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74 lines
2.1 KiB
74 lines
2.1 KiB
7 years ago
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autofs-5.1.1 - change lookup to use reinit instead of reopen
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From: Ian Kent <raven@themaw.net>
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When a HUP signal is received lookup module are cloed and then re-opened.
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This can occassionally cause a problem with library data segemets and
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lead to a SEGV.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1 +
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daemon/lookup.c | 32 +++++++++++++++++++++-----------
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2 files changed, 22 insertions(+), 11 deletions(-)
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--- autofs-5.0.7.orig/CHANGELOG
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+++ autofs-5.0.7/CHANGELOG
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@@ -195,6 +195,7 @@
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- fix gcc5 complaints.
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- fix missing source sss in multi map lookup.
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- fix update_hosts_mounts() return.
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+- change lookup to use reinit instead of reopen.
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25/07/2012 autofs-5.0.7
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=======================
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--- autofs-5.0.7.orig/daemon/lookup.c
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+++ autofs-5.0.7/daemon/lookup.c
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@@ -300,17 +300,27 @@ static int do_read_map(struct autofs_poi
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struct lookup_mod *lookup;
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int status;
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- status = open_lookup(map->type, "", map->format,
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- map->argc, map->argv, &lookup);
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- if (status != NSS_STATUS_SUCCESS) {
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- debug(ap->logopt, "lookup module %s failed", map->type);
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- return status;
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- }
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-
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+ lookup = NULL;
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master_source_writelock(ap->entry);
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- if (map->lookup)
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- close_lookup(map->lookup);
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- map->lookup = lookup;
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+ if (!map->lookup) {
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+ status = open_lookup(map->type, "", map->format,
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+ map->argc, map->argv, &lookup);
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+ if (status != NSS_STATUS_SUCCESS) {
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+ master_source_unlock(ap->entry);
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+ debug(ap->logopt,
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+ "lookup module %s open failed", map->type);
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+ return status;
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+ }
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+ map->lookup = lookup;
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+ } else {
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+ lookup = map->lookup;
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+ status = lookup->lookup_reinit(map->format,
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+ map->argc, map->argv,
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+ &lookup->context);
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+ if (status)
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+ warn(ap->logopt,
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+ "lookup module %s reinit failed", map->type);
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+ }
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master_source_unlock(ap->entry);
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if (!map->stale)
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@@ -742,7 +752,7 @@ int do_lookup_mount(struct autofs_point
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map->format, map->argc, map->argv, &lookup);
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if (status != NSS_STATUS_SUCCESS) {
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debug(ap->logopt,
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- "lookup module %s failed", map->type);
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+ "lookup module %s open failed", map->type);
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return status;
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}
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map->lookup = lookup;
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