@@ -29,34 +29,21 @@ static u32 hashtab_compute_size(u32 nel)
return nel == 0 ? 0 : roundup_pow_of_two(nel);
}
-struct hashtab *hashtab_create(u32 (*hash_value)(struct hashtab *h, const void *key),
- int (*keycmp)(struct hashtab *h, const void *key1, const void *key2),
- u32 nel_hint)
+int hashtab_init(struct hashtab *h,
+ u32 (*hash_value)(struct hashtab *h, const void *key),
+ int (*keycmp)(struct hashtab *h, const void *key1,
+ const void *key2),
+ u32 nel_hint)
{
- struct hashtab *p;
- u32 i, size = hashtab_compute_size(nel_hint);
-
- p = kzalloc(sizeof(*p), GFP_KERNEL);
- if (!p)
- return p;
-
- p->size = size;
- p->nel = 0;
- p->hash_value = hash_value;
- p->keycmp = keycmp;
- if (!size)
- return p;
-
- p->htable = kmalloc_array(size, sizeof(*p->htable), GFP_KERNEL);
- if (!p->htable) {
- kfree(p);
- return NULL;
- }
-
- for (i = 0; i < size; i++)
- p->htable[i] = NULL;
+ h->size = hashtab_compute_size(nel_hint);
+ h->nel = 0;
+ h->hash_value = hash_value;
+ h->keycmp = keycmp;
+ if (!h->size)
+ return 0;
- return p;
+ h->htable = kcalloc(h->size, sizeof(*h->htable), GFP_KERNEL);
+ return h->htable ? 0 : -ENOMEM;
}
int hashtab_insert(struct hashtab *h, void *key, void *datum)
@@ -66,7 +53,7 @@ int hashtab_insert(struct hashtab *h, void *key, void *datum)
cond_resched();
- if (!h || !h->size || h->nel == HASHTAB_MAX_NODES)
+ if (!h->size || h->nel == HASHTAB_MAX_NODES)
return -EINVAL;
hvalue = h->hash_value(h, key);
@@ -102,7 +89,7 @@ void *hashtab_search(struct hashtab *h, const void *key)
u32 hvalue;
struct hashtab_node *cur;
- if (!h || !h->size)
+ if (!h->size)
return NULL;
hvalue = h->hash_value(h, key);
@@ -121,9 +108,6 @@ void hashtab_destroy(struct hashtab *h)
u32 i;
struct hashtab_node *cur, *temp;
- if (!h)
- return;
-
for (i = 0; i < h->size; i++) {
cur = h->htable[i];
while (cur) {
@@ -136,8 +120,6 @@ void hashtab_destroy(struct hashtab *h)
kfree(h->htable);
h->htable = NULL;
-
- kfree(h);
}
int hashtab_map(struct hashtab *h,
@@ -148,9 +130,6 @@ int hashtab_map(struct hashtab *h,
int ret;
struct hashtab_node *cur;
- if (!h)
- return 0;
-
for (i = 0; i < h->size; i++) {
cur = h->htable[i];
while (cur) {
@@ -35,14 +35,15 @@ struct hashtab_info {
};
/*
- * Creates a new hash table with the specified characteristics.
+ * Initializes a new hash table with the specified characteristics.
*
- * Returns NULL if insufficent space is available or
- * the new hash table otherwise.
+ * Returns -ENOMEM if insufficient space is available or 0 otherwise.
*/
-struct hashtab *hashtab_create(u32 (*hash_value)(struct hashtab *h, const void *key),
- int (*keycmp)(struct hashtab *h, const void *key1, const void *key2),
- u32 nel_hint);
+int hashtab_init(struct hashtab *h,
+ u32 (*hash_value)(struct hashtab *h, const void *key),
+ int (*keycmp)(struct hashtab *h, const void *key1,
+ const void *key2),
+ u32 nel_hint);
/*
* Inserts the specified (key, datum) pair into the specified hash table.
