From b09228c86d4049b11c6ddf9284a637a211993b44 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 15 Apr 2009 12:04:06 -0400 Subject: [PATCH] nfs-utils: add IPv6 code to gssd All of the pieces to handle IPv6 are now in place. Add IPv6-specific code wrapped in the proper #ifdef's so that IPv6 support works when it's enabled at build-time. Reviewed-by: Chuck Lever Signed-off-by: Jeff Layton Signed-off-by: Steve Dickson --- utils/gssd/gssd_proc.c | 44 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/utils/gssd/gssd_proc.c b/utils/gssd/gssd_proc.c index 1d55d8d..02239d2 100644 --- a/utils/gssd/gssd_proc.c +++ b/utils/gssd/gssd_proc.c @@ -106,15 +106,32 @@ int pollsize; /* the size of pollaray (in pollfd's) */ /* * convert a presentation address string to a sockaddr_storage struct. Returns * true on success and false on failure. + * + * Note that we do not populate the sin6_scope_id field here for IPv6 addrs. + * gssd nececessarily relies on hostname resolution and DNS AAAA records + * do not generally contain scope-id's. This means that GSSAPI auth really + * can't work with IPv6 link-local addresses. + * + * We *could* consider changing this if we did something like adopt the + * Microsoft "standard" of using the ipv6-literal.net domainname, but it's + * not really feasible at present. */ static int addrstr_to_sockaddr(struct sockaddr *sa, const char *addr, const int port) { struct sockaddr_in *s4 = (struct sockaddr_in *) sa; +#ifdef IPV6_SUPPORTED + struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa; +#endif /* IPV6_SUPPORTED */ if (inet_pton(AF_INET, addr, &s4->sin_addr)) { s4->sin_family = AF_INET; s4->sin_port = htons(port); +#ifdef IPV6_SUPPORTED + } else if (inet_pton(AF_INET6, addr, &s6->sin6_addr)) { + s6->sin6_family = AF_INET6; + s6->sin6_port = htons(port); +#endif /* IPV6_SUPPORTED */ } else { printerr(0, "ERROR: unable to convert %s to address\n", addr); return 0; @@ -138,6 +155,11 @@ sockaddr_to_hostname(const struct sockaddr *sa, const char *addr) case AF_INET: addrlen = sizeof(struct sockaddr_in); break; +#ifdef IPV6_SUPPORTED + case AF_INET6: + addrlen = sizeof(struct sockaddr_in6); + break; +#endif /* IPV6_SUPPORTED */ default: printerr(0, "ERROR: unrecognized addr family %d\n", sa->sa_family); @@ -556,6 +578,9 @@ populate_port(struct sockaddr *sa, const socklen_t salen, const unsigned short protocol) { struct sockaddr_in *s4 = (struct sockaddr_in *) sa; +#ifdef IPV6_SUPPORTED + struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa; +#endif /* IPV6_SUPPORTED */ unsigned short port; /* @@ -570,6 +595,15 @@ populate_port(struct sockaddr *sa, const socklen_t salen, return 1; } break; +#ifdef IPV6_SUPPORTED + case AF_INET6: + if (s6->sin6_port != 0) { + printerr(2, "DEBUG: port already set to %d\n", + ntohs(s6->sin6_port)); + return 1; + } + break; +#endif /* IPV6_SUPPORTED */ default: printerr(0, "ERROR: unsupported address family %d\n", sa->sa_family); @@ -604,6 +638,11 @@ set_port: case AF_INET: s4->sin_port = htons(port); break; +#ifdef IPV6_SUPPORTED + case AF_INET6: + s6->sin6_port = htons(port); + break; +#endif /* IPV6_SUPPORTED */ } return 1; @@ -698,6 +737,11 @@ int create_auth_rpc_client(struct clnt_info *clp, case AF_INET: salen = sizeof(struct sockaddr_in); break; +#ifdef IPV6_SUPPORTED + case AF_INET6: + salen = sizeof(struct sockaddr_in6); + break; +#endif /* IPV6_SUPPORTED */ default: printerr(1, "ERROR: Unknown address family %d\n", addr->sa_family); -- 2.39.2