Date: Sat, 26 Jan 2013 00:57:29 +0000 (UTC) From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r245932 - head/sys/netinet Message-ID: <201301260057.r0Q0vTUx088155@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: np Date: Sat Jan 26 00:57:29 2013 New Revision: 245932 URL: http://svnweb.freebsd.org/changeset/base/245932 Log: Teach toe_l2_resolve to resolve IPv6 destinations too. Reviewed by: bz@ Modified: head/sys/netinet/toecore.c Modified: head/sys/netinet/toecore.c ============================================================================== --- head/sys/netinet/toecore.c Sat Jan 26 00:41:54 2013 (r245931) +++ head/sys/netinet/toecore.c Sat Jan 26 00:57:29 2013 (r245932) @@ -52,6 +52,7 @@ __FBSDID("$FreeBSD$"); #include <netinet/in.h> #include <netinet/in_pcb.h> #include <netinet/in_var.h> +#include <netinet6/in6_var.h> #include <netinet6/in6_pcb.h> #include <netinet6/nd6.h> #define TCPSTATES @@ -444,6 +445,68 @@ toe_route_redirect_event(void *arg __unu return; } +#ifdef INET6 +/* + * XXX: no checks to verify that sa is really a neighbor because we assume it is + * the result of a route lookup and is on-link on the given ifp. + */ +static int +toe_nd6_resolve(struct ifnet *ifp, struct sockaddr *sa, uint8_t *lladdr) +{ + struct llentry *lle; + struct sockaddr_in6 *sin6 = (void *)sa; + int rc, flags = 0; + +restart: + IF_AFDATA_RLOCK(ifp); + lle = lla_lookup(LLTABLE6(ifp), flags, sa); + IF_AFDATA_RUNLOCK(ifp); + if (lle == NULL) { + IF_AFDATA_LOCK(ifp); + lle = nd6_lookup(&sin6->sin6_addr, ND6_CREATE | ND6_EXCLUSIVE, + ifp); + IF_AFDATA_UNLOCK(ifp); + if (lle == NULL) + return (ENOMEM); /* Couldn't create entry in cache. */ + lle->ln_state = ND6_LLINFO_INCOMPLETE; + nd6_llinfo_settimer_locked(lle, + (long)ND_IFINFO(ifp)->retrans * hz / 1000); + LLE_WUNLOCK(lle); + + nd6_ns_output(ifp, NULL, &sin6->sin6_addr, NULL, 0); + + return (EWOULDBLOCK); + } + + if (lle->ln_state == ND6_LLINFO_STALE) { + if ((flags & LLE_EXCLUSIVE) == 0) { + LLE_RUNLOCK(lle); + flags |= LLE_EXCLUSIVE; + goto restart; + } + + LLE_WLOCK_ASSERT(lle); + + lle->la_asked = 0; + lle->ln_state = ND6_LLINFO_DELAY; + nd6_llinfo_settimer_locked(lle, (long)V_nd6_delay * hz); + } + + if (lle->la_flags & LLE_VALID) { + memcpy(lladdr, &lle->ll_addr, ifp->if_addrlen); + rc = 0; + } else + rc = EWOULDBLOCK; + + if (flags & LLE_EXCLUSIVE) + LLE_WUNLOCK(lle); + else + LLE_RUNLOCK(lle); + + return (rc); +} +#endif + /* * Returns 0 or EWOULDBLOCK on success (any other value is an error). 0 means * lladdr and vtag are valid on return, EWOULDBLOCK means the TOE driver's @@ -453,7 +516,9 @@ int toe_l2_resolve(struct toedev *tod, struct ifnet *ifp, struct sockaddr *sa, uint8_t *lladdr, uint16_t *vtag) { +#ifdef INET struct llentry *lle; +#endif int rc; switch (sa->sa_family) { @@ -464,7 +529,7 @@ toe_l2_resolve(struct toedev *tod, struc #endif #ifdef INET6 case AF_INET6: - rc = nd6_storelladdr(ifp, NULL, sa, lladdr, &lle); + rc = toe_nd6_resolve(ifp, sa, lladdr); break; #endif default:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201301260057.r0Q0vTUx088155>