@@ -165,7 +165,7 @@ int mls_level_isvalid(struct policydb *p, struct mls_level *l)
if (!l->sens || l->sens > p->p_levels.nprim)
return 0;
- levdatum = hashtab_search(p->p_levels.table,
+ levdatum = hashtab_search(&p->p_levels.table,
sym_name(p, SYM_LEVELS, l->sens - 1));
if (!levdatum)
return 0;
@@ -293,7 +293,7 @@ int mls_context_to_sid(struct policydb *pol,
*(next_cat++) = '\0';
/* Parse sensitivity. */
- levdatum = hashtab_search(pol->p_levels.table, sensitivity);
+ levdatum = hashtab_search(&pol->p_levels.table, sensitivity);
if (!levdatum)
return -EINVAL;
context->range.level[l].sens = levdatum->level->sens;
@@ -312,7 +312,7 @@ int mls_context_to_sid(struct policydb *pol,
*rngptr++ = '\0';
}
- catdatum = hashtab_search(pol->p_cats.table, cur_cat);
+ catdatum = hashtab_search(&pol->p_cats.table, cur_cat);
if (!catdatum)
return -EINVAL;
@@ -325,7 +325,7 @@ int mls_context_to_sid(struct policydb *pol,
if (rngptr == NULL)
continue;
- rngdatum = hashtab_search(pol->p_cats.table, rngptr);
+ rngdatum = hashtab_search(&pol->p_cats.table, rngptr);
if (!rngdatum)
return -EINVAL;
@@ -458,7 +458,7 @@ int mls_convert_context(struct policydb *oldp,
return 0;
for (l = 0; l < 2; l++) {
- levdatum = hashtab_search(newp->p_levels.table,
+ levdatum = hashtab_search(&newp->p_levels.table,
sym_name(oldp, SYM_LEVELS,
oldc->range.level[l].sens - 1));
@@ -470,7 +470,7 @@ int mls_convert_context(struct policydb *oldp,
node, i) {
int rc;
- catdatum = hashtab_search(newp->p_cats.table,
+ catdatum = hashtab_search(&newp->p_cats.table,
sym_name(oldp, SYM_CATS, i));
if (!catdatum)
return -EINVAL;
@@ -506,7 +506,7 @@ int mls_compute_sid(struct policydb *p,
rtr.source_type = scontext->type;
rtr.target_type = tcontext->type;
rtr.target_class = tclass;
- r = hashtab_search(p->range_tr, &rtr);
+ r = hashtab_search(&p->range_tr, &rtr);
if (r)
return mls_range_set(newcontext, r);
@@ -195,8 +195,8 @@ static int common_destroy(void *key, void *datum, void *p)
kfree(key);
if (datum) {
comdatum = datum;
- hashtab_map(comdatum->permissions.table, perm_destroy, NULL);
- hashtab_destroy(comdatum->permissions.table);
+ hashtab_map(&comdatum->permissions.table, perm_destroy, NULL);
+ hashtab_destroy(&comdatum->permissions.table);
}
kfree(datum);
return 0;
@@ -224,8 +224,8 @@ static int cls_destroy(void *key, void *datum, void *p)
kfree(key);
if (datum) {
cladatum = datum;
- hashtab_map(cladatum->permissions.table, perm_destroy, NULL);
- hashtab_destroy(cladatum->permissions.table);
+ hashtab_map(&cladatum->permissions.table, perm_destroy, NULL);
+ hashtab_destroy(&cladatum->permissions.table);
constraint = cladatum->constraints;
while (constraint) {
e = constraint->expr;
@@ -400,7 +400,7 @@ static int roles_init(struct policydb *p)
if (!key)
goto out;
- rc = hashtab_insert(p->p_roles.table, key, role);
+ rc = hashtab_insert(&p->p_roles.table, key, role);
if (rc)
goto out;
@@ -668,7 +668,7 @@ static void symtab_hash_eval(struct symtab *s)
