diff options
Diffstat (limited to 'security/tomoyo/file.c')
| -rw-r--r-- | security/tomoyo/file.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c index 6ab9e4cdd61f..31a9a4ab7af9 100644 --- a/security/tomoyo/file.c +++ b/security/tomoyo/file.c @@ -667,6 +667,9 @@ int tomoyo_path_number_perm(const u8 type, struct path *path, unsigned long number) { struct tomoyo_request_info r; + struct tomoyo_obj_info obj = { + .path1 = *path, + }; int error = -ENOMEM; struct tomoyo_path_info buf; int idx; @@ -677,6 +680,7 @@ int tomoyo_path_number_perm(const u8 type, struct path *path, idx = tomoyo_read_lock(); if (!tomoyo_get_realpath(&buf, path)) goto out; + r.obj = &obj; if (type == TOMOYO_TYPE_MKDIR) tomoyo_add_slash(&buf); r.param_type = TOMOYO_TYPE_PATH_NUMBER_ACL; @@ -711,6 +715,9 @@ int tomoyo_check_open_permission(struct tomoyo_domain_info *domain, int error = 0; struct tomoyo_path_info buf; struct tomoyo_request_info r; + struct tomoyo_obj_info obj = { + .path1 = *path, + }; int idx; buf.name = NULL; @@ -723,6 +730,7 @@ int tomoyo_check_open_permission(struct tomoyo_domain_info *domain, error = -ENOMEM; goto out; } + r.obj = &obj; if (acc_mode & MAY_READ) error = tomoyo_path_permission(&r, TOMOYO_TYPE_READ, &buf); @@ -745,15 +753,21 @@ int tomoyo_check_open_permission(struct tomoyo_domain_info *domain, * * @operation: Type of operation. * @path: Pointer to "struct path". + * @target: Symlink's target if @operation is TOMOYO_TYPE_SYMLINK, + * NULL otherwise. * * Returns 0 on success, negative value otherwise. */ -int tomoyo_path_perm(const u8 operation, struct path *path) +int tomoyo_path_perm(const u8 operation, struct path *path, const char *target) { struct tomoyo_request_info r; + struct tomoyo_obj_info obj = { + .path1 = *path, + }; int error; struct tomoyo_path_info buf; bool is_enforce; + struct tomoyo_path_info symlink_target; int idx; if (tomoyo_init_request_info(&r, NULL, tomoyo_p2mac[operation]) @@ -765,13 +779,23 @@ int tomoyo_path_perm(const u8 operation, struct path *path) idx = tomoyo_read_lock(); if (!tomoyo_get_realpath(&buf, path)) goto out; + r.obj = &obj; switch (operation) { case TOMOYO_TYPE_RMDIR: case TOMOYO_TYPE_CHROOT: tomoyo_add_slash(&buf); break; + case TOMOYO_TYPE_SYMLINK: + symlink_target.name = tomoyo_encode(target); + if (!symlink_target.name) + goto out; + tomoyo_fill_path_info(&symlink_target); + obj.symlink_target = &symlink_target; + break; } error = tomoyo_path_permission(&r, operation, &buf); + if (operation == TOMOYO_TYPE_SYMLINK) + kfree(symlink_target.name); out: kfree(buf.name); tomoyo_read_unlock(idx); @@ -794,6 +818,9 @@ int tomoyo_mkdev_perm(const u8 operation, struct path *path, const unsigned int mode, unsigned int dev) { struct tomoyo_request_info r; + struct tomoyo_obj_info obj = { + .path1 = *path, + }; int error = -ENOMEM; struct tomoyo_path_info buf; int idx; @@ -804,6 +831,7 @@ int tomoyo_mkdev_perm(const u8 operation, struct path *path, idx = tomoyo_read_lock(); error = -ENOMEM; if (tomoyo_get_realpath(&buf, path)) { + r.obj = &obj; dev = new_decode_dev(dev); r.param_type = TOMOYO_TYPE_MKDEV_ACL; r.param.mkdev.filename = &buf; @@ -837,6 +865,10 @@ int tomoyo_path2_perm(const u8 operation, struct path *path1, struct tomoyo_path_info buf1; struct tomoyo_path_info buf2; struct tomoyo_request_info r; + struct tomoyo_obj_info obj = { + .path1 = *path1, + .path2 = *path2, + }; int idx; if (tomoyo_init_request_info(&r, NULL, tomoyo_pp2mac[operation]) @@ -861,6 +893,7 @@ int tomoyo_path2_perm(const u8 operation, struct path *path1, tomoyo_add_slash(&buf2); break; } + r.obj = &obj; r.param_type = TOMOYO_TYPE_PATH2_ACL; r.param.path2.operation = operation; r.param.path2.filename1 = &buf1; |