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| author | Jeff Trawick <trawick@apache.org> | 2004-03-19 11:16:03 +0000 |
|---|---|---|
| committer | Jeff Trawick <trawick@apache.org> | 2004-03-19 11:16:03 +0000 |
| commit | 4d8f4c26d62142dd48570038ab80d9e98f307a9b (patch) | |
| tree | 3325ee8042b40a431bcf67e66832a8888f870aa1 /configure.in | |
| parent | 77b387e14b4b75f6cf38750902530fcda85429d2 (diff) | |
| download | httpd-4d8f4c26d62142dd48570038ab80d9e98f307a9b.tar.gz | |
*) SECURITY: CAN-2004-0174 (cve.mitre.org)
Fix starvation issue on listening sockets where a short-lived
connection on a rarely-accessed listening socket will cause a
child to hold the accept mutex and block out new connections until
another connection arrives on that rarely-accessed listening socket.
With Apache 2.x there is no performance concern about enabling the
logic for platforms which don't need it, so it is enabled everywhere
except for Win32. [Jeff Trawick]
(already in 2.0.49, propagating to mirrors now)
git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@103029 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 5f393e1004..68bc23bb0e 100644 --- a/configure.in +++ b/configure.in @@ -235,6 +235,8 @@ case $host in ;; esac +APR_SETVAR(AP_NONBLOCK_WHEN_MULTI_LISTEN, [1]) + dnl dnl Process command line arguments. This is done early in the process so the dnl user can get feedback quickly in case of an error. @@ -486,6 +488,11 @@ if test "$SINGLE_LISTEN_UNSERIALIZED_ACCEPT" = "1"; then [This platform doesn't suffer from the thundering herd problem]) fi +if test "$AP_NONBLOCK_WHEN_MULTI_LISTEN" = "1"; then + AC_DEFINE(AP_NONBLOCK_WHEN_MULTI_LISTEN, 1, + [Listening sockets are non-blocking when there are more than 1]) +fi + AC_DEFINE_UNQUOTED(AP_SIG_GRACEFUL, SIG$AP_SIG_GRACEFUL, [Signal used to gracefully restart]) AC_DEFINE_UNQUOTED(AP_SIG_GRACEFUL_STRING, "SIG$AP_SIG_GRACEFUL", [Signal used to gracefully restart (as a quoted string)]) AC_DEFINE_UNQUOTED(AP_SIG_GRACEFUL_SHORT, $AP_SIG_GRACEFUL, [Signal used to gracefully restart (without SIG prefix)]) |