int i;
for (i = 0; i < SYM_NUM; i++)
- hash_eval(s[i].table, symtab_name[i]);
+ hash_eval(&s[i].table, symtab_name[i]);
}
#else
@@ -739,7 +739,7 @@ static int policydb_index(struct policydb *p)
if (!p->sym_val_to_name[i])
return -ENOMEM;
- rc = hashtab_map(p->symtab[i].table, index_f[i], p);
+ rc = hashtab_map(&p->symtab[i].table, index_f[i], p);
if (rc)
goto out;
}
@@ -760,8 +760,8 @@ void policydb_destroy(struct policydb *p)
for (i = 0; i < SYM_NUM; i++) {
cond_resched();
- hashtab_map(p->symtab[i].table, destroy_f[i], NULL);
- hashtab_destroy(p->symtab[i].table);
+ hashtab_map(&p->symtab[i].table, destroy_f[i], NULL);
+ hashtab_destroy(&p->symtab[i].table);
}
for (i = 0; i < SYM_NUM; i++)
@@ -803,8 +803,8 @@ void policydb_destroy(struct policydb *p)
cond_policydb_destroy(p);
- hashtab_map(p->role_tr, role_tr_destroy, NULL);
- hashtab_destroy(p->role_tr);
+ hashtab_map(&p->role_tr, role_tr_destroy, NULL);
+ hashtab_destroy(&p->role_tr);
for (ra = p->role_allow; ra; ra = ra->next) {
cond_resched();
@@ -813,11 +813,11 @@ void policydb_destroy(struct policydb *p)
}
kfree(lra);
- hashtab_map(p->filename_trans, filenametr_destroy, NULL);
- hashtab_destroy(p->filename_trans);
+ hashtab_map(&p->filename_trans, filenametr_destroy, NULL);
+ hashtab_destroy(&p->filename_trans);
- hashtab_map(p->range_tr, range_tr_destroy, NULL);
- hashtab_destroy(p->range_tr);
+ hashtab_map(&p->range_tr, range_tr_destroy, NULL);
+ hashtab_destroy(&p->range_tr);
if (p->type_attr_map_array) {
for (i = 0; i < p->p_types.nprim; i++)
@@ -1128,7 +1128,7 @@ static int common_read(struct policydb *p, struct hashtab *h, void *fp)
goto bad;
for (i = 0; i < nel; i++) {
- rc = perm_read(p, comdatum->permissions.table, fp);
+ rc = perm_read(p, &comdatum->permissions.table, fp);
if (rc)
goto bad;
}
@@ -1300,7 +1300,8 @@ static int class_read(struct policydb *p, struct hashtab *h, void *fp)
goto bad;
rc = -EINVAL;
- cladatum->comdatum = hashtab_search(p->p_commons.table, cladatum->comkey);
+ cladatum->comdatum = hashtab_search(&p->p_commons.table,
+ cladatum->comkey);
if (!cladatum->comdatum) {
pr_err("SELinux: unknown common %s\n",
cladatum->comkey);
@@ -1308,7 +1309,7 @@ static int class_read(struct policydb *p, struct hashtab *h, void *fp)
}
}
for (i = 0; i < nel; i++) {
- rc = perm_read(p, cladatum->permissions.table, fp);
+ rc = perm_read(p, &cladatum->permissions.table, fp);
if (rc)
goto bad;
}
@@ -1731,18 +1732,15 @@ static int policydb_bounds_sanity_check(struct policydb *p)
if (p->policyvers < POLICYDB_VERSION_BOUNDARY)
return 0;
- rc = hashtab_map(p->p_users.table,
- user_bounds_sanity_check, p);
+ rc = hashtab_map(&p->p_users.table, user_bounds_sanity_check, p);
if (rc)
return rc;
- rc = hashtab_map(p->p_roles.table,
- role_bounds_sanity_check, p);
+ rc = hashtab_map(&p->p_roles.table, role_bounds_sanity_check, p);
if (rc)
return rc;
- rc = hashtab_map(p->p_types.table,
- type_bounds_sanity_check, p);
