.vxlcmd_sa.in4.sin_family = AF_INET;
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cmd.vxlcmd_sa.in4.sin_addr = addr;
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cmd.vxlcmd_sa.in4 = *sin;
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break;
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}
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#endif
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#ifdef INET6
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case AF_INET6: {
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struct in6_addr *addr = &((struct sockaddr_in6 *)sa)->sin6_addr;
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struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
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if (!IN6_IS_ADDR_MULTICAST(addr))
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if (!IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
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errx(1, "group address must be multicast");
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cmd.vxlcmd_sa.in6.sin6_family = AF_INET6;
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cmd.vxlcmd_sa.in6.sin6_addr = *addr;
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cmd.vxlcmd_sa.in6 = *sin6;
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break;
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}
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#endif
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@ -391,10 +385,10 @@ DECL_CMD_FUNC(setvxlan_group, addr, d)
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if (!vxlan_exists(s)) {
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if (cmd.vxlcmd_sa.sa.sa_family == AF_INET) {
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params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR4;
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params.vxlp_remote_in4 = cmd.vxlcmd_sa.in4.sin_addr;
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params.vxlp_remote_sa.in4 = cmd.vxlcmd_sa.in4;
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} else {
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params.vxlp_with |= VXLAN_PARAM_WITH_REMOTE_ADDR6;
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params.vxlp_remote_in6 = cmd.vxlcmd_sa.in6.sin6_addr;
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params.vxlp_remote_sa.in6 = cmd.vxlcmd_sa.in6;
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}
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return;
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}
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@ -68,10 +68,12 @@ __FBSDID("$FreeBSD$");
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#include <netinet/ip.h>
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#include <netinet/ip6.h>
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#include <netinet/ip_var.h>
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#include <netinet6/ip6_var.h>
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#include <netinet/udp.h>
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#include <netinet/udp_var.h>
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#include <netinet6/ip6_var.h>
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#include <netinet6/scope6_var.h>
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struct vxlan_softc;
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LIST_HEAD(vxlan_softc_head, vxlan_softc);
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@ -215,9 +217,9 @@ static void vxlan_ftable_fini(struct vxlan_softc *);
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static void vxlan_ftable_flush(struct vxlan_softc *, int);
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static void vxlan_ftable_expire(struct vxlan_softc *);
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static int vxlan_ftable_update_locked(struct vxlan_softc *,
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const struct sockaddr *, const uint8_t *,
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const union vxlan_sockaddr *, const uint8_t *,
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struct rm_priotracker *);
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static int vxlan_ftable_update(struct vxlan_softc *,
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static int vxlan_ftable_learn(struct vxlan_softc *,
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const struct sockaddr *, const uint8_t *);
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static int vxlan_ftable_sysctl_dump(SYSCTL_HANDLER_ARGS);
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@ -358,6 +360,7 @@ static void vxlan_sockaddr_in_copy(union vxlan_sockaddr *,
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static int vxlan_sockaddr_supported(const union vxlan_sockaddr *, int);
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static int vxlan_sockaddr_in_any(const union vxlan_sockaddr *);
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static int vxlan_sockaddr_in_multicast(const union vxlan_sockaddr *);
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static int vxlan_sockaddr_in6_embedscope(union vxlan_sockaddr *);
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static int vxlan_can_change_config(struct vxlan_softc *);
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static int vxlan_check_vni(uint32_t);
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@ -576,10 +579,10 @@ vxlan_ftable_expire(struct vxlan_softc *sc)
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}
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static int
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vxlan_ftable_update_locked(struct vxlan_softc *sc, const struct sockaddr *sa,
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const uint8_t *mac, struct rm_priotracker *tracker)
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vxlan_ftable_update_locked(struct vxlan_softc *sc,
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const union vxlan_sockaddr *vxlsa, const uint8_t *mac,
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struct rm_priotracker *tracker)
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{
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union vxlan_sockaddr vxlsa;
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struct vxlan_ftable_entry *fe;
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int error;
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@ -596,7 +599,7 @@ again:
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fe->vxlfe_expire = time_uptime + sc->vxl_ftable_timeout;
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if (!VXLAN_FE_IS_DYNAMIC(fe) ||
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vxlan_sockaddr_in_equal(&fe->vxlfe_raddr, sa))
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vxlan_sockaddr_in_equal(&fe->vxlfe_raddr, &vxlsa->sa))
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return (0);
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if (!VXLAN_LOCK_WOWNED(sc)) {
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VXLAN_RUNLOCK(sc, tracker);
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@ -604,7 +607,7 @@ again:
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sc->vxl_stats.ftable_lock_upgrade_failed++;
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goto again;
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}
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vxlan_sockaddr_in_copy(&fe->vxlfe_raddr, sa);
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vxlan_sockaddr_in_copy(&fe->vxlfe_raddr, &vxlsa->sa);
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return (0);
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}
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@ -624,15 +627,7 @@ again:
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if (fe == NULL)
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return (ENOMEM);
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/*
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* The source port may be randomly select by the remove host, so
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* use the port of the default destination address.
