diff options
Diffstat (limited to 'security/selinux/ss')
-rw-r--r-- | security/selinux/ss/avtab.c | 40 | ||||
-rw-r--r-- | security/selinux/ss/conditional.c | 16 | ||||
-rw-r--r-- | security/selinux/ss/ebitmap.c | 14 | ||||
-rw-r--r-- | security/selinux/ss/policydb.c | 65 | ||||
-rw-r--r-- | security/selinux/ss/policydb.h | 2 | ||||
-rw-r--r-- | security/selinux/ss/services.c | 116 |
6 files changed, 156 insertions, 97 deletions
diff --git a/security/selinux/ss/avtab.c b/security/selinux/ss/avtab.c index cd10e27..916e73a 100644 --- a/security/selinux/ss/avtab.c +++ b/security/selinux/ss/avtab.c @@ -280,8 +280,8 @@ int avtab_alloc(struct avtab *h, u32 nrules) h->nel = 0; h->nslot = nslot; h->mask = mask; - printk(KERN_DEBUG "SELinux:%d avtab hash slots allocated. " - "Num of rules:%d\n", h->nslot, nrules); + printk(KERN_DEBUG "SELinux: %d avtab hash slots, %d rules.\n", + h->nslot, nrules); return 0; } @@ -345,18 +345,18 @@ int avtab_read_item(struct avtab *a, void *fp, struct policydb *pol, if (vers < POLICYDB_VERSION_AVTAB) { rc = next_entry(buf32, fp, sizeof(u32)); if (rc < 0) { - printk(KERN_ERR "security: avtab: truncated entry\n"); + printk(KERN_ERR "SELinux: avtab: truncated entry\n"); return -1; } items2 = le32_to_cpu(buf32[0]); if (items2 > ARRAY_SIZE(buf32)) { - printk(KERN_ERR "security: avtab: entry overflow\n"); + printk(KERN_ERR "SELinux: avtab: entry overflow\n"); return -1; } rc = next_entry(buf32, fp, sizeof(u32)*items2); if (rc < 0) { - printk(KERN_ERR "security: avtab: truncated entry\n"); + printk(KERN_ERR "SELinux: avtab: truncated entry\n"); return -1; } items = 0; @@ -364,19 +364,19 @@ int avtab_read_item(struct avtab *a, void *fp, struct policydb *pol, val = le32_to_cpu(buf32[items++]); key.source_type = (u16)val; if (key.source_type != val) { - printk("security: avtab: truncated source type\n"); + printk("SELinux: avtab: truncated source type\n"); return -1; } val = le32_to_cpu(buf32[items++]); key.target_type = (u16)val; if (key.target_type != val) { - printk("security: avtab: truncated target type\n"); + printk("SELinux: avtab: truncated target type\n"); return -1; } val = le32_to_cpu(buf32[items++]); key.target_class = (u16)val; if (key.target_class != val) { - printk("security: avtab: truncated target class\n"); + printk("SELinux: avtab: truncated target class\n"); return -1; } @@ -384,12 +384,12 @@ int avtab_read_item(struct avtab *a, void *fp, struct policydb *pol, enabled = (val & AVTAB_ENABLED_OLD) ? AVTAB_ENABLED : 0; if (!(val & (AVTAB_AV | AVTAB_TYPE))) { - printk("security: avtab: null entry\n"); + printk("SELinux: avtab: null entry\n"); return -1; } if ((val & AVTAB_AV) && (val & AVTAB_TYPE)) { - printk("security: avtab: entry has both access vectors and types\n"); + printk("SELinux: avtab: entry has both access vectors and types\n"); return -1; } @@ -403,7 +403,7 @@ int avtab_read_item(struct avtab *a, void *fp, struct policydb *pol, } if (items != items2) { - printk("security: avtab: entry only had %d items, expected %d\n", items2, items); + printk("SELinux: avtab: entry only had %d items, expected %d\n", items2, items); return -1; } return 0; @@ -411,7 +411,7 @@ int avtab_read_item(struct avtab *a, void *fp, struct policydb *pol, rc = next_entry(buf16, fp, sizeof(u16)*4); if (rc < 0) { - printk("security: avtab: truncated entry\n"); + printk("SELinux: avtab: truncated entry\n"); return -1; } @@ -424,7 +424,7 @@ int avtab_read_item(struct avtab *a, void *fp, struct policydb *pol, if (!policydb_type_isvalid(pol, key.source_type) || !policydb_type_isvalid(pol, key.target_type) || !policydb_class_isvalid(pol, key.target_class)) { - printk(KERN_WARNING "security: avtab: invalid type or class\n"); + printk(KERN_WARNING "SELinux: avtab: invalid type or class\n"); return -1; } @@ -435,19 +435,19 @@ int avtab_read_item(struct avtab *a, void *fp, struct policydb *pol, } if (!set || set > 1) { printk(KERN_WARNING - "security: avtab: more than one specifier\n"); + "SELinux: avtab: more than one specifier\n"); return -1; } rc = next_entry(buf32, fp, sizeof(u32)); if (rc < 0) { - printk("security: avtab: truncated entry\n"); + printk("SELinux: avtab: truncated entry\n"); return -1; } datum.data = le32_to_cpu(*buf32); if ((key.specified & AVTAB_TYPE) && !policydb_type_isvalid(pol, datum.data)) { - printk(KERN_WARNING "security: avtab: invalid type\n"); + printk(KERN_WARNING "SELinux: avtab: invalid type\n"); return -1; } return insertf(a, &key, &datum, p); @@ -468,12 +468,12 @@ int avtab_read(struct avtab *a, void *fp, struct policydb *pol) rc = next_entry(buf, fp, sizeof(u32)); if (rc < 0) { - printk(KERN_ERR "security: avtab: truncated table\n"); + printk(KERN_ERR "SELinux: avtab: truncated table\n"); goto bad; } nel = le32_to_cpu(buf[0]); if (!nel) { - printk(KERN_ERR "security: avtab: table is empty\n"); + printk(KERN_ERR "SELinux: avtab: table is empty\n"); rc = -EINVAL; goto bad; } @@ -486,9 +486,9 @@ int avtab_read(struct avtab *a, void *fp, struct policydb *pol) rc = avtab_read_item(a, fp, pol, avtab_insertf, NULL); if (rc) { if (rc == -ENOMEM) - printk(KERN_ERR "security: avtab: out of memory\n"); + printk(KERN_ERR "SELinux: avtab: out of memory\n"); else if (rc == -EEXIST) - printk(KERN_ERR "security: avtab: duplicate entry\n"); + printk(KERN_ERR "SELinux: avtab: duplicate entry\n"); else rc = -EINVAL; goto bad; diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c index 50ad85d..a996cf1 100644 --- a/security/selinux/ss/conditional.c +++ b/security/selinux/ss/conditional.c @@ -96,7 +96,7 @@ int evaluate_cond_node(struct policydb *p, struct cond_node *node) if (new_state != node->cur_state) { node->cur_state = new_state; if (new_state == -1) - printk(KERN_ERR "security: expression result was undefined - disabling all rules.\n"); + 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) { if (new_state <= 0) { @@ -276,7 +276,7 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum */ if (k->specified & AVTAB_TYPE) { if (avtab_search(&p->te_avtab, k)) { - printk("security: type rule already exists outside of a conditional."); + printk("SELinux: type rule already exists outside of a conditional."); goto err; } /* @@ -291,7 +291,7 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum node_ptr = avtab_search_node(&p->te_cond_avtab, k); if (node_ptr) { if (avtab_search_node_next(node_ptr, k->specified)) { - printk("security: too many conflicting type rules."); + printk("SELinux: too many conflicting type rules."); goto err; } found = 0; @@ -302,13 +302,13 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum } } if (!found) { - printk("security: conflicting type rules.\n"); + printk("SELinux: conflicting type rules.\n"); goto err; } } } else { if (avtab_search(&p->te_cond_avtab, k)) { - printk("security: conflicting type rules when adding type rule for true.\n"); + printk("SELinux: conflicting type rules when adding type rule for true.