+ rc = hashtab_map(&p->p_types.table, type_bounds_sanity_check, p);
if (rc)
return rc;
@@ -1753,7 +1751,7 @@ u16 string_to_security_class(struct policydb *p, const char *name)
{
struct class_datum *cladatum;
- cladatum = hashtab_search(p->p_classes.table, name);
+ cladatum = hashtab_search(&p->p_classes.table, name);
if (!cladatum)
return 0;
@@ -1772,11 +1770,9 @@ u32 string_to_av_perm(struct policydb *p, u16 tclass, const char *name)
cladatum = p->class_val_to_struct[tclass-1];
comdatum = cladatum->comdatum;
if (comdatum)
- perdatum = hashtab_search(comdatum->permissions.table,
- name);
+ perdatum = hashtab_search(&comdatum->permissions.table, name);
if (!perdatum)
- perdatum = hashtab_search(cladatum->permissions.table,
- name);
+ perdatum = hashtab_search(&cladatum->permissions.table, name);
if (!perdatum)
return 0;
@@ -1800,9 +1796,9 @@ static int range_read(struct policydb *p, void *fp)
nel = le32_to_cpu(buf[0]);
- p->range_tr = hashtab_create(rangetr_hash, rangetr_cmp, nel);
- if (!p->range_tr)
- return -ENOMEM;
+ rc = hashtab_init(&p->range_tr, rangetr_hash, rangetr_cmp, nel);
+ if (rc)
+ return rc;
for (i = 0; i < nel; i++) {
rc = -ENOMEM;
@@ -1845,14 +1841,14 @@ static int range_read(struct policydb *p, void *fp)
goto out;
}
- rc = hashtab_insert(p->range_tr, rt, r);
+ rc = hashtab_insert(&p->range_tr, rt, r);
if (rc)
goto out;
rt = NULL;
r = NULL;
}
- hash_eval(p->range_tr, "rangetr");
+ hash_eval(&p->range_tr, "rangetr");
rc = 0;
out:
kfree(rt);
@@ -1892,7 +1888,7 @@ static int filename_trans_read_helper_compat(struct policydb *p, void *fp)
otype = le32_to_cpu(buf[3]);
last = NULL;
- datum = hashtab_search(p->filename_trans, &key);
+ datum = hashtab_search(&p->filename_trans, &key);
while (datum) {
if (unlikely(ebitmap_get_bit(&datum->stypes, stype - 1))) {
/* conflicting/duplicate rules are ignored */
@@ -1922,7 +1918,7 @@ static int filename_trans_read_helper_compat(struct policydb *p, void *fp)
if (!ft)
goto out;
- rc = hashtab_insert(p->filename_trans, ft, datum);
+ rc = hashtab_insert(&p->filename_trans, ft, datum);
if (rc)
goto out;
name = NULL;
@@ -2010,7 +2006,7 @@ static int filename_trans_read_helper(struct policydb *p, void *fp)
ft->tclass = tclass;
ft->name = name;
- rc = hashtab_insert(p->filename_trans, ft, first);
+ rc = hashtab_insert(&p->filename_trans, ft, first);
if (rc == -EEXIST)
pr_err("SELinux: Duplicate filename transition key\n");
if (rc)
@@ -2047,10 +2043,11 @@ static int filename_trans_read(struct policydb *p, void *fp)
if (p->policyvers < POLICYDB_VERSION_COMP_FTRANS) {
p->compat_filename_trans_count = nel;
- p->filename_trans = hashtab_create(filenametr_hash,
- filenametr_cmp, (1 << 11));
- if (!p->filename_trans)
- return -ENOMEM;
+
+ rc = hashtab_init(&p->filename_trans, filenametr_hash,
+ filenametr_cmp, (1 << 11));
+ if (rc)
+ return rc;
for (i = 0; i < nel; i++) {
rc = filename_trans_read_helper_compat(p, fp);
@@ -2058,10 +2055,10 @@ static int filename_trans_read(struct policydb *p, void *fp)
