diff options
Diffstat (limited to 'security/tomoyo')
| -rw-r--r-- | security/tomoyo/common.h | 14 | ||||
| -rw-r--r-- | security/tomoyo/domain.c | 15 | ||||
| -rw-r--r-- | security/tomoyo/file.c | 26 | ||||
| -rw-r--r-- | security/tomoyo/group.c | 14 | ||||
| -rw-r--r-- | security/tomoyo/mount.c | 2 |
5 files changed, 48 insertions, 23 deletions
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h index 2ffad6138555..04454cb7b24a 100644 --- a/security/tomoyo/common.h +++ b/security/tomoyo/common.h @@ -246,6 +246,8 @@ struct tomoyo_request_info { union { struct { const struct tomoyo_path_info *filename; + /* For using wildcards at tomoyo_find_next_domain(). */ + const struct tomoyo_path_info *matched_path; u8 operation; } path; struct { @@ -718,8 +720,9 @@ bool tomoyo_domain_quota_is_ok(struct tomoyo_request_info *r); /* Print out of memory warning message. */ void tomoyo_warn_oom(const char *function); /* Check whether the given name matches the given name_union. */ -bool tomoyo_compare_name_union(const struct tomoyo_path_info *name, - const struct tomoyo_name_union *ptr); +const struct tomoyo_path_info * +tomoyo_compare_name_union(const struct tomoyo_path_info *name, + const struct tomoyo_name_union *ptr); /* Check whether the given number matches the given number_union. */ bool tomoyo_compare_number_union(const unsigned long value, const struct tomoyo_number_union *ptr); @@ -736,8 +739,9 @@ bool tomoyo_domain_def(const unsigned char *buffer); bool tomoyo_parse_name_union(const char *filename, struct tomoyo_name_union *ptr); /* Check whether the given filename matches the given path_group. */ -bool tomoyo_path_matches_group(const struct tomoyo_path_info *pathname, - const struct tomoyo_group *group); +const struct tomoyo_path_info * +tomoyo_path_matches_group(const struct tomoyo_path_info *pathname, + const struct tomoyo_group *group); /* Check whether the given value matches the given number_group. */ bool tomoyo_number_matches_group(const unsigned long min, const unsigned long max, @@ -879,7 +883,7 @@ int tomoyo_update_policy(struct tomoyo_acl_head *new_entry, const int size, const struct tomoyo_acl_head *)); void tomoyo_check_acl(struct tomoyo_request_info *r, - bool (*check_entry) (const struct tomoyo_request_info *, + bool (*check_entry) (struct tomoyo_request_info *, const struct tomoyo_acl_info *)); /********** External variable definitions. **********/ diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c index 4e0101b0041a..35388408e475 100644 --- a/security/tomoyo/domain.c +++ b/security/tomoyo/domain.c @@ -110,7 +110,7 @@ int tomoyo_update_domain(struct tomoyo_acl_info *new_entry, const int size, } void tomoyo_check_acl(struct tomoyo_request_info *r, - bool (*check_entry) (const struct tomoyo_request_info *, + bool (*check_entry) (struct tomoyo_request_info *, const struct tomoyo_acl_info *)) { const struct tomoyo_domain_info *domain = r->domain; @@ -465,6 +465,19 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm) goto retry; if (retval < 0) goto out; + /* + * To be able to specify domainnames with wildcards, use the + * pathname specified in the policy (which may contain + * wildcard) rather than the pathname passed to execve() + * (which never contains wildcard). + */ + if (r.param.path.matched_path) { + if (need_kfree) + kfree(rn.name); + need_kfree = false; + /* This is OK because it is read only. */ + rn = *r.param.path.matched_path; + } /* Calculate domain to transit to. */ switch (tomoyo_transition_type(old_domain->domainname, &rn)) { diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c index f7877fa80f14..9d32f182301e 100644 --- a/security/tomoyo/file.c +++ b/security/tomoyo/file.c @@ -95,12 +95,15 @@ void tomoyo_put_name_union(struct tomoyo_name_union *ptr) tomoyo_put_name(ptr->filename); } -bool tomoyo_compare_name_union(const struct tomoyo_path_info *name, - const struct tomoyo_name_union *ptr) +const struct tomoyo_path_info * +tomoyo_compare_name_union(const struct tomoyo_path_info *name, + const struct tomoyo_name_union *ptr) { if (ptr->is_group) return tomoyo_path_matches_group(name, ptr->group); - return tomoyo_path_matches_pattern(name, ptr->filename); + if (tomoyo_path_matches_pattern(name, ptr->filename)) + return ptr->filename; + return NULL; } void tomoyo_put_number_union(struct tomoyo_number_union *ptr) @@ -504,16 +507,21 @@ int tomoyo_write_no_rewrite(char *data, const bool is_delete) return tomoyo_update_no_rewrite_entry(data, is_delete); } -static bool tomoyo_check_path_acl(const struct tomoyo_request_info *r, +static bool tomoyo_check_path_acl(struct tomoyo_request_info *r, const struct tomoyo_acl_info *ptr) { const struct tomoyo_path_acl *acl = container_of(ptr, typeof(*acl), head); - return (acl->perm & (1 << r->param.path.operation)) && - tomoyo_compare_name_union(r->param.path.filename, &acl->name); + if (acl->perm & (1 << r->param.path.operation)) { + r->param.path.matched_path = + tomoyo_compare_name_union(r->param.path.filename, + &acl->name); + return r->param.path.matched_path != NULL; + } + return false; } -static bool tomoyo_check_path_number_acl(const struct tomoyo_request_info *r, +static bool tomoyo_check_path_number_acl(struct tomoyo_request_info *r, const struct tomoyo_acl_info *ptr) { const struct tomoyo_path_number_acl *acl = @@ -525,7 +533,7 @@ static bool tomoyo_check_path_number_acl(const struct tomoyo_request_info *r, &acl->name); } -static bool tomoyo_check_path2_acl(const struct tomoyo_request_info *r, +static bool tomoyo_check_path2_acl(struct tomoyo_request_info *r, const struct tomoyo_acl_info *ptr) { const struct tomoyo_path2_acl *acl = @@ -536,7 +544,7 @@ static bool tomoyo_check_path2_acl(const struct tomoyo_request_info *r, &acl->name2); } -static bool tomoyo_check_mkdev_acl(const struct tomoyo_request_info *r, +static bool tomoyo_check_mkdev_acl(struct tomoyo_request_info *r, const struct tomoyo_acl_info *ptr) { const struct tomoyo_mkdev_acl *acl = diff --git a/security/tomoyo/group.c b/security/tomoyo/group.c index 3f0a2abf65cc..e94352ce723f 100644 --- a/security/tomoyo/group.c +++ b/security/tomoyo/group.c @@ -80,24 +80,24 @@ int tomoyo_write_group(char *data, const bool is_delete, const u8 type) * @pathname: The name of pathname. * @group: Pointer to "struct tomoyo_path_group". * - * Returns true if @pathname matches pathnames in @group, false otherwise. + * Returns matched member's pathname if @pathname matches pathnames in @group, + * NULL otherwise. * * Caller holds tomoyo_read_lock(). */ -bool tomoyo_path_matches_group(const struct tomoyo_path_info *pathname, - const struct tomoyo_group *group) +const struct tomoyo_path_info * +tomoyo_path_matches_group(const struct tomoyo_path_info *pathname, + const struct tomoyo_group *group) { struct tomoyo_path_group *member; - bool matched = false; list_for_each_entry_rcu(member, &group->member_list, head.list) { if (member->head.is_deleted) continue; if (!tomoyo_path_matches_pattern(pathname, member->member_name)) continue; - matched = true; - break; + return member->member_name; } - return matched; + return NULL; } /** diff --git a/security/tomoyo/mount.c b/security/tomoyo/mount.c index cfeff871908e..82bf8c2390bc 100644 --- a/security/tomoyo/mount.c +++ b/security/tomoyo/mount.c @@ -60,7 +60,7 @@ static int tomoyo_audit_mount_log(struct tomoyo_request_info *r) flags); } -static bool tomoyo_check_mount_acl(const struct tomoyo_request_info *r, +static bool tomoyo_check_mount_acl(struct tomoyo_request_info *r, const struct tomoyo_acl_info *ptr) { const struct tomoyo_mount_acl *acl = |