\n"); goto err; } } @@ -316,7 +316,7 @@ static int cond_insertf(struct avtab *a, struct avtab_key *k, struct avtab_datum node_ptr = avtab_insert_nonunique(&p->te_cond_avtab, k, d); if (!node_ptr) { - printk("security: could not insert rule."); + printk("SELinux: could not insert rule."); goto err; } @@ -376,12 +376,12 @@ static int cond_read_av_list(struct policydb *p, void *fp, struct cond_av_list * static int expr_isvalid(struct policydb *p, struct cond_expr *expr) { if (expr->expr_type <= 0 || expr->expr_type > COND_LAST) { - printk("security: conditional expressions uses unknown operator.\n"); + printk("SELinux: conditional expressions uses unknown operator.\n"); return 0; } if (expr->bool > p->p_bools.nprim) { - printk("security: conditional expressions uses unknown bool.\n"); + printk("SELinux: conditional expressions uses unknown bool.\n"); return 0; } return 1; diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c index 920b5e3..e499af4 100644 --- a/security/selinux/ss/ebitmap.c +++ b/security/selinux/ss/ebitmap.c @@ -364,7 +364,7 @@ int ebitmap_read(struct ebitmap *e, void *fp) count = le32_to_cpu(buf[2]); if (mapunit != sizeof(u64) * 8) { - printk(KERN_ERR "security: ebitmap: map size %u does not " + printk(KERN_ERR "SELinux: ebitmap: map size %u does not " "match my size %Zd (high bit was %d)\n", mapunit, sizeof(u64) * 8, e->highbit); goto bad; @@ -382,19 +382,19 @@ int ebitmap_read(struct ebitmap *e, void *fp) for (i = 0; i < count; i++) { rc = next_entry(&startbit, fp, sizeof(u32)); if (rc < 0) { - printk(KERN_ERR "security: ebitmap: truncated map\n"); + printk(KERN_ERR "SELinux: ebitmap: truncated map\n"); goto bad; } startbit = le32_to_cpu(startbit); if (startbit & (mapunit - 1)) { - printk(KERN_ERR "security: ebitmap start bit (%d) is " + printk(KERN_ERR "SELinux: ebitmap start bit (%d) is " "not a multiple of the map unit size (%u)\n", startbit, mapunit); goto bad; } if (startbit > e->highbit - mapunit) { - printk(KERN_ERR "security: ebitmap start bit (%d) is " + printk(KERN_ERR "SELinux: ebitmap start bit (%d) is " "beyond the end of the bitmap (%u)\n", startbit, (e->highbit - mapunit)); goto bad; @@ -405,7 +405,7 @@ int ebitmap_read(struct ebitmap *e, void *fp) tmp = kzalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) { printk(KERN_ERR - "security: ebitmap: out of memory\n"); + "SELinux: ebitmap: out of memory\n"); rc = -ENOMEM; goto bad; } @@ -418,7 +418,7 @@ int ebitmap_read(struct ebitmap *e, void *fp) } n = tmp; } else if (startbit <= n->startbit) { - printk(KERN_ERR "security: ebitmap: start bit %d" + printk(KERN_ERR "SELinux: ebitmap: start bit %d" " comes after start bit %d\n", startbit, n->startbit); goto bad; @@ -426,7 +426,7 @@ int ebitmap_read(struct ebitmap *e, void *fp) rc = next_entry(&map, fp, sizeof(u64)); if (rc < 0) { - printk(KERN_ERR "security: ebitmap: truncated map\n"); + printk(KERN_ERR "SELinux: ebitmap: truncated map\n"); goto bad; } map = le64_to_cpu(map); diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index bd7d6a0..6bdb0ff 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -111,6 +111,11 @@ static struct policydb_compat_info policydb_compat[] = { .version = POLICYDB_VERSION_POLCAP, .sym_num = SYM_NUM, .ocon_num = OCON_NUM, + }, + { + .version = POLICYDB_VERSION_PERMISSIVE, + .sym_num = SYM_NUM, + .ocon_num = OCON_NUM, } }; @@ -194,6 +199,7 @@ static int policydb_init(struct policydb *p) goto out_free_symtab; ebitmap_init(&p->policycaps); + ebitmap_init(&p->permissive_map); out: return rc; @@ -401,14 +407,14 @@ static int policydb_index_others(struct