summaryrefslogtreecommitdiffstats
path: root/security/tomoyo/common.c
diff options
context:
space:
mode:
Diffstat (limited to 'security/tomoyo/common.c')
-rw-r--r--security/tomoyo/common.c228
1 files changed, 185 insertions, 43 deletions
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 2e43aec1c36..150911c7ff0 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -20,6 +20,7 @@ const char * const tomoyo_mode[TOMOYO_CONFIG_MAX_MODE] = {
/* String table for /sys/kernel/security/tomoyo/profile */
const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX
+ TOMOYO_MAX_MAC_CATEGORY_INDEX] = {
+ /* CONFIG::file group */
[TOMOYO_MAC_FILE_EXECUTE] = "execute",
[TOMOYO_MAC_FILE_OPEN] = "open",
[TOMOYO_MAC_FILE_CREATE] = "create",
@@ -43,7 +44,28 @@ const char * const tomoyo_mac_keywords[TOMOYO_MAX_MAC_INDEX
[TOMOYO_MAC_FILE_MOUNT] = "mount",
[TOMOYO_MAC_FILE_UMOUNT] = "unmount",
[TOMOYO_MAC_FILE_PIVOT_ROOT] = "pivot_root",
+ /* CONFIG::network group */
+ [TOMOYO_MAC_NETWORK_INET_STREAM_BIND] = "inet_stream_bind",
+ [TOMOYO_MAC_NETWORK_INET_STREAM_LISTEN] = "inet_stream_listen",
+ [TOMOYO_MAC_NETWORK_INET_STREAM_CONNECT] = "inet_stream_connect",
+ [TOMOYO_MAC_NETWORK_INET_DGRAM_BIND] = "inet_dgram_bind",
+ [TOMOYO_MAC_NETWORK_INET_DGRAM_SEND] = "inet_dgram_send",
+ [TOMOYO_MAC_NETWORK_INET_RAW_BIND] = "inet_raw_bind",
+ [TOMOYO_MAC_NETWORK_INET_RAW_SEND] = "inet_raw_send",
+ [TOMOYO_MAC_NETWORK_UNIX_STREAM_BIND] = "unix_stream_bind",
+ [TOMOYO_MAC_NETWORK_UNIX_STREAM_LISTEN] = "unix_stream_listen",
+ [TOMOYO_MAC_NETWORK_UNIX_STREAM_CONNECT] = "unix_stream_connect",
+ [TOMOYO_MAC_NETWORK_UNIX_DGRAM_BIND] = "unix_dgram_bind",
+ [TOMOYO_MAC_NETWORK_UNIX_DGRAM_SEND] = "unix_dgram_send",
+ [TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_BIND] = "unix_seqpacket_bind",
+ [TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_LISTEN] = "unix_seqpacket_listen",
+ [TOMOYO_MAC_NETWORK_UNIX_SEQPACKET_CONNECT] = "unix_seqpacket_connect",
+ /* CONFIG::misc group */
+ [TOMOYO_MAC_ENVIRON] = "env",
+ /* CONFIG group */
[TOMOYO_MAX_MAC_INDEX + TOMOYO_MAC_CATEGORY_FILE] = "file",
+ [TOMOYO_MAX_MAC_INDEX + TOMOYO_MAC_CATEGORY_NETWORK] = "network",
+ [TOMOYO_MAX_MAC_INDEX + TOMOYO_MAC_CATEGORY_MISC] = "misc",
};
/* String table for conditions. */
@@ -130,10 +152,20 @@ const char * const tomoyo_path_keyword[TOMOYO_MAX_PATH_OPERATION] = {
[TOMOYO_TYPE_UMOUNT] = "unmount",
};
+/* String table for socket's operation. */
+const char * const tomoyo_socket_keyword[TOMOYO_MAX_NETWORK_OPERATION] = {
+ [TOMOYO_NETWORK_BIND] = "bind",
+ [TOMOYO_NETWORK_LISTEN] = "listen",
+ [TOMOYO_NETWORK_CONNECT] = "connect",
+ [TOMOYO_NETWORK_SEND] = "send",
+};
+
/* String table for categories. */
static const char * const tomoyo_category_keywords
[TOMOYO_MAX_MAC_CATEGORY_INDEX] = {
- [TOMOYO_MAC_CATEGORY_FILE] = "file",
+ [TOMOYO_MAC_CATEGORY_FILE] = "file",
+ [TOMOYO_MAC_CATEGORY_NETWORK] = "network",
+ [TOMOYO_MAC_CATEGORY_MISC] = "misc",
};
/* Permit policy management by non-root user? */
@@ -230,13 +262,17 @@ static void tomoyo_set_string(struct tomoyo_io_buffer *head, const char *string)
WARN_ON(1);
}
+static void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt,
+ ...) __printf(2, 3);
+
/**
* tomoyo_io_printf - printf() to "struct tomoyo_io_buffer" structure.
