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autofs-5.1.7 - add tree_mapent_add_node()
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From: Ian Kent <raven@themaw.net>
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Add function tree_mapent_add_node() to the mapent tree handling
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implementation.
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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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include/automount.h | 1 +
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include/mounts.h | 1 +
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lib/cache.c | 5 ++---
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lib/mounts.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
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5 files changed, 52 insertions(+), 3 deletions(-)
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--- autofs-5.1.4.orig/CHANGELOG
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+++ autofs-5.1.4/CHANGELOG
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@@ -33,6 +33,7 @@
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- add a len field to struct autofs_point.
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- make tree implementation data independent.
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- add mapent tree implementation.
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+- add tree_mapent_add_node().
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xx/xx/2018 autofs-5.1.5
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- fix flag file permission.
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--- autofs-5.1.4.orig/include/automount.h
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+++ autofs-5.1.4/include/automount.h
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@@ -215,6 +215,7 @@ struct mapent *cache_partial_match_wild(
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int cache_add(struct mapent_cache *mc, struct map_source *ms, const char *key, const char *mapent, time_t age);
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int cache_update_offset(struct mapent_cache *mc, const char *mkey, const char *key, const char *mapent, time_t age);
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void cache_update_negative(struct mapent_cache *mc, struct map_source *ms, const char *key, time_t timeout);
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+struct mapent *cache_get_offset_parent(struct mapent_cache *mc, const char *key);
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int cache_set_offset_parent(struct mapent_cache *mc, const char *offset);
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int cache_update(struct mapent_cache *mc, struct map_source *ms, const char *key, const char *mapent, time_t age);
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int cache_delete(struct mapent_cache *mc, const char *key);
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--- autofs-5.1.4.orig/include/mounts.h
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+++ autofs-5.1.4/include/mounts.h
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@@ -169,6 +169,7 @@ void mnts_get_expire_list(struct list_he
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void mnts_put_expire_list(struct list_head *mnts);
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void mnts_set_mounted_mount(struct autofs_point *ap, const char *name, unsigned int flags);
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struct tree_node *tree_mapent_root(struct mapent *me);
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+int tree_mapent_add_node(struct mapent_cache *mc, const char *base, const char *key);
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int unlink_mount_tree(struct autofs_point *ap, const char *mp);
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void free_mnt_list(struct mnt_list *list);
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int is_mounted(const char *mp, unsigned int type);
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--- autofs-5.1.4.orig/lib/cache.c
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+++ autofs-5.1.4/lib/cache.c
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@@ -719,8 +719,7 @@ void cache_update_negative(struct mapent
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}
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-static struct mapent *get_offset_parent(struct mapent_cache *mc,
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- const char *key)
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+struct mapent *cache_get_offset_parent(struct mapent_cache *mc, const char *key)
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{
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struct mapent *me;
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char *parent, *tail;
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@@ -766,7 +765,7 @@ int cache_set_offset_parent(struct mapen
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if (!IS_MM(this))
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return 0;
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- parent = get_offset_parent(mc, offset);
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+ parent = cache_get_offset_parent(mc, offset);
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if (parent)
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this->parent = parent;
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else
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--- autofs-5.1.4.orig/lib/mounts.c
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+++ autofs-5.1.4/lib/mounts.c
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@@ -1481,6 +1481,53 @@ static void tree_mapent_free(struct tree
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n->right = NULL;
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}
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+int tree_mapent_add_node(struct mapent_cache *mc,
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+ const char *root, const char *key)
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+{
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+ unsigned int logopt = mc->ap->logopt;
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+ struct tree_node *tree, *n;
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+ struct mapent *base;
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+ struct mapent *parent;
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+ struct mapent *me;
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+
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+ base = cache_lookup_distinct(mc, root);
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+ if (!base) {
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+ error(logopt,
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+ "failed to find multi-mount root for key %s", key);
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+ return 0;
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+ }
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+
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+ if (MAPENT_ROOT(base) != MAPENT_NODE(base)) {
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+ error(logopt,
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+ "failed to find multi-mount root of offset tree",
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+ key);
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+ return 0;
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+ }
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+ tree = MAPENT_ROOT(base);
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+
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+ me = cache_lookup_distinct(mc, key);
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+ if (!me) {
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+ error(logopt,
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+ "failed to find key %s of multi-mount", key);
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+ return 0;
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+ }
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+
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+ n = tree_add_node(tree, me);
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+ if (!n)
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+ return 0;
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+
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+ MAPENT_SET_ROOT(me, tree)
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+
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+ /* Set the subtree parent */
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+ parent = cache_get_offset_parent(mc, key);
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+ if (!parent)
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+ MAPENT_SET_PARENT(me, tree)
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+ else
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+ MAPENT_SET_PARENT(me, MAPENT_NODE(parent))
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+
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+ return 1;
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+}
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+
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/* From glibc decode_name() */
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/* Since the values in a line are separated by spaces, a name cannot
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* contain a space. Therefore some programs encode spaces in names
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