policydb *p) { int i, rc = 0; - printk(KERN_DEBUG "security: %d users, %d roles, %d types, %d bools", + printk(KERN_DEBUG "SELinux: %d users, %d roles, %d types, %d bools", p->p_users.nprim, p->p_roles.nprim, p->p_types.nprim, p->p_bools.nprim); if (selinux_mls_enabled) printk(", %d sens, %d cats", p->p_levels.nprim, p->p_cats.nprim); printk("\n"); - printk(KERN_DEBUG "security: %d classes, %d rules\n", + printk(KERN_DEBUG "SELinux: %d classes, %d rules\n", p->p_classes.nprim, p->te_avtab.nel); #ifdef DEBUG_HASHES @@ -687,6 +693,7 @@ void policydb_destroy(struct policydb *p) kfree(p->type_attr_map); kfree(p->undefined_perms); ebitmap_destroy(&p->policycaps); + ebitmap_destroy(&p->permissive_map); return; } @@ -702,20 +709,20 @@ int policydb_load_isids(struct policydb *p, struct sidtab *s) rc = sidtab_init(s); if (rc) { - printk(KERN_ERR "security: out of memory on SID table init\n"); + printk(KERN_ERR "SELinux: out of memory on SID table init\n"); goto out; } head = p->ocontexts[OCON_ISID]; for (c = head; c; c = c->next) { if (!c->context[0].user) { - printk(KERN_ERR "security: SID %s was never " + printk(KERN_ERR "SELinux: SID %s was never " "defined.\n", c->u.name); rc = -EINVAL; goto out; } if (sidtab_insert(s, c->sid[0], &c->context[0])) { - printk(KERN_ERR "security: unable to load initial " + printk(KERN_ERR "SELinux: unable to load initial " "SID %s.\n", c->u.name); rc = -EINVAL; goto out; @@ -809,13 +816,13 @@ static int mls_read_range_helper(struct mls_range *r, void *fp) items = le32_to_cpu(buf[0]); if (items > ARRAY_SIZE(buf)) { - printk(KERN_ERR "security: mls: range overflow\n"); + printk(KERN_ERR "SELinux: mls: range overflow\n"); rc = -EINVAL; goto out; } rc = next_entry(buf, fp, sizeof(u32) * items); if (rc < 0) { - printk(KERN_ERR "security: mls: truncated range\n"); + printk(KERN_ERR "SELinux: mls: truncated range\n"); goto out; } r->level[0].sens = le32_to_cpu(buf[0]); @@ -826,21 +833,21 @@ static int mls_read_range_helper(struct mls_range *r, void *fp) rc = ebitmap_read(&r->level[0].cat, fp); if (rc) { - printk(KERN_ERR "security: mls: error reading low " + printk(KERN_ERR "SELinux: mls: error reading low " "categories\n"); goto out; } if (items > 1) { rc = ebitmap_read(&r->level[1].cat, fp); if (rc) { - printk(KERN_ERR "security: mls: error reading high " + printk(KERN_ERR "SELinux: mls: error reading high " "categories\n"); goto bad_high; } } else { rc = ebitmap_cpy(&r->level[1].cat, &r->level[0].cat); if (rc) { - printk(KERN_ERR "security: mls: out of memory\n"); + printk(KERN_ERR "SELinux: mls: out of memory\n"); goto bad_high; } } @@ -866,7 +873,7 @@ static int context_read_and_validate(struct context *c, rc = next_entry(buf, fp, sizeof buf); if (rc < 0) { - printk(KERN_ERR "security: context truncated\n"); + printk(KERN_ERR "SELinux: context truncated\n"); goto out; } c->user = le32_to_cpu(buf[0]); @@ -874,7 +881,7 @@ static int context_read_and_validate(struct context *c, c->type = le32_to_cpu(buf[2]); if (p->policyvers >= POLICYDB_VERSION_MLS) { if (mls_read_range_helper(&c->range, fp)) { - printk(KERN_ERR "security: error reading MLS range of " + printk(KERN_ERR "SELinux: error reading MLS range of " "context\n"); rc = -EINVAL; goto out; @@ -882,7 +889,7 @@ static int context_read_and_validate(struct context *c, } if (!policydb_context_isvalid(p, c)) { - printk(KERN_ERR "security: invalid security context\n"); + printk(KERN_ERR "SELinux: invalid security context\n"); context_destroy(c); rc = -EINVAL; } @@ -1128,7 +1135,7 @@ static int class_read(struct policydb *p, struct hashtab *h, void *fp) cladatum->comdatum = hashtab_search(p->p_commons.table, cladatum->comkey); if (!cladatum->comdatum) { - printk(KERN_ERR "security: unknown common %s\n", + printk(KERN_ERR "SELinux: unknown common %s\n", cladatum->comkey); rc = -EINVAL; goto bad; @@ -1283,13 +1290,13 @@ static int mls_read_level(struct mls_level *lp, void *fp) rc = next_entry(buf, fp, sizeof buf); if (rc < 0) { - printk(KERN_ERR "security: mls: truncated level\n"); + printk(KERN_ERR "SELinux: mls: truncated level\n"); goto bad; } lp->sens = le32_to_cpu(buf[0]); if (ebitmap_read(&lp->cat, fp)) { - printk(KERN_ERR "security: mls: error reading level " + printk(KERN_ERR "SELinux: mls: error reading level " "categories\n"); goto bad; } @@ -1491,7 +1498,7 @@ int policydb_read(struct policydb *p, void *fp) goto bad; if (le32_to_cpu(buf[0]) != POLICYDB_MAGIC) { - printk(KERN_ERR "security: policydb magic number 0x%x does " + printk(KERN_ERR "SELinux: policydb magic number 0x%x does " "not match expected magic number 0x%x\n", le32_to_cpu(buf[0]), POLICYDB_MAGIC); goto bad; @@ -1499,27 +1506,27 @@ int policydb_read(struct policydb *p, void *fp) len = le32_to_cpu(buf[1]); if (len != strlen(POLICYDB_STRING)) { - printk(KERN_ERR "security: policydb string length %d does not " + printk(KERN_ERR "SELinux: policydb string length %d does not " "match expected length %Zu\n", len, strlen(POLICYDB_STRING)); goto bad; } policydb_str = kmalloc(len + 1,GFP_KERNEL); if (!policydb_str) { - printk(KERN_ERR "security: unable to allocate memory for policydb " + printk(KERN_ERR "SELinux: unable to allocate memory for policydb " "string of length %d\n", len); rc = -ENOMEM; goto bad; } rc = next_entry(policydb_str, fp, len); if (rc < 0) { - printk(KERN_ERR "security: truncated policydb string identifier\n"); + printk(KERN_ERR "SELinux: truncated policydb string identifier\n"); kfree(policydb_str); goto bad; } policydb_str[len] = 0; if (strcmp(policydb_str, POLICYDB_STRING)) { - printk(KERN_ERR "security: policydb string %s does not match " + printk(KERN_ERR "SELinux: policydb string %s does not match " "my string %s\n", policydb_str, POLICYDB_STRING); kfree(policydb_str); goto bad; @@ -1536,7 +1543,7 @@ int policydb_read(struct policydb *p, void *fp) p->policyvers = le32_to_cpu(buf[0]); if (p->policyvers < POLICYDB_VERSION_MIN || p->policyvers > POLICYDB_VERSION_MAX) { - printk(KERN_ERR "security: policydb version %d does not match " + printk(KERN_ERR "SELinux: policydb version %d does not match " "my version range %d-%d\n", le32_to_cpu(buf[0]), POLICYDB_VERSION_MIN, POLICYDB_VERSION_MAX); goto bad; @@ -1570,16 +1577,20 @@ int policydb_read(struct policydb *p, void *fp) ebitmap_read(&p->policycaps, fp) != 0) goto bad; + if (p->policyvers >= POLICYDB_VERSION_PERMISSIVE && + ebitmap_read(&p->permissive_map, fp) != 0) + goto bad; + info = policydb_lookup_compat(p->policyvers); if (!info) { - printk(KERN_ERR "security: unable to find policy compat info " + printk(KERN_ERR "SELinux: unable to find policy compat info " "for version %d\n", p->policyvers); goto bad; } if (le32_to_cpu(buf[2]) != info->sym_num || le32_to_cpu(buf[3]) != info->ocon_num) { - printk(KERN_ERR "security: policydb table sizes (%d,%d) do " + printk(KERN_ERR "SELinux: policydb table sizes (%d,%d) do " "not match mine (%d,%d)\n", le32_to_cpu(buf[2]), le32_to_cpu(buf[3]), info->sym_num, info->ocon_num); @@ -1823,7 +1834,7 @@ int policydb_read(struct policydb *p, void *fp) for (genfs_p = NULL, genfs = p->genfs; genfs; genfs_p = genfs, genfs = genfs->next) { if (strcmp(newgenfs->fstype, genfs->fstype) == 0) { - printk(KERN_ERR "security: dup genfs " + printk(KERN_ERR "SELinux: dup genfs " "fstype %s\n", newgenfs->fstype); kfree(newgenfs->fstype); kfree(newgenfs); @@ -1873,7 +1884,7 @@ int policydb_read(struct policydb *p, void *fp) if (!strcmp(newc->u.name, c->u.name) && (!c->v.sclass || !newc->v.sclass || newc->v.sclass == c->v.sclass)) { - printk(KERN_ERR "security: dup genfs " + printk(KERN_ERR "SELinux: dup genfs " "entry (%s,%s)\n", newgenfs->fstype, c->u.name); goto bad_newc; @@ -1931,7 +1942,7 @@ int policydb_read(struct policydb *p, void *fp) if (rc) goto bad; if (!mls_range_isvalid(p, &rt->target_range)) { - printk(KERN_WARNING "security: rangetrans: invalid range\n"); + printk(KERN_WARNING "SELinux: rangetrans: invalid range\n"); goto bad; } lrt = rt; diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h index c4ce996..ba593a3 100644 --- a/security/selinux/ss/policydb.h +++ b/security/selinux/ss/policydb.h @@ -243,6 +243,8 @@ struct policydb { struct ebitmap policycaps; + struct ebitmap permissive_map; + unsigned int policyvers; unsigned int reject_unknown : 1; diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index 3f2bad2..b341b8f 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c @@ -40,6 +40,7 @@ #include <linux/sched.h> #include <linux/audit.h> #include <linux/mutex.h> +#include <linux/selinux.h> #include <net/netlabel.h> #include "flask.h" @@ -56,11 +57,13 @@ #include "netlabel.h" #include "xfrm.h" #include "ebitmap.h" +#include "audit.h" extern void selnl_notify_policyload(u32 seqno); unsigned int policydb_loaded_version; int selinux_policycap_netpeer; +int selinux_policycap_openperm; /* * This is declared in avc.c @@ -412,10 +415,35 @@ static int context_struct_compute_av(struct context *scontext, return 0; inval_class: - printk(KERN_ERR "%s: unrecognized class %d\n", __FUNCTION__, tclass); + printk(KERN_ERR "%s: unrecognized class %d\n", __func__, tclass); return -EINVAL; } +/* + * Given a sid find if the type has the permissive flag set + */ +int security_permissive_sid(u32 sid) +{ + struct context *context; + u32 type; + int rc; + + POLICY_RDLOCK; + + context = sidtab_search(&sidtab, sid); + BUG_ON(!context); + + type = context->type; + /* + * we are intentionally using type here, not type-1, the 0th bit may + * someday indicate that we are globally setting permissive in policy. + */ + rc = ebitmap_get_bit(&policydb.permissive_map, type); + + POLICY_RDUNLOCK; + return rc; +} + static int security_validtrans_handle_fail(struct context *ocontext, struct context *ncontext, struct context *tcontext, @@ -1096,7 +1124,7 @@ static int validate_classes(struct policydb *p) continue; if (i > p->p_classes.nprim) { printk(KERN_INFO - "security: class %s not defined in policy\n", + "SELinux: class %s not defined in policy\n", def_class); if (p->reject_unknown) return -EINVAL; @@ -1107,7 +1135,7 @@ static int validate_classes(struct policydb *p) pol_class = p->p_class_val_to_name[i-1]; if (strcmp(pol_class, def_class)) { printk(KERN_ERR - "security: class %d is incorrect, found %s but should be %s\n", + "SELinux: class %d is incorrect, found %s but should be %s\n", i, pol_class, def_class); return -EINVAL; } @@ -1125,7 +1153,7 @@ static int validate_classes(struct policydb *p) nprim = 1 << (perms->nprim - 1); if (perm_val > nprim) { printk(KERN_INFO - "security: permission %s in class %s not defined in policy\n", + "SELinux: permission %s in class %s not defined in policy\n", def_perm, pol_class); if (p->reject_unknown) return -EINVAL; @@ -1136,14 +1164,14 @@ static int validate_classes(struct policydb *p) perdatum = hashtab_search(perms->table, def_perm); if (perdatum == NULL) { printk(KERN_ERR - "security: permission %s in class %s not found in policy, bad policy\n", + "SELinux: permission %s in class %s not found in policy, bad policy\n", def_perm, pol_class); return -EINVAL; } pol_val = 1 << (perdatum->value - 1); if (pol_val != perm_val) { printk(KERN_ERR - "security: permission %s in class %s has incorrect value\n", + "SELinux: permission %s in class %s has incorrect value\n", def_perm, pol_class); return -EINVAL; } @@ -1157,7 +1185,7 @@ static int validate_classes(struct policydb *p) BUG_ON(!cladatum); if (!cladatum->comdatum) { printk(KERN_ERR - "security: class %s should have an inherits clause but does not\n", + "SELinux: class %s should have an inherits clause but does not\n", pol_class); return -EINVAL; } @@ -1172,7 +1200,7 @@ static int validate_classes(struct policydb *p) def_perm = kdefs->av_inherit[i].common_pts[j]; if (j >= perms->nprim) { printk(KERN_INFO - "security: permission %s in class %s not defined in policy\n", + "SELinux: permission %s in class %s not defined in policy\n", def_perm, pol_class); if (p->reject_unknown) return -EINVAL; @@ -1183,13 +1211,13 @@ static int validate_classes(struct policydb *p) perdatum = hashtab_search(perms->table, def_perm); if (perdatum == NULL) { printk(KERN_ERR - "security: permission %s in class %s not found in policy, bad policy\n", + "SELinux: permission %s in class %s not found in policy, bad policy\n", def_perm, pol_class); return -EINVAL; } if (perdatum->value != j + 1) { printk(KERN_ERR - "security: permission %s in class %s has incorrect value\n", + "SELinux: permission %s in class %s has incorrect value\n", def_perm, pol_class); return -EINVAL; } @@ -1219,7 +1247,7 @@ static inline int convert_context_handle_invalid_context(struct context *context u32 len; context_struct_to_string(context, &s, &len); - printk(KERN_ERR "security: context %s is invalid\n", s); + printk(KERN_ERR "SELinux: context %s is invalid\n", s); kfree(s); } return rc; @@ -1299,7 +1327,7 @@ out: bad: context_struct_to_string(&oldc, &s, &len); context_destroy(&oldc); - printk(KERN_ERR "security: invalidating context %s\n", s); + printk(KERN_ERR "SELinux: invalidating context %s\n", s); kfree(s); goto out; } @@ -1308,6 +1336,8 @@ static void security_load_policycaps(void) { selinux_policycap_netpeer = ebitmap_get_bit(&policydb.policycaps, POLICYDB_CAPABILITY_NETPEER); + selinux_policycap_openperm = ebitmap_get_bit(&policydb.policycaps, + POLICYDB_CAPABILITY_OPENPERM); } extern void selinux_complete_init(void); @@ -1350,7 +1380,7 @@ int security_load_policy(void *data, size_t len) /* Verify that the kernel defined classes are correct. */ if (validate_classes(&policydb)) { printk(KERN_ERR - "security: the definition of a class is incorrect\n"); + "SELinux: the definition of a class is incorrect\n"); LOAD_UNLOCK; sidtab_destroy(&sidtab); policydb_destroy(&policydb); @@ -1384,14 +1414,14 @@ int security_load_policy(void *data, size_t len) /* Verify that the kernel defined classes are correct. */ if (validate_classes(&newpolicydb)) { printk(KERN_ERR - "security: the definition of a class is incorrect\n"); + "SELinux: the