*
* @head: Pointer to "struct tomoyo_io_buffer".
* @fmt: The printf()'s format string, followed by parameters.
*/
-void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt, ...)
+static void tomoyo_io_printf(struct tomoyo_io_buffer *head, const char *fmt,
+ ...)
{
va_list args;
size_t len;
@@ -313,7 +349,7 @@ void tomoyo_init_policy_namespace(struct tomoyo_policy_namespace *ns)
INIT_LIST_HEAD(&ns->group_list[idx]);
for (idx = 0; idx < TOMOYO_MAX_POLICY; idx++)
INIT_LIST_HEAD(&ns->policy_list[idx]);
- ns->profile_version = 20100903;
+ ns->profile_version = 20110903;
tomoyo_namespace_enabled = !list_empty(&tomoyo_namespace_list);
list_add_tail_rcu(&ns->namespace_list, &tomoyo_namespace_list);
}
@@ -466,8 +502,10 @@ static struct tomoyo_profile *tomoyo_assign_profile
TOMOYO_CONFIG_WANT_REJECT_LOG;
memset(ptr->config, TOMOYO_CONFIG_USE_DEFAULT,
sizeof(ptr->config));
- ptr->pref[TOMOYO_PREF_MAX_AUDIT_LOG] = 1024;
- ptr->pref[TOMOYO_PREF_MAX_LEARNING_ENTRY] = 2048;
+ ptr->pref[TOMOYO_PREF_MAX_AUDIT_LOG] =
+ CONFIG_SECURITY_TOMOYO_MAX_AUDIT_LOG;
+ ptr->pref[TOMOYO_PREF_MAX_LEARNING_ENTRY] =
+ CONFIG_SECURITY_TOMOYO_MAX_ACCEPT_ENTRY;
mb(); /* Avoid out-of-order execution. */
ns->profile_ptr[profile] = ptr;
entry = NULL;
@@ -951,14 +989,12 @@ static bool tomoyo_select_domain(struct tomoyo_io_buffer *head,
(global_pid = true, sscanf(data, "global-pid=%u", &pid) == 1)) {
struct task_struct *p;
rcu_read_lock();
- read_lock(&tasklist_lock);
if (global_pid)
p = find_task_by_pid_ns(pid, &init_pid_ns);
else
p = find_task_by_vpid(pid);
if (p)
domain = tomoyo_real_domain(p);
- read_unlock(&tasklist_lock);
rcu_read_unlock();
} else if (!strncmp(data, "domain=", 7)) {
if (tomoyo_domain_def(data + 7))
@@ -982,6 +1018,48 @@ static bool tomoyo_select_domain(struct tomoyo_io_buffer *head,
}
/**
+ * tomoyo_same_task_acl - Check for duplicated "struct tomoyo_task_acl" entry.
+ *
+ * @a: Pointer to "struct tomoyo_acl_info".
+ * @b: Pointer to "struct tomoyo_acl_info".
+ *
+ * Returns true if @a == @b, false otherwise.
+ */
+static bool tomoyo_same_task_acl(const struct tomoyo_acl_info *a,
+ const struct tomoyo_acl_info *b)
+{
+ const struct tomoyo_task_acl *p1 = container_of(a, typeof(*p1), head);
+ const struct tomoyo_task_acl *p2 = container_of(b, typeof(*p2), head);
+ return p1->domainname == p2->domainname;
+}
+
+/**
+ * tomoyo_write_task - Update task related list.
