s3: Add extid to the dev/inode pair

This extends the file_id struct to add an additional generic uint64_t
field: extid.  For backwards compatibility with dev/inodes stored in
xattr_tdbs and acl_tdbs, the ext id is ignored for these databases.
This patch should cause no functional change on systems that don't use
SMB_VFS_FILE_ID_CREATE to set the extid.

Existing code that uses the smb_share_mode library will need to be
updated to be compatibile with the new extid.

1 files changed, 9 insertions, 2 deletions

diff --git a/source3/include/smb_share_modes.h b/source3/include/smb_share_modes.h
index 101bec8245..4a2d832cc2 100644
--- a/source3/include/smb_share_modes.h
+++ b/source3/include/smb_share_modes.h
@@ -46,6 +46,7 @@ struct smbdb_ctx;
 struct smb_share_mode_entry {
 	uint64_t dev;
 	uint64_t ino;
+	uint64_t extid;
 	uint32_t share_access;
 	uint32_t access_mask;
 	struct timeval open_time;
@@ -66,11 +67,13 @@ int smb_share_mode_db_close(struct smbdb_ctx *db_ctx);
 
 int smb_lock_share_mode_entry(struct smbdb_ctx *db_ctx,
 				uint64_t dev,
-				uint64_t ino);
+				uint64_t ino,
+				uint64_t extid);
 
 int smb_unlock_share_mode_entry(struct smbdb_ctx *db_ctx,
 				uint64_t dev,
-				uint64_t ino);
+				uint64_t ino,
+				uint64_t extid);
 
 /*
  * Share mode database accessor functions.
@@ -79,23 +82,27 @@ int smb_unlock_share_mode_entry(struct smbdb_ctx *db_ctx,
 int smb_get_share_mode_entries(struct smbdb_ctx *db_ctx,
 				uint64_t dev,
 				uint64_t ino,
+				uint64_t extid,
 				struct smb_share_mode_entry **pp_list,
 				unsigned char *p_delete_on_close);
 
 int smb_create_share_mode_entry(struct smbdb_ctx *db_ctx,
 				uint64_t dev,
 				uint64_t ino,
+				uint64_t extid,
 				const struct smb_share_mode_entry *set_entry,
 				const char *path);
 
 int smb_delete_share_mode_entry(struct smbdb_ctx *db_ctx,
 				uint64_t dev,
 				uint64_t ino,
+				uint64_t extid,
 				const struct smb_share_mode_entry *set_entry);
 
 int smb_change_share_mode_entry(struct smbdb_ctx *db_ctx,
 				uint64_t dev,
 				uint64_t ino,
+				uint64_t extid,
 				const struct smb_share_mode_entry *set_entry,
 				const struct smb_share_mode_entry *new_entry);