diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/lsm_audit.c | 5 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 25 | ||||
| -rw-r--r-- | security/selinux/include/classmap.h | 2 | ||||
| -rw-r--r-- | security/selinux/include/security.h | 2 | ||||
| -rw-r--r-- | security/selinux/ss/services.c | 41 |
5 files changed, 75 insertions, 0 deletions
diff --git a/security/lsm_audit.c b/security/lsm_audit.c index c22c99fae06a..28d4c3a528ab 100644 --- a/security/lsm_audit.c +++ b/security/lsm_audit.c @@ -421,6 +421,11 @@ static void dump_common_audit_data(struct audit_buffer *ab, a->u.ibpkey->pkey, &sbn_pfx); break; } + case LSM_AUDIT_DATA_IBENDPORT: + audit_log_format(ab, " device=%s port_num=%u", + a->u.ibendport->dev_name, + a->u.ibendport->port); + break; } /* switch (a->type) */ } diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index b59255f86274..91ec46dd34d9 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -6169,6 +6169,29 @@ static int selinux_ib_pkey_access(void *ib_sec, u64 subnet_prefix, u16 pkey_val) INFINIBAND_PKEY__ACCESS, &ad); } +static int selinux_ib_endport_manage_subnet(void *ib_sec, const char *dev_name, + u8 port_num) +{ + struct common_audit_data ad; + int err; + u32 sid = 0; + struct ib_security_struct *sec = ib_sec; + struct lsm_ibendport_audit ibendport; + + err = security_ib_endport_sid(dev_name, port_num, &sid); + + if (err) + return err; + + ad.type = LSM_AUDIT_DATA_IBENDPORT; + strncpy(ibendport.dev_name, dev_name, sizeof(ibendport.dev_name)); + ibendport.port = port_num; + ad.u.ibendport = &ibendport; + return avc_has_perm(sec->sid, sid, + SECCLASS_INFINIBAND_ENDPORT, + INFINIBAND_ENDPORT__MANAGE_SUBNET, &ad); +} + static int selinux_ib_alloc_security(void **ib_sec) { struct ib_security_struct *sec; @@ -6374,6 +6397,8 @@ static struct security_hook_list selinux_hooks[] __lsm_ro_after_init = { LSM_HOOK_INIT(tun_dev_open, selinux_tun_dev_open), #ifdef CONFIG_SECURITY_INFINIBAND LSM_HOOK_INIT(ib_pkey_access, selinux_ib_pkey_access), + LSM_HOOK_INIT(ib_endport_manage_subnet, + selinux_ib_endport_manage_subnet), LSM_HOOK_INIT(ib_alloc_security, selinux_ib_alloc_security), LSM_HOOK_INIT(ib_free_security, selinux_ib_free_security), #endif diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h index 0fec1c505f84..b9fe3434b036 100644 --- a/security/selinux/include/classmap.h +++ b/security/selinux/include/classmap.h @@ -233,6 +233,8 @@ struct security_class_mapping secclass_map[] = { { COMMON_SOCK_PERMS, NULL } }, { "infiniband_pkey", { "access", NULL } }, + { "infiniband_endport", + { "manage_subnet", NULL } }, { NULL } }; diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h index 592c014e369c..e91f08c16c0b 100644 --- a/security/selinux/include/security.h +++ b/security/selinux/include/security.h @@ -183,6 +183,8 @@ int security_port_sid(u8 protocol, u16 port, u32 *out_sid); int security_ib_pkey_sid(u64 subnet_prefix, u16 pkey_num, u32 *out_sid); +int security_ib_endport_sid(const char *dev_name, u8 port_num, u32 *out_sid); + int security_netif_sid(char *name, u32 *if_sid); int security_node_sid(u16 domain, void *addr, u32 addrlen, diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index 02257d90adc9..202166612b80 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c @@ -2273,6 +2273,47 @@ out: } /** + * security_ib_endport_sid - Obtain the SID for a subnet management interface. + * @dev_name: device name + * @port: port number + * @out_sid: security identifier + */ +int security_ib_endport_sid(const char *dev_name, u8 port_num, u32 *out_sid) +{ + struct ocontext *c; + int rc = 0; + + read_lock(&policy_rwlock); + + c = policydb.ocontexts[OCON_IBENDPORT]; + while (c) { + if (c->u.ibendport.port == port_num && + !strncmp(c->u.ibendport.dev_name, + dev_name, + IB_DEVICE_NAME_MAX)) + break; + + c = c->next; + } + + if (c) { + if (!c->sid[0]) { + rc = sidtab_context_to_sid(&sidtab, + &c->context[0], + &c->sid[0]); + if (rc) + goto out; + } + *out_sid = c->sid[0]; + } else + *out_sid = SECINITSID_UNLABELED; + +out: + read_unlock(&policy_rwlock); + return rc; +} + +/** * security_netif_sid - Obtain the SID for a network interface. * @name: interface name * @if_sid: interface SID |