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-rw-r--r--security/selinux/hooks.c45
-rw-r--r--security/selinux/ss/avtab.c8
-rw-r--r--security/selinux/ss/conditional.c18
-rw-r--r--security/selinux/ss/conditional.h2
-rw-r--r--security/selinux/ss/ebitmap.c4
-rw-r--r--security/selinux/ss/hashtab.c6
-rw-r--r--security/selinux/ss/mls.c14
-rw-r--r--security/selinux/ss/policydb.c20
-rw-r--r--security/selinux/ss/services.c8
-rw-r--r--security/selinux/ss/sidtab.c12
10 files changed, 71 insertions, 66 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 03fc6a81ae3..6b5790bba8f 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -957,7 +957,8 @@ out_err:
return rc;
}
-void selinux_write_opts(struct seq_file *m, struct security_mnt_opts *opts)
+static void selinux_write_opts(struct seq_file *m,
+ struct security_mnt_opts *opts)
{
int i;
char *prefix;
@@ -3548,38 +3549,44 @@ out:
#endif /* IPV6 */
static int selinux_parse_skb(struct sk_buff *skb, struct avc_audit_data *ad,
- char **addrp, int src, u8 *proto)
+ char **_addrp, int src, u8 *proto)
{
- int ret = 0;
+ char *addrp;
+ int ret;
switch (ad->u.net.family) {
case PF_INET:
ret = selinux_parse_skb_ipv4(skb, ad, proto);
- if (ret || !addrp)
- break;
- *addrp = (char *)(src ? &ad->u.net.v4info.saddr :
- &ad->u.net.v4info.daddr);
- break;
+ if (ret)
+ goto parse_error;
+ addrp = (char *)(src ? &ad->u.net.v4info.saddr :
+ &ad->u.net.v4info.daddr);
+ goto okay;
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
case PF_INET6:
ret = selinux_parse_skb_ipv6(skb, ad, proto);
- if (ret || !addrp)
- break;
- *addrp = (char *)(src ? &ad->u.net.v6info.saddr :
- &ad->u.net.v6info.daddr);
- break;
+ if (ret)
+ goto parse_error;
+ addrp = (char *)(src ? &ad->u.net.v6info.saddr :
+ &ad->u.net.v6info.daddr);
+ goto okay;
#endif /* IPV6 */
default:
- break;
+ addrp = NULL;
+ goto okay;
}
- if (unlikely(ret))
- printk(KERN_WARNING
- "SELinux: failure in selinux_parse_skb(),"
- " unable to parse packet\n");
-
+parse_error:
+ printk(KERN_WARNING
+ "SELinux: failure in selinux_parse_skb(),"
+ " unable to parse packet\n");
return ret;
+
+okay:
+ if (_addrp)
+ *_addrp = addrp;
+ return 0;
}
/**
diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c
index a1be97f8bee..1215b8e47db 100644
--- a/security/selinux/ss/avtab.c
+++ b/security/selinux/ss/avtab.c
@@ -98,7 +98,7 @@ struct avtab_node *
avtab_insert_nonunique(struct avtab *h, struct avtab_key *key, struct avtab_datum *datum)
{
int hvalue;
- struct avtab_node *prev, *cur, *newnode;
+ struct avtab_node *prev, *cur;
u16 specified = key->specified & ~(AVTAB_ENABLED|AVTAB_ENABLED_OLD);
if (!h || !h->htable)
@@ -122,9 +122,7 @@ avtab_insert_nonunique(struct avtab *h, struct avtab_key *key, struct avtab_datu
key->target_class < cur->key.target_class)
break;
}
- newnode = avtab_insert_node(h, hvalue, prev, cur, key, datum);
-
- return newnode;
+ return avtab_insert_node(h, hvalue, prev, cur, key, datum);
}
struct avtab_datum *avtab_search(struct avtab *h, struct avtab_key *key)
@@ -231,7 +229,7 @@ void avtab_destroy(struct avtab *h)
for (i = 0; i < h->nslot; i++) {
cur = h->htable[i];
- while (cur != NULL) {
+ while (cur) {
temp = cur;
cur = cur->next;
kmem_cache_free(avtab_node_cachep, temp);
diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c
index fb4efe4f4bc..4a4e35cac22 100644
--- a/security/selinux/ss/conditional.c
+++ b/security/selinux/ss/conditional.c
@@ -29,7 +29,7 @@ static int cond_evaluate_expr(struct policydb *p, struct cond_expr *expr)
int s[COND_EXPR_MAXDEPTH];
int sp = -1;
- for (cur = expr; cur != NULL; cur = cur->next) {
+ for (cur = expr; cur; cur = cur->next) {
