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Diffstat (limited to 'submodule-config.c')
-rw-r--r--submodule-config.c132
1 files changed, 78 insertions, 54 deletions
diff --git a/submodule-config.c b/submodule-config.c
index 2aa8a1747f..388ef1f892 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -9,7 +9,7 @@
/*
* submodule cache lookup structure
* There is one shared set of 'struct submodule' entries which can be
- * looked up by their sha1 blob id of the .gitmodule file and either
+ * looked up by their sha1 blob id of the .gitmodules file and either
* using path or name as key.
* for_path stores submodule entries with path as key
* for_name stores submodule entries with name as key
@@ -44,7 +44,7 @@ static int config_path_cmp(const void *unused_cmp_data,
const struct submodule_entry *b = entry_or_key;
return strcmp(a->config->path, b->config->path) ||
- hashcmp(a->config->gitmodules_sha1, b->config->gitmodules_sha1);
+ oidcmp(&a->config->gitmodules_oid, &b->config->gitmodules_oid);
}
static int config_name_cmp(const void *unused_cmp_data,
@@ -56,7 +56,7 @@ static int config_name_cmp(const void *unused_cmp_data,
const struct submodule_entry *b = entry_or_key;
return strcmp(a->config->name, b->config->name) ||
- hashcmp(a->config->gitmodules_sha1, b->config->gitmodules_sha1);
+ oidcmp(&a->config->gitmodules_oid, &b->config->gitmodules_oid);
}
static struct submodule_cache *submodule_cache_alloc(void)
@@ -91,7 +91,7 @@ static void submodule_cache_clear(struct submodule_cache *cache)
/*
* We iterate over the name hash here to be symmetric with the
* allocation of struct submodule entries. Each is allocated by
- * their .gitmodule blob sha1 and submodule name.
+ * their .gitmodules blob sha1 and submodule name.
*/
hashmap_iter_init(&cache->for_name, &iter);
while ((entry = hashmap_iter_next(&iter)))
@@ -109,17 +109,17 @@ void submodule_cache_free(struct submodule_cache *cache)
free(cache);
}
-static unsigned int hash_sha1_string(const unsigned char *sha1,
- const char *string)
+static unsigned int hash_oid_string(const struct object_id *oid,
+ const char *string)
{
- return memhash(sha1, 20) + strhash(string);
+ return memhash(oid->hash, the_hash_algo->rawsz) + strhash(string);
}
static void cache_put_path(struct submodule_cache *cache,
struct submodule *submodule)
{
- unsigned int hash = hash_sha1_string(submodule->gitmodules_sha1,
- submodule->path);
+ unsigned int hash = hash_oid_string(&submodule->gitmodules_oid,
+ submodule->path);
struct submodule_entry *e = xmalloc(sizeof(*e));
hashmap_entry_init(e, hash);
e->config = submodule;
@@ -129,8 +129,8 @@ static void cache_put_path(struct submodule_cache *cache,
static void cache_remove_path(struct submodule_cache *cache,
struct submodule *submodule)
{
- unsigned int hash = hash_sha1_string(submodule->gitmodules_sha1,
- submodule->path);
+ unsigned int hash = hash_oid_string(&submodule->gitmodules_oid,
+ submodule->path);
struct submodule_entry e;
struct submodule_entry *removed;
hashmap_entry_init(&e, hash);
@@ -142,8 +142,8 @@ static void cache_remove_path(struct submodule_cache *cache,
static void cache_add(struct submodule_cache *cache,
struct submodule *submodule)
{
- unsigned int hash = hash_sha1_string(submodule->gitmodules_sha1,
- submodule->name);
+ unsigned int hash = hash_oid_string(&submodule->gitmodules_oid,
+ submodule->name);
struct submodule_entry *e = xmalloc(sizeof(*e));
hashmap_entry_init(e, hash);
e->config = submodule;
@@ -151,14 +151,14 @@ static void cache_add(struct submodule_cache *cache,
}
static const struct submodule *cache_lookup_path(struct submodule_cache *cache,
- const unsigned char *gitmodules_sha1, const char *path)
+ const struct object_id *gitmodules_oid, const char *path)
{
struct submodule_entry *entry;
- unsigned int hash = hash_sha1_string(gitmodules_sha1, path);