return rc;
}
} else {
- p->filename_trans = hashtab_create(filenametr_hash,
- filenametr_cmp, nel);
- if (!p->filename_trans)
- return -ENOMEM;
+ rc = hashtab_init(&p->filename_trans, filenametr_hash,
+ filenametr_cmp, nel);
+ if (rc)
+ return rc;
for (i = 0; i < nel; i++) {
rc = filename_trans_read_helper(p, fp);
@@ -2069,7 +2066,7 @@ static int filename_trans_read(struct policydb *p, void *fp)
return rc;
}
}
- hash_eval(p->filename_trans, "filenametr");
+ hash_eval(&p->filename_trans, "filenametr");
return 0;
}
@@ -2512,7 +2509,7 @@ int policydb_read(struct policydb *p, void *fp)
}
for (j = 0; j < nel; j++) {
- rc = read_f[i](p, p->symtab[i].table, fp);
+ rc = read_f[i](p, &p->symtab[i].table, fp);
if (rc)
goto bad;
}
@@ -2540,8 +2537,8 @@ int policydb_read(struct policydb *p, void *fp)
goto bad;
nel = le32_to_cpu(buf[0]);
- p->role_tr = hashtab_create(role_trans_hash, role_trans_cmp, nel);
- if (!p->role_tr)
+ rc = hashtab_init(&p->role_tr, role_trans_hash, role_trans_cmp, nel);
+ if (rc)
goto bad;
for (i = 0; i < nel; i++) {
rc = -ENOMEM;
@@ -2577,7 +2574,7 @@ int policydb_read(struct policydb *p, void *fp)
!policydb_role_isvalid(p, rtd->new_role))
goto bad;
- rc = hashtab_insert(p->role_tr, rtk, rtd);
+ rc = hashtab_insert(&p->role_tr, rtk, rtd);
if (rc)
goto bad;
@@ -2820,12 +2817,12 @@ static int role_trans_write(struct policydb *p, void *fp)
__le32 buf[1];
int rc;
- buf[0] = cpu_to_le32(p->role_tr->nel);
+ buf[0] = cpu_to_le32(p->role_tr.nel);
rc = put_entry(buf, sizeof(u32), 1, fp);
if (rc)
return rc;
- return hashtab_map(p->role_tr, role_trans_write_one, &pd);
+ return hashtab_map(&p->role_tr, role_trans_write_one, &pd);
}
static int role_allow_write(struct role_allow *r, void *fp)
@@ -2919,7 +2916,7 @@ static int common_write(void *vkey, void *datum, void *ptr)
buf[0] = cpu_to_le32(len);
buf[1] = cpu_to_le32(comdatum->value);
buf[2] = cpu_to_le32(comdatum->permissions.nprim);
- buf[3] = cpu_to_le32(comdatum->permissions.table->nel);
+ buf[3] = cpu_to_le32(comdatum->permissions.table.nel);
rc = put_entry(buf, sizeof(u32), 4, fp);
if (rc)
return rc;
@@ -2928,7 +2925,7 @@ static int common_write(void *vkey, void *datum, void *ptr)
if (rc)
return rc;
- rc = hashtab_map(comdatum->permissions.table, perm_write, fp);
+ rc = hashtab_map(&comdatum->permissions.table, perm_write, fp);
if (rc)
return rc;
@@ -3027,10 +3024,7 @@ static int class_write(void *vkey, void *datum, void *ptr)
buf[1] = cpu_to_le32(len2);
buf[2] = cpu_to_le32(cladatum->value);
buf[3] = cpu_to_le32(cladatum->permissions.nprim);
- if (cladatum->permissions.table)
- buf[4] = cpu_to_le32(cladatum->permissions.table->nel);
- else
- buf[4] = 0;
+ buf[4] = cpu_to_le32(cladatum->permissions.table.nel);
buf[5] = cpu_to_le32(ncons);
rc = put_entry(buf, sizeof(u32), 6, fp);
if (rc)
@@ -3046,7 +3040,7 @@ static int class_write(void *vkey, void *datum, void *ptr)
return rc;
}
