Marius Tomaschewski
d059c507b7
and enabled Restart=on-abort (fate#315133). - Update to ISC dhcp-4.2.6 release. See RELNOTES file for the complete list of changes -- digest of fixes not in dhcp-4.2.5: - Tidy up receive packet processing. Thanks to Brad Plank of GTA for reporting the issue and suggesting a possible patch. [ISC-Bugs #34447] - Fix the socket handling for DHCPv6 clients to allow multiple instances of a client on a single machine to work properly. Previously only one client would receive the packets. Thanks to Jiri Popelka at Red Hat for the bug report and a potential patch. [ISC-Bugs #34784] - Added support for gentle shutdown after signal is received. [ISC-Bugs #32692] [ISC-Bugs 34945] - Enhance the DHCPv6 server logging to include the addresses that are assigned to the clients. This can be enabled by defining LOG_V6_ADDRESSES in site.h. [ISC-Bugs #26377] - Fix an operation in the DDNS code to be a bitwise instead of logical or. [ISC-Bugs #35138] - Merged patches for dhcp-4.2.6 version to apply without fuzzy, prepended patch number prefixes to match spec file patch nr, added patch markup tags / bug numbers to the spec file. - Applied contrib-lease-path pach to contrib.tar.gz [- contrib-lease-path.diff] - Changed to require automake and use its config.sub and guess files instead of maintaining a patch. [- config-guess-sub-update.patch] - Enabled to log DHCPv6 addresses assigned by server to clients [+ 0016-server-log-DHCPv6-addresses-assigned-to-clients.patch] - Cleaned up documentation, rpmlint adjustments. OBS-URL: https://build.opensuse.org/package/show/network:dhcp/dhcp?expand=0&rev=121
71 lines
1.8 KiB
Diff
71 lines
1.8 KiB
Diff
From d9b443ef38da92bd325f5118a2a6ddc21fae098e Mon Sep 17 00:00:00 2001
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From: Marius Tomaschewski <mt@suse.de>
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Date: Thu, 20 Dec 2012 10:25:53 +0100
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Subject: [PATCH] Ignore SIGPIPE to not die in socket code
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Installed SIG_IGN handler for SIGPIPE to not die before
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the errno==EPIPE checks in the socket code are reached.
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Unlike isc_app_start(), the isc_app_ctxstart() used by
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dhcp, does not set any signal handlers.
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Reported upstream as [ISC-Bugs #32222], IMO regression
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to [ISC-Bugs #22269] as the SO_NOSIGPIPE socket option
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isn't available e.g. on Linux.
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---
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omapip/isclib.c | 32 +++++++++++++++++++++++++++++++-
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1 file changed, 31 insertions(+), 1 deletion(-)
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diff --git a/omapip/isclib.c b/omapip/isclib.c
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index afab262..9b7ff5f 100644
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--- a/omapip/isclib.c
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+++ b/omapip/isclib.c
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@@ -69,6 +69,23 @@ isclib_cleanup(void)
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return;
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}
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+static isc_result_t
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+handle_signal(int sig, void (*handler)(int)) {
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+ struct sigaction sa;
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+
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+ memset(&sa, 0, sizeof(sa));
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+ sa.sa_handler = handler;
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+
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+ if (sigfillset(&sa.sa_mask) != 0 ||
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+ sigaction(sig, &sa, NULL) < 0) {
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+ log_error("handle_signal() %d setup: %s",
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+ sig, strerror(errno));
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+ return (ISC_R_UNEXPECTED);
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+ }
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+
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+ return (ISC_R_SUCCESS);
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+}
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+
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isc_result_t
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dhcp_context_create(void) {
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isc_result_t result;
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@@ -106,7 +123,20 @@ dhcp_context_create(void) {
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result = isc_app_ctxstart(dhcp_gbl_ctx.actx);
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if (result != ISC_R_SUCCESS)
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- return (result);
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+ goto cleanup;
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+
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+ /*
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+ * Always ignore SIGPIPE.
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+ * Otherwise we will die before the errno == EPIPE
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+ * checks in the socket code are reached.
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+ *
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+ * Note: unlike isc_app_start(), isc_app_ctxstart()
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+ * does not set any signal handlers.
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+ */
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+ result = handle_signal(SIGPIPE, SIG_IGN);
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+ if (result != ISC_R_SUCCESS)
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+ goto cleanup;
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+
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dhcp_gbl_ctx.actx_started = ISC_TRUE;
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result = isc_taskmgr_createinctx(dhcp_gbl_ctx.mctx,
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--
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1.8.4
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