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*/
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vxlan_sockaddr_copy(&vxlsa, sa);
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vxlsa.in4.sin_port = sc->vxl_dst_addr.in4.sin_port;
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vxlan_ftable_entry_init(sc, fe, mac, &vxlsa.sa,
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VXLAN_FE_FLAG_DYNAMIC);
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vxlan_ftable_entry_init(sc, fe, mac, &vxlsa->sa, VXLAN_FE_FLAG_DYNAMIC);
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/* The prior lookup failed, so the insert should not. */
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error = vxlan_ftable_entry_insert(sc, fe);
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@ -642,14 +637,28 @@ again:
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}
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static int
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vxlan_ftable_update(struct vxlan_softc *sc, const struct sockaddr *sa,
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vxlan_ftable_learn(struct vxlan_softc *sc, const struct sockaddr *sa,
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const uint8_t *mac)
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{
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struct rm_priotracker tracker;
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union vxlan_sockaddr vxlsa;
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int error;
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/*
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* The source port may be randomly selected by the remote host, so
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* use the port of the default destination address.
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*/
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vxlan_sockaddr_copy(&vxlsa, sa);
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vxlsa.in4.sin_port = sc->vxl_dst_addr.in4.sin_port;
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if (VXLAN_SOCKADDR_IS_IPV6(&vxlsa)) {
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error = vxlan_sockaddr_in6_embedscope(&vxlsa);
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if (error)
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return (error);
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}
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VXLAN_RLOCK(sc, &tracker);
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error = vxlan_ftable_update_locked(sc, sa, mac, &tracker);
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error = vxlan_ftable_update_locked(sc, &vxlsa, mac, &tracker);
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VXLAN_UNLOCK(sc, &tracker);
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return (error);
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@ -1051,8 +1060,8 @@ vxlan_socket_ifdetach(struct vxlan_socket *vso, struct ifnet *ifp,
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static struct vxlan_socket *
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vxlan_socket_mc_lookup(const union vxlan_sockaddr *vxlsa)
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{
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struct vxlan_socket *vso;
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union vxlan_sockaddr laddr;
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struct vxlan_socket *vso;
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laddr = *vxlsa;
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@ -1406,7 +1415,7 @@ vxlan_setup_multicast_interface(struct vxlan_softc *sc)
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ifp = ifunit_ref(sc->vxl_mc_ifname);
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if (ifp == NULL) {
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if_printf(sc->vxl_ifp, "multicast interfaces %s does "
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if_printf(sc->vxl_ifp, "multicast interface %s does "
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"not exist\n", sc->vxl_mc_ifname);
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return (ENOENT);
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}
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@ -1830,6 +1839,13 @@ vxlan_ctrl_get_config(struct vxlan_softc *sc, void *arg)
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cfg->vxlc_ttl = sc->vxl_ttl;
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VXLAN_RUNLOCK(sc, &tracker);
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#ifdef INET6
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if (VXLAN_SOCKADDR_IS_IPV6(&cfg->vxlc_local_sa))
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sa6_recoverscope(&cfg->vxlc_local_sa.in6);
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if (VXLAN_SOCKADDR_IS_IPV6(&cfg->vxlc_remote_sa))
