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path: root/fs/cifs/dfs_cache.c
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Diffstat (limited to 'fs/cifs/dfs_cache.c')
-rw-r--r--fs/cifs/dfs_cache.c74
1 files changed, 38 insertions, 36 deletions
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c
index 4950ab0486ae..b1fa30fefe1f 100644
--- a/fs/cifs/dfs_cache.c
+++ b/fs/cifs/dfs_cache.c
@@ -37,11 +37,12 @@ struct cache_dfs_tgt {
struct cache_entry {
struct hlist_node hlist;
const char *path;
- int ttl;
- int srvtype;
- int flags;
+ int hdr_flags; /* RESP_GET_DFS_REFERRAL.ReferralHeaderFlags */
+ int ttl; /* DFS_REREFERRAL_V3.TimeToLive */
+ int srvtype; /* DFS_REREFERRAL_V3.ServerType */
+ int ref_flags; /* DFS_REREFERRAL_V3.ReferralEntryFlags */
struct timespec64 etime;
- int path_consumed;
+ int path_consumed; /* RESP_GET_DFS_REFERRAL.PathConsumed */
int numtgts;
struct list_head tlist;
struct cache_dfs_tgt *tgthint;
@@ -80,23 +81,24 @@ static void refresh_cache_worker(struct work_struct *work);
static DECLARE_DELAYED_WORK(refresh_task, refresh_cache_worker);
-static int get_normalized_path(const char *path, char **npath)
+static int get_normalized_path(const char *path, const char **npath)
{
if (!path || strlen(path) < 3 || (*path != '\\' && *path != '/'))
return -EINVAL;
if (*path == '\\') {
- *npath = (char *)path;
+ *npath = path;
} else {
- *npath = kstrndup(path, strlen(path), GFP_KERNEL);
- if (!*npath)
+ char *s = kstrdup(path, GFP_KERNEL);
+ if (!s)
return -ENOMEM;
- convert_delimiter(*npath, '\\');
+ convert_delimiter(s, '\\');
+ *npath = s;
}
return 0;
}
-static inline void free_normalized_path(const char *path, char *npath)
+static inline void free_normalized_path(const char *path, const char *npath)
{
if (path != npath)
kfree(npath);
@@ -166,14 +168,11 @@ static int dfscache_proc_show(struct seq_file *m, void *v)
continue;
seq_printf(m,
- "cache entry: path=%s,type=%s,ttl=%d,etime=%ld,"
- "interlink=%s,path_consumed=%d,expired=%s\n",
- ce->path,
- ce->srvtype == DFS_TYPE_ROOT ? "root" : "link",
- ce->ttl, ce->etime.tv_nsec,
- IS_INTERLINK_SET(ce->flags) ? "yes" : "no",
- ce->path_consumed,
- cache_entry_expired(ce) ? "yes" : "no");
+ "cache entry: path=%s,type=%s,ttl=%d,etime=%ld,hdr_flags=0x%x,ref_flags=0x%x,interlink=%s,path_consumed=%d,expired=%s\n",
+ ce->path, ce->srvtype == DFS_TYPE_ROOT ? "root" : "link",
+ ce->ttl, ce->etime.tv_nsec, ce->ref_flags, ce->hdr_flags,
+ IS_INTERLINK_SET(ce->hdr_flags) ? "yes" : "no",
+ ce->path_consumed, cache_entry_expired(ce) ? "yes" : "no");
list_for_each_entry(t, &ce->tlist, list) {
seq_printf(m, " %s%s\n",
@@ -236,11 +235,12 @@ static inline void dump_tgts(const struct cache_entry *ce)
static inline void dump_ce(const struct cache_entry *ce)
{
- cifs_dbg(FYI, "cache entry: path=%s,type=%s,ttl=%d,etime=%ld,interlink=%s,path_consumed=%d,expired=%s\n",
+ cifs_dbg(FYI, "cache entry: path=%s,type=%s,ttl=%d,etime=%ld,hdr_flags=0x%x,ref_flags=0x%x,interlink=%s,path_consumed=%d,expired=%s\n",
ce->path,
ce->srvtype == DFS_TYPE_ROOT ? "root" : "link", ce->ttl,
ce->etime.tv_nsec,
- IS_INTERLINK_SET(ce->flags) ? "yes" : "no",
+ ce->hdr_flags, ce->ref_flags,
+ IS_INTERLINK_SET(ce->hdr_flags) ? "yes" : "no",
ce->path_consumed,
cache_entry_expired(ce) ? "yes" : "no");
dump_tgts(ce);
@@ -359,7 +359,7 @@ static struct cache_dfs_tgt *alloc_target(const char *name, int path_consumed)
t = kmalloc(sizeof(*t), GFP_ATOMIC);
if (!t)
return ERR_PTR(-ENOMEM);
- t->name = kstrndup(name, strlen(name), GFP_ATOMIC);
+ t->name = kstrdup(name, GFP_ATOMIC);
if (!t->name) {
kfree(t);
return ERR_PTR(-ENOMEM);
@@ -381,7 +381,8 @@ static int copy_ref_data(const struct dfs_info3_param *refs, int numrefs,
ce->ttl = refs[0].ttl;