switch (cur->expr_type) {
case COND_BOOL:
if (sp == (COND_EXPR_MAXDEPTH - 1))
@@ -97,14 +97,14 @@ int evaluate_cond_node(struct policydb *p, struct cond_node *node)
if (new_state == -1)
printk(KERN_ERR "SELinux: expression result was undefined - disabling all rules.\n");
/* turn the rules on or off */
- for (cur = node->true_list; cur != NULL; cur = cur->next) {
+ for (cur = node->true_list; cur; cur = cur->next) {
if (new_state <= 0)
cur->node->key.specified &= ~AVTAB_ENABLED;
else
cur->node->key.specified |= AVTAB_ENABLED;
}
- for (cur = node->false_list; cur != NULL; cur = cur->next) {
+ for (cur = node->false_list; cur; cur = cur->next) {
/* -1 or 1 */
if (new_state)
cur->node->key.specified &= ~AVTAB_ENABLED;
@@ -128,7 +128,7 @@ int cond_policydb_init(struct policydb *p)
static void cond_av_list_destroy(struct cond_av_list *list)
{
struct cond_av_list *cur, *next;
- for (cur = list; cur != NULL; cur = next) {
+ for (cur = list; cur; cur = next) {
next = cur->next;
/* the avtab_ptr_t node is destroy by the avtab */
kfree(cur);
@@ -139,7 +139,7 @@ static void cond_node_destroy(struct cond_node *node)
{
struct cond_expr *cur_expr, *next_expr;
- for (cur_expr = node->expr; cur_expr != NULL; cur_expr = next_expr) {
+ for (cur_expr = node->expr; cur_expr; cur_expr = next_expr) {
next_expr = cur_expr->next;
kfree(cur_expr);
}
@@ -155,7 +155,7 @@ static void cond_list_destroy(struct cond_node *list)
if (list == NULL)
return;
- for (cur = list; cur != NULL; cur = next) {
+ for (cur = list; cur; cur = next) {
next = cur->next;
cond_node_destroy(cur);
}
@@ -239,7 +239,7 @@ int cond_read_bool(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto err;
- key[len] = 0;
+ key[len] = '\0';
if (hashtab_insert(h, key, booldatum))
goto err;
@@ -291,7 +291,7 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum
goto err;
}
found = 0;
- for (cur = other; cur != NULL; cur = cur->next) {
+ for (cur = other; cur; cur = cur->next) {
if (cur->node == node_ptr) {
found = 1;
break;
@@ -485,7 +485,7 @@ void cond_compute_av(struct avtab *ctab, struct avtab_key *key, struct av_decisi
if (!ctab || !key || !avd)
return;
- for (node = avtab_search_node(ctab, key); node != NULL;
+ for (node = avtab_search_node(ctab, key); node;
node = avtab_search_node_next(node, key->specified)) {
if ((u16)(AVTAB_ALLOWED|AVTAB_ENABLED) ==
(node->key.specified & (AVTAB_ALLOWED|AVTAB_ENABLED)))
diff --git a/security/selinux/ss/conditional.h b/security/selinux/ss/conditional.h
index 65b9f8366e9..53ddb013ae5 100644
--- a/security/selinux/ss/conditional.h
+++ b/security/selinux/ss/conditional.h
@@ -28,7 +28,7 @@ struct cond_expr {
#define COND_XOR 5 /* bool ^ bool */
#define COND_EQ 6 /* bool == bool */
#define COND_NEQ 7 /* bool != bool */
-#define COND_LAST 8
+#define COND_LAST COND_NEQ
__u32 expr_type;
__u32 bool;
struct cond_expr *next;
diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index ddc275490af..68c7348d1ac 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -109,7 +109,7 @@ int ebitmap_netlbl_export(struct ebitmap *ebmap,
*catmap = c_iter;
c_iter->startbit = e_iter->startbit & ~(NETLBL_CATMAP_SIZE - 1);
- while (e_iter != NULL) {
+ while (e_iter) {
for (i = 0; i < EBITMAP_UNIT_NUMS; i++) {
unsigned int delta, e_startbit, c_endbit;
@@ -197,7 +197,7 @@ int ebitmap_netlbl_import(struct ebitmap *ebmap,
}
}
c_iter = c_iter->next;
- } while (c_iter != NULL);
+ } while (c_iter);
if (e_iter != NULL)
ebmap->highbit = e_iter->startbit + EBITMAP_SIZE;
else
diff --git a/security/selinux/ss/hashtab.c b/security/selinux/ss/hashtab.c
index 2e7788e1321..933e735bb18 100644
--- a/security/selinux/ss/hashtab.c