+ *
+ * @param: Pointer to "struct tomoyo_acl_param".
+ *
+ * Returns 0 on success, negative value otherwise.
+ *
+ * Caller holds tomoyo_read_lock().
+ */
+static int tomoyo_write_task(struct tomoyo_acl_param *param)
+{
+ int error = -EINVAL;
+ if (tomoyo_str_starts(&param->data, "manual_domain_transition ")) {
+ struct tomoyo_task_acl e = {
+ .head.type = TOMOYO_TYPE_MANUAL_TASK_ACL,
+ .domainname = tomoyo_get_domainname(param),
+ };
+ if (e.domainname)
+ error = tomoyo_update_domain(&e.head, sizeof(e), param,
+ tomoyo_same_task_acl,
+ NULL);
+ tomoyo_put_name(e.domainname);
+ }
+ return error;
+}
+
+/**
* tomoyo_delete_domain - Delete a domain.
*
* @domainname: The name of domain.
@@ -1039,11 +1117,16 @@ static int tomoyo_write_domain2(struct tomoyo_policy_namespace *ns,
static const struct {
const char *keyword;
int (*write) (struct tomoyo_acl_param *);
- } tomoyo_callback[1] = {
+ } tomoyo_callback[5] = {
{ "file ", tomoyo_write_file },
+ { "network inet ", tomoyo_write_inet_network },
+ { "network unix ", tomoyo_write_unix_network },
+ { "misc ", tomoyo_write_misc },
+ { "task ", tomoyo_write_task },
};
u8 i;
- for (i = 0; i < 1; i++) {
+
+ for (i = 0; i < ARRAY_SIZE(tomoyo_callback); i++) {
if (!tomoyo_str_starts(&param.data,
tomoyo_callback[i].keyword))
continue;
@@ -1127,6 +1210,10 @@ static bool tomoyo_print_condition(struct tomoyo_io_buffer *head,
case 0:
head->r.cond_index = 0;
head->r.cond_step++;
+ if (cond->transit) {
+ tomoyo_set_space(head);
+ tomoyo_set_string(head, cond->transit->name);
+ }
/* fall through */
case 1:
{
@@ -1239,6 +1326,10 @@ static bool tomoyo_print_condition(struct tomoyo_io_buffer *head,
head->r.cond_step++;
/* fall through */
case 3:
+ if (cond->grant_log != TOMOYO_GRANTLOG_AUTO)
+ tomoyo_io_printf(head, " grant_log=%s",
+ tomoyo_yesno(cond->grant_log ==
+ TOMOYO_GRANTLOG_YES));
tomoyo_set_lf(head);
return true;
}
@@ -1306,6 +1397,12 @@ static bool tomoyo_print_entry(struct tomoyo_io_buffer *head,
if (first)
return true;
tomoyo_print_name_union(head, &ptr->name);
+ } else if (acl_type == TOMOYO_TYPE_MANUAL_TASK_ACL) {
+ struct tomoyo_task_acl *ptr =
+ container_of(acl, typeof(*ptr), head);
+ tomoyo_set_group(head, "task ");
+ tomoyo_set_string(head, "manual_domain_transition ");
+ tomoyo_set_string(head, ptr->domainname->name);
} else if (head->r.print_transition_related_only) {
return true;
} else if (acl_type == TOMOYO_TYPE_PATH2_ACL) {
@@ -1370,6 +1467,60 @@ static bool tomoyo_print_entry(struct tomoyo_io_buffer *head,
tomoyo_print_number_union(head, &ptr->mode);
tomoyo_print_number_union(head, &ptr->major);
tomoyo_print_number_union(head, &ptr->minor);
+ } else if (acl_type == TOMOYO_TYPE_INET_ACL) {
+ struct tomoyo_inet_acl *ptr =
+ container_of(acl, typeof(*ptr), head);
+ const u8 perm = ptr->perm;
+
+ for (bit = 0; bit < TOMOYO_MAX_NETWORK_OPERATION; bit++) {
