autofs/SOURCES/autofs-5.1.7-add-tree_mapent_add_node.patch

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2021-10-06 12:12:43 +00:00
autofs-5.1.7 - add tree_mapent_add_node()
From: Ian Kent <raven@themaw.net>
Add function tree_mapent_add_node() to the mapent tree handling
implementation.
Signed-off-by: Ian Kent <raven@themaw.net>
---
CHANGELOG | 1 +
include/automount.h | 1 +
include/mounts.h | 1 +
lib/cache.c | 5 ++---
lib/mounts.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 52 insertions(+), 3 deletions(-)
--- autofs-5.1.4.orig/CHANGELOG
+++ autofs-5.1.4/CHANGELOG
@@ -33,6 +33,7 @@
- add a len field to struct autofs_point.
- make tree implementation data independent.
- add mapent tree implementation.
+- add tree_mapent_add_node().
xx/xx/2018 autofs-5.1.5
- fix flag file permission.
--- autofs-5.1.4.orig/include/automount.h
+++ autofs-5.1.4/include/automount.h
@@ -215,6 +215,7 @@ struct mapent *cache_partial_match_wild(
int cache_add(struct mapent_cache *mc, struct map_source *ms, const char *key, const char *mapent, time_t age);
int cache_update_offset(struct mapent_cache *mc, const char *mkey, const char *key, const char *mapent, time_t age);
void cache_update_negative(struct mapent_cache *mc, struct map_source *ms, const char *key, time_t timeout);
+struct mapent *cache_get_offset_parent(struct mapent_cache *mc, const char *key);
int cache_set_offset_parent(struct mapent_cache *mc, const char *offset);
int cache_update(struct mapent_cache *mc, struct map_source *ms, const char *key, const char *mapent, time_t age);
int cache_delete(struct mapent_cache *mc, const char *key);
--- autofs-5.1.4.orig/include/mounts.h
+++ autofs-5.1.4/include/mounts.h
@@ -169,6 +169,7 @@ void mnts_get_expire_list(struct list_he
void mnts_put_expire_list(struct list_head *mnts);
void mnts_set_mounted_mount(struct autofs_point *ap, const char *name, unsigned int flags);
struct tree_node *tree_mapent_root(struct mapent *me);
+int tree_mapent_add_node(struct mapent_cache *mc, const char *base, const char *key);
int unlink_mount_tree(struct autofs_point *ap, const char *mp);
void free_mnt_list(struct mnt_list *list);
int is_mounted(const char *mp, unsigned int type);
--- autofs-5.1.4.orig/lib/cache.c
+++ autofs-5.1.4/lib/cache.c
@@ -719,8 +719,7 @@ void cache_update_negative(struct mapent
}
-static struct mapent *get_offset_parent(struct mapent_cache *mc,
- const char *key)
+struct mapent *cache_get_offset_parent(struct mapent_cache *mc, const char *key)
{
struct mapent *me;
char *parent, *tail;
@@ -766,7 +765,7 @@ int cache_set_offset_parent(struct mapen
if (!IS_MM(this))
return 0;
- parent = get_offset_parent(mc, offset);
+ parent = cache_get_offset_parent(mc, offset);
if (parent)
this->parent = parent;
else
--- autofs-5.1.4.orig/lib/mounts.c
+++ autofs-5.1.4/lib/mounts.c
@@ -1481,6 +1481,53 @@ static void tree_mapent_free(struct tree
n->right = NULL;
}
+int tree_mapent_add_node(struct mapent_cache *mc,
+ const char *root, const char *key)
+{
+ unsigned int logopt = mc->ap->logopt;
+ struct tree_node *tree, *n;
+ struct mapent *base;
+ struct mapent *parent;
+ struct mapent *me;
+
+ base = cache_lookup_distinct(mc, root);
+ if (!base) {
+ error(logopt,
+ "failed to find multi-mount root for key %s", key);
+ return 0;
+ }
+
+ if (MAPENT_ROOT(base) != MAPENT_NODE(base)) {
+ error(logopt,
+ "failed to find multi-mount root of offset tree",
+ key);
+ return 0;
+ }
+ tree = MAPENT_ROOT(base);
+
+ me = cache_lookup_distinct(mc, key);
+ if (!me) {
+ error(logopt,
+ "failed to find key %s of multi-mount", key);
+ return 0;
+ }
+
+ n = tree_add_node(tree, me);
+ if (!n)
+ return 0;
+
+ MAPENT_SET_ROOT(me, tree)
+
+ /* Set the subtree parent */
+ parent = cache_get_offset_parent(mc, key);
+ if (!parent)
+ MAPENT_SET_PARENT(me, tree)
+ else
+ MAPENT_SET_PARENT(me, MAPENT_NODE(parent))
+
+ return 1;
+}
+
/* From glibc decode_name() */
/* Since the values in a line are separated by spaces, a name cannot
* contain a space. Therefore some programs encode spaces in names