Paul Gofman : server: Support SO_EXCLUSIVEADDRUSE socket option.
Module: wine Branch: master Commit: a9ae1e041c078fda48a5a0de7c7ccf95dd90a73a URL: https://gitlab.winehq.org/wine/wine/-/commit/a9ae1e041c078fda48a5a0de7c7ccf9... Author: Paul Gofman <pgofman(a)codeweavers.com> Date: Mon Oct 31 12:20:10 2022 -0600 server: Support SO_EXCLUSIVEADDRUSE socket option. --- dlls/ws2_32/tests/sock.c | 22 +++++++++------------- server/sock.c | 33 ++++++++++++++++++++++++++------- 2 files changed, 35 insertions(+), 20 deletions(-) diff --git a/dlls/ws2_32/tests/sock.c b/dlls/ws2_32/tests/sock.c index 44a1691950a..9b39ecff3c5 100644 --- a/dlls/ws2_32/tests/sock.c +++ b/dlls/ws2_32/tests/sock.c @@ -2043,19 +2043,18 @@ static void test_reuseaddr(void) } s[2]; int error; - BOOL todo; } tests_exclusive[] = { { {{ AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), TRUE, }, { AF_INET, (struct sockaddr *)&saddr_in_loopback, sizeof(saddr_in_loopback), FALSE, }}, - WSAEACCES, TRUE, + WSAEACCES, }, { {{ AF_INET6, (struct sockaddr *)&saddr_in6_any, sizeof(saddr_in6_any), TRUE, }, { AF_INET, (struct sockaddr *)&saddr_in_loopback, sizeof(saddr_in_loopback), FALSE, }}, - WSAEACCES, TRUE, + WSAEACCES, }, { {{ AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), FALSE, }, @@ -2065,7 +2064,7 @@ static void test_reuseaddr(void) { {{ AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), TRUE, }, { AF_INET, (struct sockaddr *)&saddr_in_loopback, sizeof(saddr_in_loopback), TRUE, }}, - WSAEACCES, TRUE, + WSAEACCES, }, { {{ AF_INET, (struct sockaddr *)&saddr_in_loopback, sizeof(saddr_in_loopback), TRUE, }, @@ -2075,12 +2074,12 @@ static void test_reuseaddr(void) { {{ AF_INET, (struct sockaddr *)&saddr_in_loopback, sizeof(saddr_in_loopback), FALSE, }, { AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), TRUE, }}, - WSAEADDRINUSE, TRUE, + WSAEADDRINUSE, }, { {{ AF_INET, (struct sockaddr *)&saddr_in_loopback, sizeof(saddr_in_loopback), FALSE, }, { AF_INET6, (struct sockaddr *)&saddr_in6_any, sizeof(saddr_in6_any), TRUE, }}, - WSAEADDRINUSE, TRUE, + WSAEADDRINUSE, }, { {{ AF_INET6, (struct sockaddr *)&saddr_in6_loopback, sizeof(saddr_in6_loopback), FALSE, }, @@ -2095,17 +2094,17 @@ static void test_reuseaddr(void) { {{ AF_INET6, (struct sockaddr *)&saddr_in6_loopback_v4mapped, sizeof(saddr_in6_loopback_v4mapped), FALSE, }, { AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), TRUE, }}, - WSAEADDRINUSE, TRUE, + WSAEADDRINUSE, }, { {{ AF_INET6, (struct sockaddr *)&saddr_in6_any, sizeof(saddr_in6_any), TRUE, }, { AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), FALSE, }}, - WSAEACCES, TRUE, + WSAEACCES, }, { {{ AF_INET6, (struct sockaddr *)&saddr_in6_any, sizeof(saddr_in6_any), FALSE, }, { AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), TRUE, }}, - NOERROR, TRUE, + NOERROR, }, { {{ AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), FALSE, }, @@ -2120,7 +2119,7 @@ static void test_reuseaddr(void) { {{ AF_INET6, (struct sockaddr *)&saddr_in6_any, sizeof(saddr_in6_any), FALSE, }, { AF_INET, (struct sockaddr *)&saddr_in_any, sizeof(saddr_in_any), FALSE, }}, - NOERROR, TRUE, + NOERROR, }, { {{ AF_INET6, (struct sockaddr *)&saddr_in6_any_v4mapped, sizeof(saddr_in6_any_v4mapped), FALSE, }, @@ -2398,14 +2397,11 @@ static void test_reuseaddr(void) rc = bind(s[1], tests_exclusive[i].s[1].addr, tests_exclusive[i].s[1].addrlen); - todo_wine_if(tests_exclusive[i].todo) - { if (tests_exclusive[i].error) ok(rc == SOCKET_ERROR && WSAGetLastError() == tests_exclusive[i].error, "got rc %d, error %d, expected error %d.\n", rc, WSAGetLastError(), tests_exclusive[i].error); else ok(!rc, "got error %d.