+ if (!(perm & (1 << bit)))
+ continue;
+ if (first) {
+ tomoyo_set_group(head, "network inet ");
+ tomoyo_set_string(head, tomoyo_proto_keyword
+ [ptr->protocol]);
+ tomoyo_set_space(head);
+ first = false;
+ } else {
+ tomoyo_set_slash(head);
+ }
+ tomoyo_set_string(head, tomoyo_socket_keyword[bit]);
+ }
+ if (first)
+ return true;
+ tomoyo_set_space(head);
+ if (ptr->address.group) {
+ tomoyo_set_string(head, "@");
+ tomoyo_set_string(head, ptr->address.group->group_name
+ ->name);
+ } else {
+ char buf[128];
+ tomoyo_print_ip(buf, sizeof(buf), &ptr->address);
+ tomoyo_io_printf(head, "%s", buf);
+ }
+ tomoyo_print_number_union(head, &ptr->port);
+ } else if (acl_type == TOMOYO_TYPE_UNIX_ACL) {
+ struct tomoyo_unix_acl *ptr =
+ container_of(acl, typeof(*ptr), head);
+ const u8 perm = ptr->perm;
+
+ for (bit = 0; bit < TOMOYO_MAX_NETWORK_OPERATION; bit++) {
+ if (!(perm & (1 << bit)))
+ continue;
+ if (first) {
+ tomoyo_set_group(head, "network unix ");
+ tomoyo_set_string(head, tomoyo_proto_keyword
+ [ptr->protocol]);
+ tomoyo_set_space(head);
+ first = false;
+ } else {
+ tomoyo_set_slash(head);
+ }
+ tomoyo_set_string(head, tomoyo_socket_keyword[bit]);
+ }
+ if (first)
+ return true;
+ tomoyo_print_name_union(head, &ptr->name);
} else if (acl_type == TOMOYO_TYPE_MOUNT_ACL) {
struct tomoyo_mount_acl *ptr =
container_of(acl, typeof(*ptr), head);
@@ -1378,6 +1529,12 @@ static bool tomoyo_print_entry(struct tomoyo_io_buffer *head,
tomoyo_print_name_union(head, &ptr->dir_name);
tomoyo_print_name_union(head, &ptr->fs_type);
tomoyo_print_number_union(head, &ptr->flags);
+ } else if (acl_type == TOMOYO_TYPE_ENV_ACL) {
+ struct tomoyo_env_acl *ptr =
+ container_of(acl, typeof(*ptr), head);
+
+ tomoyo_set_group(head, "misc env ");
+ tomoyo_set_string(head, ptr->env->name);
}
if (acl->cond) {
head->r.print_cond_part = true;
@@ -1510,14 +1667,12 @@ static void tomoyo_read_pid(struct tomoyo_io_buffer *head)
global_pid = true;
pid = (unsigned int) simple_strtoul(buf, NULL, 10);
rcu_read_lock();
- read_lock(&tasklist_lock);
if (global_pid)
p = find_task_by_pid_ns(pid, &init_pid_ns);
else
p = find_task_by_vpid(pid);
if (p)
domain = tomoyo_real_domain(p);
- read_unlock(&tasklist_lock);
rcu_read_unlock();
if (!domain)
return;
@@ -1537,8 +1692,9 @@ static const char *tomoyo_transition_type[TOMOYO_MAX_TRANSITION_TYPE] = {
/* String table for grouping keywords. */
static const char *tomoyo_group_name[TOMOYO_MAX_GROUP] = {
- [TOMOYO_PATH_GROUP] = "path_group ",
- [TOMOYO_NUMBER_GROUP] = "number_group ",
+ [TOMOYO_PATH_GROUP] = "path_group ",
+ [TOMOYO_NUMBER_GROUP] = "number_group ",
+ [TOMOYO_ADDRESS_GROUP] = "address_group ",
};
/**
@@ -1580,7 +1736,7 @@ static int tomoyo_write_exception(struct tomoyo_io_buffer *head)
}
/**
- * tomoyo_read_group - Read "struct tomoyo_path_group"/"struct tomoyo_number_group" list.