+ unsigned int hash = hash_oid_string(gitmodules_oid, path);
struct submodule_entry key;
struct submodule key_config;
- hashcpy(key_config.gitmodules_sha1, gitmodules_sha1);
+ oidcpy(&key_config.gitmodules_oid, gitmodules_oid);
key_config.path = path;
hashmap_entry_init(&key, hash);
@@ -171,14 +171,14 @@ static const struct submodule *cache_lookup_path(struct submodule_cache *cache,
}
static struct submodule *cache_lookup_name(struct submodule_cache *cache,
- const unsigned char *gitmodules_sha1, const char *name)
+ const struct object_id *gitmodules_oid, const char *name)
{
struct submodule_entry *entry;
- unsigned int hash = hash_sha1_string(gitmodules_sha1, name);
+ unsigned int hash = hash_oid_string(gitmodules_oid, name);
struct submodule_entry key;
struct submodule key_config;
- hashcpy(key_config.gitmodules_sha1, gitmodules_sha1);
+ oidcpy(&key_config.gitmodules_oid, gitmodules_oid);
key_config.name = name;
hashmap_entry_init(&key, hash);
@@ -190,6 +190,31 @@ static struct submodule *cache_lookup_name(struct submodule_cache *cache,
return NULL;
}
+int check_submodule_name(const char *name)
+{
+ /* Disallow empty names */
+ if (!*name)
+ return -1;
+
+ /*
+ * Look for '..' as a path component. Check both '/' and '\\' as
+ * separators rather than is_dir_sep(), because we want the name rules
+ * to be consistent across platforms.
+ */
+ goto in_component; /* always start inside component */
+ while (*name) {
+ char c = *name++;
+ if (c == '/' || c == '\\') {
+in_component:
+ if (name[0] == '.' && name[1] == '.' &&
+ (!name[2] || name[2] == '/' || name[2] == '\\'))
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
static int name_and_item_from_var(const char *var, struct strbuf *name,
struct strbuf *item)
{
@@ -201,18 +226,24 @@ static int name_and_item_from_var(const char *var, struct strbuf *name,
return 0;
strbuf_add(name, subsection, subsection_len);
+ if (check_submodule_name(name->buf) < 0) {
+ warning(_("ignoring suspicious submodule name: %s"), name->buf);
+ strbuf_release(name);
+ return 0;
+ }
+
strbuf_addstr(item, key);
return 1;
}
static struct submodule *lookup_or_create_by_name(struct submodule_cache *cache,
- const unsigned char *gitmodules_sha1, const char *name)
+ const struct object_id *gitmodules_oid, const char *name)
{
struct submodule *submodule;
struct strbuf name_buf = STRBUF_INIT;
- submodule = cache_lookup_name(cache, gitmodules_sha1, name);
+ submodule = cache_lookup_name(cache, gitmodules_oid, name);
if (submodule)
return submodule;
@@ -230,7 +261,7 @@ static struct submodule *lookup_or_create_by_name(struct submodule_cache *cache,
submodule->branch = NULL;
submodule->recommend_shallow = -1;
- hashcpy(submodule->gitmodules_sha1, gitmodules_sha1);
+ oidcpy(&submodule->gitmodules_oid, gitmodules_oid);
cache_add(cache, submodule);
@@ -341,12 +372,12 @@ int parse_push_recurse_submodules_arg(const char *opt, const char *arg)
return parse_push_recurse(opt, arg, 1);
}
-static void warn_multiple_config(const unsigned char *treeish_name,
+static void warn_multiple_config(const struct object_id *treeish_name,
const char *name, const char *option)
{
const char *commit_string = "WORKTREE";
if (treeish_name)
- commit_string = sha1_to_hex(treeish_name);
+ commit_string = oid_to_hex(treeish_name);
warning("%s:.gitmodules, multiple configurations found for "
"'submodule.%s.%s'. Skipping second one!",
commit_string, name, option);
@@ -354,8 +385,8 @@ static void warn_multiple_config(const unsigned char *treeish_name,
struct parse_config_parameter {
struct submodule_cache *cache;
- const unsigned char *treeish_name;
- const unsigned char *gitmodules_sha1;
+ const struct object_id *treeish_name;
+ const struct object_id *gitmodules_oid;
int overwrite;
};
@@ -371,7 +402,7 @@ static int parse_config(const char *var, const char *value, void *data)
