diff options
| author | Doug Barton <dougb@FreeBSD.org> | 2011-02-05 03:14:55 +0000 |
|---|---|---|
| committer | Doug Barton <dougb@FreeBSD.org> | 2011-02-05 03:14:55 +0000 |
| commit | fccc60c828fe78d2bd780145733aec0ab99dc91f (patch) | |
| tree | 601b0776df11a070020ab894b76fd90e36393936 /lib/isc/unix | |
| parent | f805c4c11684ad447d955512cb705ebc2aba9ef3 (diff) | |
Diffstat (limited to 'lib/isc/unix')
| -rw-r--r-- | lib/isc/unix/socket.c | 45 |
1 files changed, 42 insertions, 3 deletions
diff --git a/lib/isc/unix/socket.c b/lib/isc/unix/socket.c index 004a038a3a886..055e8837684c3 100644 --- a/lib/isc/unix/socket.c +++ b/lib/isc/unix/socket.c @@ -15,7 +15,7 @@ * PERFORMANCE OF THIS SOFTWARE. */ -/* $Id: socket.c,v 1.308.12.12 2010/01/31 23:47:31 tbox Exp $ */ +/* $Id: socket.c,v 1.308.12.17 2010-12-22 03:28:13 marka Exp $ */ /*! \file */ @@ -67,7 +67,11 @@ #include <sys/epoll.h> #endif #ifdef ISC_PLATFORM_HAVEDEVPOLL +#if defined(HAVE_SYS_DEVPOLL_H) #include <sys/devpoll.h> +#elif defined(HAVE_DEVPOLL_H) +#include <devpoll.h> +#endif #endif #include "errno2result.h" @@ -652,6 +656,7 @@ watch_fd(isc_socketmgr_t *manager, int fd, int msg) { event.events = EPOLLIN; else event.events = EPOLLOUT; + memset(&event.data, 0, sizeof(event.data)); event.data.fd = fd; if (epoll_ctl(manager->epoll_fd, EPOLL_CTL_ADD, fd, &event) == -1 && errno != EEXIST) { @@ -719,6 +724,7 @@ unwatch_fd(isc_socketmgr_t *manager, int fd, int msg) { event.events = EPOLLIN; else event.events = EPOLLOUT; + memset(&event.data, 0, sizeof(event.data)); event.data.fd = fd; if (epoll_ctl(manager->epoll_fd, EPOLL_CTL_DEL, fd, &event) == -1 && errno != ENOENT) { @@ -2232,6 +2238,26 @@ opensocket(isc_socketmgr_t *manager, isc_socket_t *sock) { (void *)&on, sizeof(on)); } #endif +#if defined(IPV6_MTU) + /* + * Use minimum MTU on IPv6 sockets. + */ + if (sock->pf == AF_INET6) { + int mtu = 1280; + (void)setsockopt(sock->fd, IPPROTO_IPV6, IPV6_MTU, + &mtu, sizeof(mtu)); + } +#endif +#if defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DONT) + /* + * Turn off Path MTU discovery on IPv6/UDP sockets. + */ + if (sock->pf == AF_INET6) { + int action = IPV6_PMTUDISC_DONT; + (void)setsockopt(sock->fd, IPPROTO_IPV6, IPV6_MTU_DISCOVER, + &action, sizeof(action)); + } +#endif #endif /* ISC_PLATFORM_HAVEIPV6 */ #endif /* defined(USE_CMSG) */ @@ -4712,9 +4738,16 @@ isc_socket_bind(isc_socket_t *sock, isc_sockaddr_t *sockaddr, return (ISC_R_SUCCESS); } +/* + * Enable this only for specific OS versions, and only when they have repaired + * their problems with it. Until then, this is is broken and needs to be + * diabled by default. See RT22589 for details. + */ +#undef ENABLE_ACCEPTFILTER + isc_result_t isc_socket_filter(isc_socket_t *sock, const char *filter) { -#ifdef SO_ACCEPTFILTER +#if defined(SO_ACCEPTFILTER) && defined(ENABLE_ACCEPTFILTER) char strbuf[ISC_STRERRORSIZE]; struct accept_filter_arg afa; #else @@ -4724,7 +4757,7 @@ isc_socket_filter(isc_socket_t *sock, const char *filter) { REQUIRE(VALID_SOCKET(sock)); -#ifdef SO_ACCEPTFILTER +#if defined(SO_ACCEPTFILTER) && defined(ENABLE_ACCEPTFILTER) bzero(&afa, sizeof(afa)); strncpy(afa.af_name, filter, sizeof(afa.af_name)); if (setsockopt(sock->fd, SOL_SOCKET, SO_ACCEPTFILTER, @@ -4829,6 +4862,12 @@ isc_socket_accept(isc_socket_t *sock, * Attach to socket and to task. */ isc_task_attach(task, &ntask); + if (isc_task_exiting(ntask)) { + isc_task_detach(&ntask); + isc_event_free(ISC_EVENT_PTR(&dev)); + UNLOCK(&sock->lock); + return (ISC_R_SHUTTINGDOWN); + } nsock->references++; nsock->statsindex = sock->statsindex; |