- rc = hashtab_map(cladatum->permissions.table, perm_write, fp);
+ rc = hashtab_map(&cladatum->permissions.table, perm_write, fp);
if (rc)
return rc;
@@ -3441,13 +3435,13 @@ static int range_write(struct policydb *p, void *fp)
pd.p = p;
pd.fp = fp;
- buf[0] = cpu_to_le32(p->range_tr->nel);
+ buf[0] = cpu_to_le32(p->range_tr.nel);
rc = put_entry(buf, sizeof(u32), 1, fp);
if (rc)
return rc;
/* actually write all of the entries */
- rc = hashtab_map(p->range_tr, range_write_helper, &pd);
+ rc = hashtab_map(&p->range_tr, range_write_helper, &pd);
if (rc)
return rc;
@@ -3554,15 +3548,15 @@ static int filename_trans_write(struct policydb *p, void *fp)
if (rc)
return rc;
- rc = hashtab_map(p->filename_trans,
+ rc = hashtab_map(&p->filename_trans,
filename_write_helper_compat, fp);
} else {
- buf[0] = cpu_to_le32(p->filename_trans->nel);
+ buf[0] = cpu_to_le32(p->filename_trans.nel);
rc = put_entry(buf, sizeof(u32), 1, fp);
if (rc)
return rc;
- rc = hashtab_map(p->filename_trans, filename_write_helper, fp);
+ rc = hashtab_map(&p->filename_trans, filename_write_helper, fp);
}
return rc;
}
@@ -3651,12 +3645,12 @@ int policydb_write(struct policydb *p, void *fp)
pd.p = p;
buf[0] = cpu_to_le32(p->symtab[i].nprim);
- buf[1] = cpu_to_le32(p->symtab[i].table->nel);
+ buf[1] = cpu_to_le32(p->symtab[i].table.nel);
rc = put_entry(buf, sizeof(u32), 2, fp);
if (rc)
return rc;
- rc = hashtab_map(p->symtab[i].table, write_f[i], &pd);
+ rc = hashtab_map(&p->symtab[i].table, write_f[i], &pd);
if (rc)
return rc;
}
@@ -263,13 +263,13 @@ struct policydb {
struct avtab te_avtab;
/* role transitions */
- struct hashtab *role_tr;
+ struct hashtab role_tr;
/* file transitions with the last path component */
/* quickly exclude lookups when parent ttype has no rules */
struct ebitmap filename_trans_ttypes;
/* actual set of filename_trans rules */
- struct hashtab *filename_trans;
+ struct hashtab filename_trans;
/* only used if policyvers < POLICYDB_VERSION_COMP_FTRANS */
u32 compat_filename_trans_count;
@@ -294,7 +294,7 @@ struct policydb {
struct genfs *genfs;
/* range transitions table (range_trans_key -> mls_range) */
- struct hashtab *range_tr;
+ struct hashtab range_tr;
/* type -> attribute reverse mapping */
struct ebitmap *type_attr_map_array;
@@ -482,11 +482,11 @@ static void security_dump_masked_av(struct policydb *policydb,
/* init permission_names */
if (common_dat &&
- hashtab_map(common_dat->permissions.table,
+ hashtab_map(&common_dat->permissions.table,
dump_masked_av_helper, permission_names) < 0)
goto out;
- if (hashtab_map(tclass_dat->permissions.table,
+ if (hashtab_map(&tclass_dat->permissions.table,
dump_masked_av_helper, permission_names) < 0)
goto out;
@@ -1441,7 +1441,7 @@ static int string_to_context_struct(struct policydb *pol,
*p++ = 0;
- usrdatum = hashtab_search(pol->p_users.table, scontextp);
+ usrdatum = hashtab_search(&pol->p_users.table, scontextp);
if (!usrdatum)
goto out;