return 0;
submodule = lookup_or_create_by_name(me->cache,
- me->gitmodules_sha1,
+ me->gitmodules_oid,
name.buf);
if (!strcmp(item.buf, "path")) {
@@ -389,7 +420,7 @@ static int parse_config(const char *var, const char *value, void *data)
}
} else if (!strcmp(item.buf, "fetchrecursesubmodules")) {
/* when parsing worktree configurations we can die early */
- int die_on_error = is_null_sha1(me->gitmodules_sha1);
+ int die_on_error = is_null_oid(me->gitmodules_oid);
if (!me->overwrite &&
submodule->fetch_recurse != RECURSE_SUBMODULES_NONE)
warn_multiple_config(me->treeish_name, submodule->name,
@@ -511,23 +542,23 @@ static const struct submodule *config_from(struct submodule_cache *cache,
switch (lookup_type) {
case lookup_name:
- submodule = cache_lookup_name(cache, oid.hash, key);
+ submodule = cache_lookup_name(cache, &oid, key);
break;
case lookup_path:
- submodule = cache_lookup_path(cache, oid.hash, key);
+ submodule = cache_lookup_path(cache, &oid, key);
break;
}
if (submodule)
goto out;
- config = read_sha1_file(oid.hash, &type, &config_size);
+ config = read_object_file(&oid, &type, &config_size);
if (!config || type != OBJ_BLOB)
goto out;
/* fill the submodule config into the cache */
parameter.cache = cache;
- parameter.treeish_name = treeish_name->hash;
- parameter.gitmodules_sha1 = oid.hash;
+ parameter.treeish_name = treeish_name;
+ parameter.gitmodules_oid = &oid;
parameter.overwrite = 0;
git_config_from_mem(parse_config, CONFIG_ORIGIN_SUBMODULE_BLOB, rev.buf,
config, config_size, &parameter);
@@ -536,9 +567,9 @@ static const struct submodule *config_from(struct submodule_cache *cache,
switch (lookup_type) {
case lookup_name:
- return cache_lookup_name(cache, oid.hash, key);
+ return cache_lookup_name(cache, &oid, key);
case lookup_path:
- return cache_lookup_path(cache, oid.hash, key);
+ return cache_lookup_path(cache, &oid, key);
default:
return NULL;
}
@@ -567,7 +598,7 @@ static int gitmodules_cb(const char *var, const char *value, void *data)
parameter.cache = repo->submodule_cache;
parameter.treeish_name = NULL;
- parameter.gitmodules_sha1 = null_sha1;
+ parameter.gitmodules_oid = &null_oid;
parameter.overwrite = 1;
return parse_config(var, value, &parameter);
@@ -619,31 +650,24 @@ static void gitmodules_read_check(struct repository *repo)
repo_read_gitmodules(repo);
}
-const struct submodule *submodule_from_name(const struct object_id *treeish_name,
+const struct submodule *submodule_from_name(struct repository *r,
+ const struct object_id *treeish_name,
const char *name)
{
- gitmodules_read_check(the_repository);
- return config_from(the_repository->submodule_cache, treeish_name, name, lookup_name);
+ gitmodules_read_check(r);
+ return config_from(r->submodule_cache, treeish_name, name, lookup_name);
}
-const struct submodule *submodule_from_path(const struct object_id *treeish_name,
+const struct submodule *submodule_from_path(struct repository *r,
+ const struct object_id *treeish_name,
const char *path)
{
- gitmodules_read_check(the_repository);
- return config_from(the_repository->submodule_cache, treeish_name, path, lookup_path);
-}
-
-const struct submodule *submodule_from_cache(struct repository *repo,
- const struct object_id *treeish_name,
- const char *key)
-{
- gitmodules_read_check(repo);
- return config_from(repo->submodule_cache, treeish_name,
- key, lookup_path);
+ gitmodules_read_check(r);
+ return config_from(r->submodule_cache, treeish_name, path, lookup_path);
}
-void submodule_free(void)
+void submodule_free(struct repository *r)
{
- if (the_repository->submodule_cache)
- submodule_cache_clear(the_repository->submodule_cache);
+ if (r->submodule_cache)
+ submodule_cache_clear(r->submodule_cache);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 11:45:21 +0000