From 60abb9889cea52022adf9c8bb946e9d19d79f9ed Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 31 Aug 2010 15:31:57 -0400 Subject: [PATCH] libexport.a: IPv6 support in client_check() Introduce support for IPv6 in client_check()'s helpers. The local addrs_match() twins are no longer needed since we can use nfs_compare_addrs() now. Signed-off-by: Chuck Lever Signed-off-by: Steve Dickson --- support/export/client.c | 65 +++++++++++++++++++++++++++-------------- 1 file changed, 43 insertions(+), 22 deletions(-) diff --git a/support/export/client.c b/support/export/client.c index 4c6cd69..c74961e 100644 --- a/support/export/client.c +++ b/support/export/client.c @@ -19,6 +19,7 @@ #include #include +#include "sockaddr.h" #include "misc.h" #include "nfslib.h" #include "exportfs.h" @@ -444,27 +445,6 @@ add_name(char *old, const char *add) return new; } -static _Bool -addrs_match4(const struct sockaddr *sa1, const struct sockaddr *sa2) -{ - const struct sockaddr_in *si1 = (const struct sockaddr_in *)sa1; - const struct sockaddr_in *si2 = (const struct sockaddr_in *)sa2; - - return si1->sin_addr.s_addr == si2->sin_addr.s_addr; -} - -static _Bool -addrs_match(const struct sockaddr *sa1, const struct sockaddr *sa2) -{ - if (sa1->sa_family == sa2->sa_family) - switch (sa1->sa_family) { - case AF_INET: - return addrs_match4(sa1, sa2); - } - - return false; -} - /* * Check each address listed in @ai against each address * stored in @clp. Return 1 if a match is found, otherwise @@ -477,7 +457,8 @@ check_fqdn(const nfs_client *clp, const struct addrinfo *ai) for (; ai; ai = ai->ai_next) for (i = 0; i < clp->m_naddr; i++) - if (addrs_match(ai->ai_addr, get_addrlist(clp, i))) + if (nfs_compare_sockaddr(ai->ai_addr, + get_addrlist(clp, i))) return 1; return 0; @@ -507,6 +488,43 @@ check_subnet_v4(const struct sockaddr_in *address, return 0; } +#ifdef IPV6_SUPPORTED +static int +check_subnet_v6(const struct sockaddr_in6 *address, + const struct sockaddr_in6 *mask, const struct addrinfo *ai) +{ + for (; ai; ai = ai->ai_next) { + struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)ai->ai_addr; + + if (sin6->sin6_family != AF_INET6) + continue; + + if (mask_match(address->sin6_addr.s6_addr32[0], + sin6->sin6_addr.s6_addr32[0], + mask->sin6_addr.s6_addr32[0]) && + mask_match(address->sin6_addr.s6_addr32[1], + sin6->sin6_addr.s6_addr32[1], + mask->sin6_addr.s6_addr32[1]) && + mask_match(address->sin6_addr.s6_addr32[2], + sin6->sin6_addr.s6_addr32[2], + mask->sin6_addr.s6_addr32[2]) && + mask_match(address->sin6_addr.s6_addr32[3], + sin6->sin6_addr.s6_addr32[3], + mask->sin6_addr.s6_addr32[3])) + return 1; + } + return 0; +} +#else /* !IPV6_SUPPORTED */ +static int +check_subnet_v6(const struct sockaddr_in6 *UNUSED(address), + const struct sockaddr_in6 *UNUSED(mask), + const struct addrinfo *UNUSED(ai)) +{ + return 0; +} +#endif /* !IPV6_SUPPORTED */ + /* * Check each address listed in @ai against the subnetwork or * host address stored in @clp. Return 1 if an address in @hp @@ -519,6 +537,9 @@ check_subnetwork(const nfs_client *clp, const struct addrinfo *ai) case AF_INET: return check_subnet_v4(get_addrlist_in(clp, 0), get_addrlist_in(clp, 1), ai); + case AF_INET6: + return check_subnet_v6(get_addrlist_in6(clp, 0), + get_addrlist_in6(clp, 1), ai); } return 0; -- 2.39.5