+++ b/security/selinux/ss/hashtab.c
@@ -81,7 +81,7 @@ void *hashtab_search(struct hashtab *h, const void *key)
hvalue = h->hash_value(h, key);
cur = h->htable[hvalue];
- while (cur != NULL && h->keycmp(h, key, cur->key) > 0)
+ while (cur && h->keycmp(h, key, cur->key) > 0)
cur = cur->next;
if (cur == NULL || (h->keycmp(h, key, cur->key) != 0))
@@ -100,7 +100,7 @@ void hashtab_destroy(struct hashtab *h)
for (i = 0; i < h->size; i++) {
cur = h->htable[i];
- while (cur != NULL) {
+ while (cur) {
temp = cur;
cur = cur->next;
kfree(temp);
@@ -127,7 +127,7 @@ int hashtab_map(struct hashtab *h,
for (i = 0; i < h->size; i++) {
cur = h->htable[i];
- while (cur != NULL) {
+ while (cur) {
ret = apply(cur->key, cur->datum, args);
if (ret)
return ret;
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index 77d745da48b..b5407f16c2a 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -283,8 +283,8 @@ int mls_context_to_sid(struct policydb *pol,
p++;
delim = *p;
- if (delim != 0)
- *p++ = 0;
+ if (delim != '\0')
+ *p++ = '\0';
for (l = 0; l < 2; l++) {
levdatum = hashtab_search(pol->p_levels.table, scontextp);
@@ -302,14 +302,14 @@ int mls_context_to_sid(struct policydb *pol,
while (*p && *p != ',' && *p != '-')
p++;
delim = *p;
- if (delim != 0)
- *p++ = 0;
+ if (delim != '\0')
+ *p++ = '\0';
/* Separate into range if exists */
rngptr = strchr(scontextp, '.');
if (rngptr != NULL) {
/* Remove '.' */
- *rngptr++ = 0;
+ *rngptr++ = '\0';
}
catdatum = hashtab_search(pol->p_cats.table,
@@ -357,8 +357,8 @@ int mls_context_to_sid(struct policydb *pol,
p++;
delim = *p;
- if (delim != 0)
- *p++ = 0;
+ if (delim != '\0')
+ *p++ = '\0';
} else
break;
}
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 2391761ae42..26646305dc0 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -932,7 +932,7 @@ static int perm_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto bad;
- key[len] = 0;
+ key[len] = '\0';
rc = hashtab_insert(h, key, perdatum);
if (rc)
@@ -979,7 +979,7 @@ static int common_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto bad;
- key[len] = 0;
+ key[len] = '\0';
for (i = 0; i < nel; i++) {
rc = perm_read(p, comdatum->permissions.table, fp);
@@ -1117,7 +1117,7 @@ static int class_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto bad;
- key[len] = 0;
+ key[len] = '\0';
if (len2) {
cladatum->comkey = kmalloc(len2 + 1, GFP_KERNEL);
@@ -1128,7 +1128,7 @@ static int class_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(cladatum->comkey, fp, len2);
if (rc < 0)
goto bad;
- cladatum->comkey[len2] = 0;
+ cladatum->comkey[len2] = '\0';
cladatum->comdatum = hashtab_search(p->p_commons.table,
cladatum->comkey);
@@ -1201,7 +1201,7 @@ static int role_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto bad;
- key[len] = 0;
+ key[len] = '\0';
rc = ebitmap_read(&role->dominates, fp);
if (rc)
@@ -1262,7 +1262,7 @@ static int type_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto bad;
- key[len] = 0;
+ key[len] = '\0';
rc = hashtab_insert(h, key, typdatum);
if (rc)
@@ -1334,7 +1334,7 @@ static int user_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto bad;
- key[len] = 0;
+ key[len] = '\0';
rc = ebitmap_read(&usrdatum->roles, fp);
if (rc)
@@ -1388,7 +1388,7 @@ static int sens_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto bad;
- key[len] = 0;
+ key[len] = '\0';
levdatum->level = kmalloc(sizeof(struct mls_level), GFP_ATOMIC);
if (!levdatum->level) {
@@ -1440,7 +1440,7 @@ static int cat_read(struct policydb *p, struct hashtab *h, void *fp)
rc = next_entry(key, fp, len);
if (rc < 0)
goto bad;
- key[len] = 0;
+ key[len] = '\0';