ce->etime = get_expire_time(ce->ttl);
ce->srvtype = refs[0].server_type;
- ce->flags = refs[0].ref_flag;
+ ce->hdr_flags = refs[0].flags;
+ ce->ref_flags = refs[0].ref_flag;
ce->path_consumed = refs[0].path_consumed;
for (i = 0; i < numrefs; i++) {
@@ -419,7 +420,7 @@ static struct cache_entry *alloc_cache_entry(const char *path,
if (!ce)
return ERR_PTR(-ENOMEM);
- ce->path = kstrndup(path, strlen(path), GFP_KERNEL);
+ ce->path = kstrdup(path, GFP_KERNEL);
if (!ce->path) {
kmem_cache_free(cache_slab, ce);
return ERR_PTR(-ENOMEM);
@@ -531,7 +532,7 @@ static struct cache_entry *lookup_cache_entry(const char *path, unsigned int *ha
char *s, *e;
char sep;
- npath = kstrndup(path, strlen(path), GFP_KERNEL);
+ npath = kstrdup(path, GFP_KERNEL);
if (!npath)
return ERR_PTR(-ENOMEM);
@@ -641,7 +642,7 @@ static int __update_cache_entry(const char *path,
if (ce->tgthint) {
s = ce->tgthint->name;
- th = kstrndup(s, strlen(s), GFP_ATOMIC);
+ th = kstrdup(s, GFP_ATOMIC);
if (!th)
return -ENOMEM;
}
@@ -786,11 +787,11 @@ static int setup_referral(const char *path, struct cache_entry *ce,
memset(ref, 0, sizeof(*ref));
- ref->path_name = kstrndup(path, strlen(path), GFP_ATOMIC);
+ ref->path_name = kstrdup(path, GFP_ATOMIC);
if (!ref->path_name)
return -ENOMEM;
- ref->node_name = kstrndup(target, strlen(target), GFP_ATOMIC);
+ ref->node_name = kstrdup(target, GFP_ATOMIC);
if (!ref->node_name) {
rc = -ENOMEM;
goto err_free_path;
@@ -799,7 +800,8 @@ static int setup_referral(const char *path, struct cache_entry *ce,
ref->path_consumed = ce->path_consumed;
ref->ttl = ce->ttl;
ref->server_type = ce->srvtype;
- ref->ref_flag = ce->flags;
+ ref->ref_flag = ce->ref_flags;
+ ref->flags = ce->hdr_flags;
return 0;
@@ -827,7 +829,7 @@ static int get_targets(struct cache_entry *ce, struct dfs_cache_tgt_list *tl)
goto err_free_it;
}
- it->it_name = kstrndup(t->name, strlen(t->name), GFP_ATOMIC);
+ it->it_name = kstrdup(t->name, GFP_ATOMIC);
if (!it->it_name) {
kfree(it);
rc = -ENOMEM;
@@ -881,7 +883,7 @@ int dfs_cache_find(const unsigned int xid, struct cifs_ses *ses,
struct dfs_cache_tgt_list *tgt_list)
{
int rc;
- char *npath;
+ const char *npath;
struct cache_entry *ce;
rc = get_normalized_path(path, &npath);
@@ -935,7 +937,7 @@ int dfs_cache_noreq_find(const char *path, struct dfs_info3_param *ref,
struct dfs_cache_tgt_list *tgt_list)
{
int rc;
- char *npath;
+ const char *npath;
struct cache_entry *ce;
rc = get_normalized_path(path, &npath);
@@ -990,7 +992,7 @@ int dfs_cache_update_tgthint(const unsigned int xid, struct cifs_ses *ses,
const struct dfs_cache_tgt_iterator *it)
{
int rc;
- char *npath;
+ const char *npath;
struct cache_entry *ce;
struct cache_dfs_tgt *t;
@@ -1052,7 +1054,7 @@ int dfs_cache_noreq_update_tgthint(const char *path,
const struct dfs_cache_tgt_iterator *it)
{
int rc;
- char *npath;
+ const char *npath;
struct cache_entry *ce;
struct cache_dfs_tgt *t;
@@ -1110,7 +1112,7 @@ int dfs_cache_get_tgt_referral(const char *path,
struct dfs_info3_param *ref)
{
int rc;
- char *npath;
+ const char *npath;
struct cache_entry *ce;
if (!it || !ref)
@@ -1165,7 +1167,7 @@ int dfs_cache_add_vol(char *mntdata, struct smb3_fs_context *ctx, const char *fu
if (!vi)
return -ENOMEM;
- vi->fullpath = kstrndup(fullpath, strlen(fullpath), GFP_KERNEL);
+ vi->fullpath = kstrdup(fullpath, GFP_KERNEL);
if (!vi->fullpath) {
rc = -ENOMEM;
goto err_free_vi;
@@ -1483,7 +1485,7 @@ static int refresh_tcon(struct vol_info *vi, struct cifs_tcon *tcon)
{
int rc = 0;
unsigned int xid;
- char *path, *npath;
+ const char *path, *npath;
struct cache_entry *ce;
struct cifs_ses *root_ses = NULL, *ses;
struct dfs_info3_param *refs = NULL;
generated by cgit (git 2.34.1) at 2025-06-01 20:52:30 +0000