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sa6_recoverscope(&cfg->vxlc_remote_sa.in6);
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#endif
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return (0);
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}
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@ -1869,6 +1885,11 @@ vxlan_ctrl_set_local_addr(struct vxlan_softc *sc, void *arg)
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return (EINVAL);
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if (vxlan_sockaddr_in_multicast(vxlsa) != 0)
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return (EINVAL);
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if (VXLAN_SOCKADDR_IS_IPV6(vxlsa)) {
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error = vxlan_sockaddr_in6_embedscope(vxlsa);
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if (error)
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return (error);
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}
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VXLAN_WLOCK(sc);
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if (vxlan_can_change_config(sc)) {
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@ -1893,6 +1914,11 @@ vxlan_ctrl_set_remote_addr(struct vxlan_softc *sc, void *arg)
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if (!VXLAN_SOCKADDR_IS_IPV46(vxlsa))
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return (EINVAL);
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if (VXLAN_SOCKADDR_IS_IPV6(vxlsa)) {
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error = vxlan_sockaddr_in6_embedscope(vxlsa);
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if (error)
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return (error);
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}
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VXLAN_WLOCK(sc);
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if (vxlan_can_change_config(sc)) {
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@ -2093,6 +2119,12 @@ vxlan_ctrl_ftable_entry_add(struct vxlan_softc *sc, void *arg)
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if (vxlsa.sa.sa_family != sc->vxl_dst_addr.sa.sa_family)
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return (EAFNOSUPPORT);
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if (VXLAN_SOCKADDR_IS_IPV6(&vxlsa)) {
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error = vxlan_sockaddr_in6_embedscope(&vxlsa);
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if (error)
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return (error);
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}
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fe = vxlan_ftable_entry_alloc();
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if (fe == NULL)
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return (ENOMEM);
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@ -2248,7 +2280,6 @@ vxlan_pick_source_port(struct vxlan_softc *sc, struct mbuf *m)
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range = sc->vxl_max_port - sc->vxl_min_port + 1;
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/* check if flowid is set and not opaque */
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if (M_HASHTYPE_ISHASH(m))
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hash = m->m_pkthdr.flowid;
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else
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@ -2536,7 +2567,7 @@ vxlan_input(struct vxlan_socket *vso, uint32_t vni, struct mbuf **m0,
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}
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if (sc->vxl_flags & VXLAN_FLAG_LEARN)
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vxlan_ftable_update(sc, sa, eh->ether_shost);
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vxlan_ftable_learn(sc, sa, eh->ether_shost);
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m_clrprotoflags(m);
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m->m_pkthdr.rcvif = ifp;
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@ -2588,6 +2619,18 @@ vxlan_set_user_config(struct vxlan_softc *sc, struct ifvxlanparam *vxlp)
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if (vxlp->vxlp_with & (VXLAN_PARAM_WITH_LOCAL_ADDR6 |
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VXLAN_PARAM_WITH_REMOTE_ADDR6))
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return (EAFNOSUPPORT);
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#else
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if (vxlp->vxlp_with & VXLAN_PARAM_WITH_LOCAL_ADDR6) {
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int error = vxlan_sockaddr_in6_embedscope(&vxlp->vxlp_local_sa);
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if (error)
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return (error);