@@ -1457,7 +1457,7 @@ static int string_to_context_struct(struct policydb *pol,
*p++ = 0;
- role = hashtab_search(pol->p_roles.table, scontextp);
+ role = hashtab_search(&pol->p_roles.table, scontextp);
if (!role)
goto out;
ctx->role = role->value;
@@ -1469,7 +1469,7 @@ static int string_to_context_struct(struct policydb *pol,
oldc = *p;
*p++ = 0;
- typdatum = hashtab_search(pol->p_types.table, scontextp);
+ typdatum = hashtab_search(&pol->p_types.table, scontextp);
if (!typdatum || typdatum->attribute)
goto out;
@@ -1671,7 +1671,7 @@ static void filename_compute_type(struct policydb *policydb,
ft.tclass = tclass;
ft.name = objname;
- datum = hashtab_search(policydb->filename_trans, &ft);
+ datum = hashtab_search(&policydb->filename_trans, &ft);
while (datum) {
if (ebitmap_get_bit(&datum->stypes, stype - 1)) {
newcontext->type = datum->otype;
@@ -1834,7 +1834,7 @@ static int security_compute_sid(struct selinux_state *state,
.tclass = tclass,
};
- rtd = hashtab_search(policydb->role_tr, &rtk);
+ rtd = hashtab_search(&policydb->role_tr, &rtk);
if (rtd)
newcontext.role = rtd->new_role;
}
@@ -2024,7 +2024,7 @@ static int convert_context(struct context *oldc, struct context *newc, void *p)
/* Convert the user. */
rc = -EINVAL;
- usrdatum = hashtab_search(args->newp->p_users.table,
+ usrdatum = hashtab_search(&args->newp->p_users.table,
sym_name(args->oldp,
SYM_USERS, oldc->user - 1));
if (!usrdatum)
@@ -2033,7 +2033,7 @@ static int convert_context(struct context *oldc, struct context *newc, void *p)
/* Convert the role. */
rc = -EINVAL;
- role = hashtab_search(args->newp->p_roles.table,
+ role = hashtab_search(&args->newp->p_roles.table,
sym_name(args->oldp, SYM_ROLES, oldc->role - 1));
if (!role)
goto bad;
@@ -2041,7 +2041,7 @@ static int convert_context(struct context *oldc, struct context *newc, void *p)
/* Convert the type. */
rc = -EINVAL;
- typdatum = hashtab_search(args->newp->p_types.table,
+ typdatum = hashtab_search(&args->newp->p_types.table,
sym_name(args->oldp,
SYM_TYPES, oldc->type - 1));
if (!typdatum)
@@ -2623,7 +2623,7 @@ int security_get_user_sids(struct selinux_state *state,
goto out_unlock;
rc = -EINVAL;
- user = hashtab_search(policydb->p_users.table, username);
+ user = hashtab_search(&policydb->p_users.table, username);
if (!user)
goto out_unlock;
@@ -2975,7 +2975,7 @@ static int security_preserve_bools(struct selinux_state *state,
if (rc)
goto out;
for (i = 0; i < nbools; i++) {
- booldatum = hashtab_search(policydb->p_bools.table, bnames[i]);
+ booldatum = hashtab_search(&policydb->p_bools.table, bnames[i]);
if (booldatum)
booldatum->state = bvalues[i];
}
@@ -3189,8 +3189,8 @@ int security_get_classes(struct selinux_state *state,
if (!*classes)
goto out;
- rc = hashtab_map(policydb->p_classes.table, get_classes_callback,
- *classes);
+ rc = hashtab_map(&policydb->p_classes.table, get_classes_callback,
+ *classes);
if (rc) {
int i;
for (i = 0; i < *nclasses; i++)
@@ -3226,7 +3226,7 @@ int security_get_permissions(struct selinux_state *state,