rc = hashtab_insert(h, key, catdatum);
if (rc)
@@ -1523,7 +1523,7 @@ int policydb_read(struct policydb *p, void *fp)
kfree(policydb_str);
goto bad;
}
- policydb_str[len] = 0;
+ policydb_str[len] = '\0';
if (strcmp(policydb_str, POLICYDB_STRING)) {
printk(KERN_ERR "SELinux: policydb string %s does not match "
"my string %s\n", policydb_str, POLICYDB_STRING);
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index b52f923ce68..5a0536bddc6 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -356,7 +356,7 @@ static int context_struct_compute_av(struct context *scontext,
avkey.source_type = i + 1;
avkey.target_type = j + 1;
for (node = avtab_search_node(&policydb.te_avtab, &avkey);
- node != NULL;
+ node;
node = avtab_search_node_next(node, avkey.specified)) {
if (node->key.specified == AVTAB_ALLOWED)
avd->allowed |= node->datum.data;
@@ -1037,7 +1037,7 @@ static int security_compute_sid(u32 ssid,
/* If no permanent rule, also check for enabled conditional rules */
if (!avdatum) {
node = avtab_search_node(&policydb.te_cond_avtab, &avkey);
- for (; node != NULL; node = avtab_search_node_next(node, specified)) {
+ for (; node; node = avtab_search_node_next(node, specified)) {
if (node->key.specified & AVTAB_ENABLED) {
avdatum = &node->datum;
break;
@@ -2050,7 +2050,7 @@ int security_set_bools(int len, int *values)
policydb.bool_val_to_struct[i]->state = 0;
}
- for (cur = policydb.cond_list; cur != NULL; cur = cur->next) {
+ for (cur = policydb.cond_list; cur; cur = cur->next) {
rc = evaluate_cond_node(&policydb, cur);
if (rc)
goto out;
@@ -2102,7 +2102,7 @@ static int security_preserve_bools(struct policydb *p)
if (booldatum)
booldatum->state = bvalues[i];
}
- for (cur = p->cond_list; cur != NULL; cur = cur->next) {
+ for (cur = p->cond_list; cur; cur = cur->next) {
rc = evaluate_cond_node(p, cur);
if (rc)
goto out;
diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c
index a81ded10412..e817989764c 100644
--- a/security/selinux/ss/sidtab.c
+++ b/security/selinux/ss/sidtab.c
@@ -43,7 +43,7 @@ int sidtab_insert(struct sidtab *s, u32 sid, struct context *context)
hvalue = SIDTAB_HASH(sid);
prev = NULL;
cur = s->htable[hvalue];
- while (cur != NULL && sid > cur->sid) {
+ while (cur && sid > cur->sid) {
prev = cur;
cur = cur->next;
}
@@ -92,7 +92,7 @@ static struct context *sidtab_search_core(struct sidtab *s, u32 sid, int force)
hvalue = SIDTAB_HASH(sid);
cur = s->htable[hvalue];
- while (cur != NULL && sid > cur->sid)
+ while (cur && sid > cur->sid)
cur = cur->next;
if (force && cur && sid == cur->sid && cur->context.len)
@@ -103,7 +103,7 @@ static struct context *sidtab_search_core(struct sidtab *s, u32 sid, int force)
sid = SECINITSID_UNLABELED;
hvalue = SIDTAB_HASH(sid);
cur = s->htable[hvalue];
- while (cur != NULL && sid > cur->sid)
+ while (cur && sid > cur->sid)
cur = cur->next;
if (!cur || sid != cur->sid)
return NULL;
@@ -136,7 +136,7 @@ int sidtab_map(struct sidtab *s,
for (i = 0; i < SIDTAB_SIZE; i++) {
cur = s->htable[i];
- while (cur != NULL) {
+ while (cur) {
rc = apply(cur->sid, &cur->context, args);
if (rc)
goto out;
@@ -155,7 +155,7 @@ static inline u32 sidtab_search_context(struct sidtab *s,
for (i = 0; i < SIDTAB_SIZE; i++) {
cur = s->htable[i];
- while (cur != NULL) {
+ while (cur) {
if (context_cmp(&cur->context, context))
return cur->sid;
cur = cur->next;
@@ -242,7 +242,7 @@ void sidtab_destroy(struct sidtab *s)
for (i = 0; i < SIDTAB_SIZE; i++) {
cur = s->htable[i];
- while (cur != NULL) {
+ while (cur) {
temp = cur;
cur = cur->next;
context_destroy(&temp->context);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-25 22:44:34 +0000