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}
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if (vxlp->vxlp_with & VXLAN_PARAM_WITH_REMOTE_ADDR6) {
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int error = vxlan_sockaddr_in6_embedscope(
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&vxlp->vxlp_remote_sa);
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if (error)
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return (error);
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}
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#endif
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if (vxlp->vxlp_with & VXLAN_PARAM_WITH_VNI) {
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@ -2598,21 +2641,25 @@ vxlan_set_user_config(struct vxlan_softc *sc, struct ifvxlanparam *vxlp)
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if (vxlp->vxlp_with & VXLAN_PARAM_WITH_LOCAL_ADDR4) {
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sc->vxl_src_addr.in4.sin_len = sizeof(struct sockaddr_in);
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sc->vxl_src_addr.in4.sin_family = AF_INET;
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sc->vxl_src_addr.in4.sin_addr = vxlp->vxlp_local_in4;
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sc->vxl_src_addr.in4.sin_addr =
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vxlp->vxlp_local_sa.in4.sin_addr;
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} else if (vxlp->vxlp_with & VXLAN_PARAM_WITH_LOCAL_ADDR6) {
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sc->vxl_src_addr.in6.sin6_len = sizeof(struct sockaddr_in6);
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sc->vxl_src_addr.in6.sin6_family = AF_INET6;
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sc->vxl_src_addr.in6.sin6_addr = vxlp->vxlp_local_in6;
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sc->vxl_src_addr.in6.sin6_addr =
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vxlp->vxlp_local_sa.in6.sin6_addr;
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}
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if (vxlp->vxlp_with & VXLAN_PARAM_WITH_REMOTE_ADDR4) {
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sc->vxl_dst_addr.in4.sin_len = sizeof(struct sockaddr_in);
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sc->vxl_dst_addr.in4.sin_family = AF_INET;
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sc->vxl_dst_addr.in4.sin_addr = vxlp->vxlp_remote_in4;
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sc->vxl_dst_addr.in4.sin_addr =
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vxlp->vxlp_remote_sa.in4.sin_addr;
|
||||
} else if (vxlp->vxlp_with & VXLAN_PARAM_WITH_REMOTE_ADDR6) {
|
||||
sc->vxl_dst_addr.in6.sin6_len = sizeof(struct sockaddr_in6);
|
||||
sc->vxl_dst_addr.in6.sin6_family = AF_INET6;
|
||||
sc->vxl_dst_addr.in6.sin6_addr = vxlp->vxlp_remote_in6;
|
||||
sc->vxl_dst_addr.in6.sin6_addr =
|
||||
vxlp->vxlp_remote_sa.in6.sin6_addr;
|
||||
}
|
||||
|
||||
if (vxlp->vxlp_with & VXLAN_PARAM_WITH_LOCAL_PORT)
|
||||
@ -2930,6 +2977,21 @@ vxlan_sockaddr_in_multicast(const union vxlan_sockaddr *vxladdr)
|
||||
return (mc);
|
||||
}
|
||||
|
||||
static int
|
||||
vxlan_sockaddr_in6_embedscope(union vxlan_sockaddr *vxladdr)
|
||||
{
|
||||
int error;
|
||||
|
||||
MPASS(VXLAN_SOCKADDR_IS_IPV6(vxladdr));
|
||||
#ifdef INET6
|
||||
error = sa6_embedscope(&vxladdr->in6, V_ip6_use_defzone);
|
||||
#else
|
||||
error = EAFNOSUPPORT;
|
||||
#endif
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
vxlan_can_change_config(struct vxlan_softc *sc)
|
||||
{
|
||||
|
||||
@ -54,6 +54,12 @@ struct vxlan_header {
|
||||
#define VXLAN_PORT 4789
|
||||
#define VXLAN_LEGACY_PORT 8472
|
||||
|
||||
union vxlan_sockaddr {
|
||||
struct sockaddr sa;
|
||||
struct sockaddr_in in4;
|
||||
struct sockaddr_in6 in6;
|
||||
};
|
||||
|
||||
struct ifvxlanparam {
|
||||
uint64_t vxlp_with;
|
||||
|
||||
@ -72,10 +78,8 @@ struct ifvxlanparam {
|
||||
#define VXLAN_PARAM_WITH_LEARN 0x1000
|
||||
|
||||
uint32_t vxlp_vni;
|
||||
struct in_addr vxlp_local_in4;
|
||||
struct in6_addr vxlp_local_in6;
|
||||
struct in_addr vxlp_remote_in4;
|
||||
struct in6_addr vxlp_remote_in6;
|
||||
union vxlan_sockaddr vxlp_local_sa;
|
||||
union vxlan_sockaddr vxlp_remote_sa;
|
||||
uint16_t vxlp_local_port;
|
||||
uint16_t vxlp_remote_port;
|
||||
uint16_t vxlp_min_port;
|
||||
@ -87,12 +91,6 @@ struct ifvxlanparam {
|
||||
uint8_t vxlp_learn;
|
||||
};
|
||||
|
||||
union vxlan_sockaddr {
|
||||
struct sockaddr sa;
|
||||
struct sockaddr_in in4;
|
||||
struct sockaddr_in6 in6;
|
||||
};
|
||||
|
||||
#define VXLAN_SOCKADDR_IS_IPV4(_vxsin) ((_vxsin)->sa.sa_family == AF_INET)
|
||||
#define VXLAN_SOCKADDR_IS_IPV6(_vxsin) ((_vxsin)->sa.sa_family == AF_INET6)
|
||||
#define VXLAN_SOCKADDR_IS_IPV46(_vxsin) \
|
||||
|
||||
Loading…
Reference in New Issue
Block a user