read_lock(&state->ss->policy_rwlock);
rc = -EINVAL;
- match = hashtab_search(policydb->p_classes.table, class);
+ match = hashtab_search(&policydb->p_classes.table, class);
if (!match) {
pr_err("SELinux: %s: unrecognized class %s\n",
__func__, class);
@@ -3240,14 +3240,14 @@ int security_get_permissions(struct selinux_state *state,
goto out;
if (match->comdatum) {
- rc = hashtab_map(match->comdatum->permissions.table,
- get_permissions_callback, *perms);
+ rc = hashtab_map(&match->comdatum->permissions.table,
+ get_permissions_callback, *perms);
if (rc)
goto err;
}
- rc = hashtab_map(match->permissions.table, get_permissions_callback,
- *perms);
+ rc = hashtab_map(&match->permissions.table, get_permissions_callback,
+ *perms);
if (rc)
goto err;
@@ -3365,7 +3365,7 @@ int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
case AUDIT_SUBJ_USER:
case AUDIT_OBJ_USER:
rc = -EINVAL;
- userdatum = hashtab_search(policydb->p_users.table, rulestr);
+ userdatum = hashtab_search(&policydb->p_users.table, rulestr);
if (!userdatum)
goto out;
tmprule->au_ctxt.user = userdatum->value;
@@ -3373,7 +3373,7 @@ int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
case AUDIT_SUBJ_ROLE:
case AUDIT_OBJ_ROLE:
rc = -EINVAL;
- roledatum = hashtab_search(policydb->p_roles.table, rulestr);
+ roledatum = hashtab_search(&policydb->p_roles.table, rulestr);
if (!roledatum)
goto out;
tmprule->au_ctxt.role = roledatum->value;
@@ -3381,7 +3381,7 @@ int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule)
case AUDIT_SUBJ_TYPE:
case AUDIT_OBJ_TYPE:
rc = -EINVAL;
- typedatum = hashtab_search(policydb->p_types.table, rulestr);
+ typedatum = hashtab_search(&policydb->p_types.table, rulestr);
if (!typedatum)
goto out;
tmprule->au_ctxt.type = typedatum->value;
@@ -35,10 +35,7 @@ static int symcmp(struct hashtab *h, const void *key1, const void *key2)
int symtab_init(struct symtab *s, unsigned int size)
{
- s->table = hashtab_create(symhash, symcmp, size);
- if (!s->table)
- return -ENOMEM;
s->nprim = 0;
- return 0;
+ return hashtab_init(&s->table, symhash, symcmp, size);
}
@@ -13,7 +13,7 @@
#include "hashtab.h"
struct symtab {
- struct hashtab *table; /* hash table (keyed on a string) */
+ struct hashtab table; /* hash table (keyed on a string) */
u32 nprim; /* number of primary names in table */
};
It is simpler to allocate them statically in the corresponding structure, avoiding unnecessary kmalloc() calls and pointer dereferencing. Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> --- security/selinux/ss/hashtab.c | 51 ++++--------- security/selinux/ss/hashtab.h | 13 ++-- security/selinux/ss/mls.c | 14 ++-- security/selinux/ss/policydb.c | 126 ++++++++++++++++----------------- security/selinux/ss/policydb.h | 6 +- security/selinux/ss/services.c | 44 ++++++------ security/selinux/ss/symtab.c | 5 +- security/selinux/ss/symtab.h | 2 +- 8 files changed, 116 insertions(+), 145 deletions(-)