definition of a class is incorrect\n"); rc = -EINVAL; goto err; } rc = security_preserve_bools(&newpolicydb); if (rc) { - printk(KERN_ERR "security: unable to preserve booleans\n"); + printk(KERN_ERR "SELinux: unable to preserve booleans\n"); goto err; } @@ -1443,17 +1473,11 @@ err: /** * security_port_sid - Obtain the SID for a port. - * @domain: communication domain aka address family - * @type: socket type * @protocol: protocol number * @port: port number * @out_sid: security identifier */ -int security_port_sid(u16 domain, - u16 type, - u8 protocol, - u16 port, - u32 *out_sid) +int security_port_sid(u8 protocol, u16 port, u32 *out_sid) { struct ocontext *c; int rc = 0; @@ -2203,7 +2227,7 @@ int security_get_permissions(char *class, char ***perms, int *nperms) match = hashtab_search(policydb.p_classes.table, class); if (!match) { printk(KERN_ERR "%s: unrecognized class %s\n", - __FUNCTION__, class); + __func__, class); rc = -EINVAL; goto out; } @@ -2273,21 +2297,23 @@ struct selinux_audit_rule { struct context au_ctxt; }; -void selinux_audit_rule_free(struct selinux_audit_rule *rule) +void selinux_audit_rule_free(void *vrule) { + struct selinux_audit_rule *rule = vrule; + if (rule) { context_destroy(&rule->au_ctxt); kfree(rule); } } -int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, - struct selinux_audit_rule **rule) +int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, void **vrule) { struct selinux_audit_rule *tmprule; struct role_datum *roledatum; struct type_datum *typedatum; struct user_datum *userdatum; + struct selinux_audit_rule **rule = (struct selinux_audit_rule **)vrule; int rc = 0; *rule = NULL; @@ -2374,12 +2400,37 @@ int selinux_audit_rule_init(u32 field, u32 op, char *rulestr, return rc; } -int selinux_audit_rule_match(u32 sid, u32 field, u32 op, - struct selinux_audit_rule *rule, +/* Check to see if the rule contains any selinux fields */ +int selinux_audit_rule_known(struct audit_krule *rule) +{ + int i; + + for (i = 0; i < rule->field_count; i++) { + struct audit_field *f = &rule->fields[i]; + switch (f->type) { + case AUDIT_SUBJ_USER: + case AUDIT_SUBJ_ROLE: + case AUDIT_SUBJ_TYPE: + case AUDIT_SUBJ_SEN: + case AUDIT_SUBJ_CLR: + case AUDIT_OBJ_USER: + case AUDIT_OBJ_ROLE: + case AUDIT_OBJ_TYPE: + case AUDIT_OBJ_LEV_LOW: + case AUDIT_OBJ_LEV_HIGH: + return 1; + } + } + + return 0; +} + +int selinux_audit_rule_match(u32 sid, u32 field, u32 op, void *vrule, struct audit_context *actx) { struct context *ctxt; struct mls_level *level; + struct selinux_audit_rule *rule = vrule; int match = 0; if (!rule) { @@ -2486,7 +2537,7 @@ out: return match; } -static int (*aurule_callback)(void) = NULL; +static int (*aurule_callback)(void) = audit_update_lsm_rules; static int aurule_avc_callback(u32 event, u32 ssid, u32 tsid, u16 class, u32 perms, u32 *retained) @@ -2511,11 +2562,6 @@ static int __init aurule_init(void) } __initcall(aurule_init); -void selinux_audit_set_callback(int (*callback)(void)) -{ - aurule_callback = callback; -} - #ifdef CONFIG_NETLABEL /** * security_netlbl_cache_add - Add an entry to the NetLabel cache @@ -2651,7 +2697,7 @@ int security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr) goto netlbl_sid_to_secattr_failure; secattr->domain = kstrdup(policydb.p_type_val_to_name[ctx->type - 1], GFP_ATOMIC); - secattr->flags |= NETLBL_SECATTR_DOMAIN; + secattr->flags |= NETLBL_SECATTR_DOMAIN_CPY; mls_export_netlbl_lvl(ctx, secattr); rc = mls_export_netlbl_cat(ctx, secattr); if (rc != 0) |