\n", WSAGetLastError()); - } closesocket(s[0]); closesocket(s[1]); diff --git a/server/sock.c b/server/sock.c index d1c63dc47c3..c130821b7f4 100644 --- a/server/sock.c +++ b/server/sock.c @@ -187,6 +187,7 @@ struct bound_addr { struct rb_entry entry; union unix_sockaddr addr; + int match_any_addr; int reuse_count; }; @@ -276,7 +277,8 @@ static int addr_compare( const void *key, const struct wine_rb_entry *entry ) { if (addr->addr.in.sin_port != bound_addr->addr.in.sin_port) return addr->addr.in.sin_port < bound_addr->addr.in.sin_port ? -1 : 1; - if (addr->addr.in.sin_addr.s_addr == bound_addr->addr.in.sin_addr.s_addr) + if (bound_addr->match_any_addr || addr->match_any_addr + || addr->addr.in.sin_addr.s_addr == bound_addr->addr.in.sin_addr.s_addr) return 0; return addr->addr.in.sin_addr.s_addr < bound_addr->addr.in.sin_addr.s_addr ? -1 : 1; } @@ -284,14 +286,16 @@ static int addr_compare( const void *key, const struct wine_rb_entry *entry ) assert( addr->addr.addr.sa_family == AF_INET6 ); if (addr->addr.in6.sin6_port != bound_addr->addr.in6.sin6_port) return addr->addr.in6.sin6_port < bound_addr->addr.in6.sin6_port ? -1 : 1; + if (bound_addr->match_any_addr || addr->match_any_addr) return 0; return memcmp( &addr->addr.in6.sin6_addr, &bound_addr->addr.in6.sin6_addr, sizeof(addr->addr.in6.sin6_addr) ); } -static int ipv4addr_from_v6( union unix_sockaddr *v4addr, const struct sockaddr_in6 *in6 ) +static int ipv4addr_from_v6( union unix_sockaddr *v4addr, const struct sockaddr_in6 *in6, int map_unspecified ) { v4addr->in.sin_family = AF_INET; v4addr->in.sin_port = in6->sin6_port; - if (IN6_IS_ADDR_UNSPECIFIED(&in6->sin6_addr)) + + if (map_unspecified && IN6_IS_ADDR_UNSPECIFIED(&in6->sin6_addr)) { v4addr->in.sin_addr.s_addr = htonl( INADDR_ANY ); return 1; @@ -318,6 +322,15 @@ static int should_track_conflicts_for_addr( struct sock *sock, const union unix_ return 0; } +static int is_any_addr( const union unix_sockaddr *addr ) +{ + if (addr->addr.sa_family == AF_INET && addr->in.sin_addr.s_addr == htonl( INADDR_ANY )) + return 1; + if (addr->addr.sa_family == AF_INET6 && IN6_IS_ADDR_UNSPECIFIED(&addr->in6.sin6_addr)) + return 1; + return 0; +} + static int check_addr_usage( struct sock *sock, const union unix_sockaddr *addr, int v6only ) { struct bound_addr *bound_addr, search_addr; @@ -326,26 +339,30 @@ static int check_addr_usage( struct sock *sock, const union unix_sockaddr *addr, if (!should_track_conflicts_for_addr( sock, addr )) return 0; search_addr.addr = *addr; + search_addr.match_any_addr = sock->exclusiveaddruse && is_any_addr( addr ); if ((entry = rb_get( &bound_addresses_tree, &search_addr ))) { bound_addr = WINE_RB_ENTRY_VALUE(entry, struct bound_addr, entry); if (bound_addr->reuse_count == -1 || !sock->reuseaddr) { - set_error( sock->reuseaddr ? STATUS_ACCESS_DENIED : STATUS_SHARING_VIOLATION ); + set_error( sock->reuseaddr || bound_addr->match_any_addr + ? STATUS_ACCESS_DENIED : STATUS_SHARING_VIOLATION ); return 1; } } if (sock->family != WS_AF_INET6 || v6only) return 0; - if (!ipv4addr_from_v6( &search_addr.addr, &addr->in6 )) return 0; + if (!ipv4addr_from_v6( &search_addr.addr, &addr->in6, sock->exclusiveaddruse )) return 0; + search_addr.match_any_addr = sock->exclusiveaddruse && is_any_addr( &search_addr.addr ); if ((entry = rb_get( &bound_addresses_tree, &search_addr ))) { bound_addr = WINE_RB_ENTRY_VALUE(entry, struct bound_addr, entry); if (bound_addr->reuse_count == -1 || !sock->reuseaddr) { - set_error( sock->reuseaddr ? STATUS_ACCESS_DENIED : STATUS_SHARING_VIOLATION ); + set_error( sock->reuseaddr || bound_addr->match_any_addr + ? STATUS_ACCESS_DENIED : STATUS_SHARING_VIOLATION ); return 1; } } @@ -360,6 +377,7 @@ static struct bound_addr *register_bound_address( struct sock *sock, const union return NULL; bound_addr->addr = *addr; + bound_addr->match_any_addr = sock->exclusiveaddruse && is_any_addr( addr ); if (rb_put( &bound_addresses_tree, bound_addr, &bound_addr->entry )) { @@ -392,7 +410,8 @@ static void update_addr_usage( struct sock *sock, const union unix_sockaddr *add sock->bound_addr[0] = register_bound_address( sock, addr ); if (sock->family != WS_AF_INET6 || v6only) return; - if (!ipv4addr_from_v6( &v4addr, &addr->in6 )) return; + + if (!ipv4addr_from_v6( &v4addr, &addr->in6, sock->exclusiveaddruse )) return; sock->bound_addr[1] = register_bound_address( sock, &v4addr ); }
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Alexandre Julliard