+ * tomoyo_read_group - Read "struct tomoyo_path_group"/"struct tomoyo_number_group"/"struct tomoyo_address_group" list.
*
* @head: Pointer to "struct tomoyo_io_buffer".
* @idx: Index number.
@@ -1617,6 +1773,15 @@ static bool tomoyo_read_group(struct tomoyo_io_buffer *head, const int idx)
(ptr,
struct tomoyo_number_group,
head)->number);
+ } else if (idx == TOMOYO_ADDRESS_GROUP) {
+ char buffer[128];
+
+ struct tomoyo_address_group *member =
+ container_of(ptr, typeof(*member),
+ head);
+ tomoyo_print_ip(buffer, sizeof(buffer),
+ &member->address);
+ tomoyo_io_printf(head, " %s", buffer);
}
tomoyo_set_lf(head);
}
@@ -2066,27 +2231,7 @@ static int tomoyo_write_answer(struct tomoyo_io_buffer *head)
static void tomoyo_read_version(struct tomoyo_io_buffer *head)
{
if (!head->r.eof) {
- tomoyo_io_printf(head, "2.4.0");
- head->r.eof = true;
- }
-}
-
-/**
- * tomoyo_read_self_domain - Get the current process's domainname.
- *
- * @head: Pointer to "struct tomoyo_io_buffer".
- *
- * Returns the current process's domainname.
- */
-static void tomoyo_read_self_domain(struct tomoyo_io_buffer *head)
-{
- if (!head->r.eof) {
- /*
- * tomoyo_domain()->domainname != NULL
- * because every process belongs to a domain and
- * the domain's name cannot be NULL.
- */
- tomoyo_io_printf(head, "%s", tomoyo_domain()->domainname->name);
+ tomoyo_io_printf(head, "2.5.0");
head->r.eof = true;
}
}
@@ -2221,10 +2366,6 @@ int tomoyo_open_control(const u8 type, struct file *file)
head->poll = tomoyo_poll_log;
head->read = tomoyo_read_log;
break;
- case TOMOYO_SELFDOMAIN:
- /* /sys/kernel/security/tomoyo/self_domain */
- head->read = tomoyo_read_self_domain;
- break;
case TOMOYO_PROCESS_STATUS:
/* /sys/kernel/security/tomoyo/.process_status */
head->write = tomoyo_write_pid;
@@ -2453,6 +2594,7 @@ ssize_t tomoyo_write_control(struct tomoyo_io_buffer *head,
return -EFAULT;
if (mutex_lock_interruptible(&head->io_sem))
return -EINTR;
+ head->read_user_buf_avail = 0;
idx = tomoyo_read_lock();
/* Read a line and dispatch it to the policy handler. */
while (avail_len > 0) {
@@ -2562,11 +2704,11 @@ void tomoyo_check_profile(void)
struct tomoyo_domain_info *domain;
const int idx = tomoyo_read_lock();
tomoyo_policy_loaded = true;
- printk(KERN_INFO "TOMOYO: 2.4.0\n");
+ printk(KERN_INFO "TOMOYO: 2.5.0\n");
list_for_each_entry_rcu(domain, &tomoyo_domain_list, list) {
const u8 profile = domain->profile;
const struct tomoyo_policy_namespace *ns = domain->ns;
- if (ns->profile_version != 20100903)
+ if (ns->profile_version != 20110903)
printk(KERN_ERR
"Profile version %u is not supported.\n",
ns->profile_version);
@@ -2577,9 +2719,9 @@ void tomoyo_check_profile(void)
else
continue;
printk(KERN_ERR
- "Userland tools for TOMOYO 2.4 must be installed and "
+ "Userland tools for TOMOYO 2.5 must be installed and "
"policy must be initialized.\n");
- printk(KERN_ERR "Please see http://tomoyo.sourceforge.jp/2.4/ "
+ printk(KERN_ERR "Please see http://tomoyo.sourceforge.jp/2.5/ "
"for more information.\n");
panic("STOP!");
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-23 21:43:30 +0000