services.c (7420ed23a4f77480b5b7b3245e5da30dd24b7575) services.c (99f59ed073d3c1b890690064ab285a201dea2e35)
1/*
2 * Implementation of the security services.
3 *
4 * Authors : Stephen Smalley, <sds@epoch.ncsc.mil>
5 * James Morris <jmorris@redhat.com>
6 *
7 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
8 *

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2418 netlbl_secattr_destroy(&secattr, 0);
2419
2420netlbl_socket_setsid_return:
2421 POLICY_RDUNLOCK;
2422 return rc;
2423}
2424
2425/**
1/*
2 * Implementation of the security services.
3 *
4 * Authors : Stephen Smalley, <sds@epoch.ncsc.mil>
5 * James Morris <jmorris@redhat.com>
6 *
7 * Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
8 *

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2418 netlbl_secattr_destroy(&secattr, 0);
2419
2420netlbl_socket_setsid_return:
2421 POLICY_RDUNLOCK;
2422 return rc;
2423}
2424
2425/**
2426 * selinux_netlbl_sk_security_init - Setup the NetLabel fields
2427 * @ssec: the sk_security_struct
2428 * @family: the socket family
2429 *
2430 * Description:
2431 * Called when a new sk_security_struct is allocated to initialize the NetLabel
2432 * fields.
2433 *
2434 */
2435void selinux_netlbl_sk_security_init(struct sk_security_struct *ssec,
2436 int family)
2437{
2438 if (family == PF_INET)
2439 ssec->nlbl_state = NLBL_REQUIRE;
2440 else
2441 ssec->nlbl_state = NLBL_UNSET;
2442}
2443
2444/**
2445 * selinux_netlbl_sk_clone_security - Copy the NetLabel fields
2446 * @ssec: the original sk_security_struct
2447 * @newssec: the cloned sk_security_struct
2448 *
2449 * Description:
2450 * Clone the NetLabel specific sk_security_struct fields from @ssec to
2451 * @newssec.
2452 *
2453 */
2454void selinux_netlbl_sk_clone_security(struct sk_security_struct *ssec,
2455 struct sk_security_struct *newssec)
2456{
2457 newssec->sclass = ssec->sclass;
2458 if (ssec->nlbl_state != NLBL_UNSET)
2459 newssec->nlbl_state = NLBL_REQUIRE;
2460 else
2461 newssec->nlbl_state = NLBL_UNSET;
2462}
2463
2464/**
2426 * selinux_netlbl_socket_post_create - Label a socket using NetLabel
2427 * @sock: the socket to label
2428 * @sock_family: the socket family
2429 * @sid: the SID to use
2430 *
2431 * Description:
2432 * Attempt to label a socket using the NetLabel mechanism using the given
2433 * SID. Returns zero values on success, negative values on failure.
2434 *
2435 */
2436int selinux_netlbl_socket_post_create(struct socket *sock,
2437 int sock_family,
2438 u32 sid)
2439{
2440 struct inode_security_struct *isec = SOCK_INODE(sock)->i_security;
2441 struct sk_security_struct *sksec = sock->sk->sk_security;
2442
2465 * selinux_netlbl_socket_post_create - Label a socket using NetLabel
2466 * @sock: the socket to label
2467 * @sock_family: the socket family
2468 * @sid: the SID to use
2469 *
2470 * Description:
2471 * Attempt to label a socket using the NetLabel mechanism using the given
2472 * SID. Returns zero values on success, negative values on failure.
2473 *
2474 */
2475int selinux_netlbl_socket_post_create(struct socket *sock,
2476 int sock_family,
2477 u32 sid)
2478{
2479 struct inode_security_struct *isec = SOCK_INODE(sock)->i_security;
2480 struct sk_security_struct *sksec = sock->sk->sk_security;
2481
2482 sksec->sclass = isec->sclass;
2483
2443 if (sock_family != PF_INET)
2444 return 0;
2445
2484 if (sock_family != PF_INET)
2485 return 0;
2486
2446 sksec->sclass = isec->sclass;
2447 sksec->nlbl_state = NLBL_REQUIRE;
2448 return selinux_netlbl_socket_setsid(sock, sid);
2449}
2450
2451/**
2452 * selinux_netlbl_sock_graft - Netlabel the new socket
2453 * @sk: the new connection
2454 * @sock: the new socket
2455 *
2456 * Description:
2457 * The connection represented by @sk is being grafted onto @sock so set the
2458 * socket's NetLabel to match the SID of @sk.
2459 *
2460 */
2461void selinux_netlbl_sock_graft(struct sock *sk, struct socket *sock)
2462{
2463 struct inode_security_struct *isec = SOCK_INODE(sock)->i_security;
2464 struct sk_security_struct *sksec = sk->sk_security;
2465
2487 sksec->nlbl_state = NLBL_REQUIRE;
2488 return selinux_netlbl_socket_setsid(sock, sid);
2489}
2490
2491/**
2492 * selinux_netlbl_sock_graft - Netlabel the new socket
2493 * @sk: the new connection
2494 * @sock: the new socket
2495 *
2496 * Description:
2497 * The connection represented by @sk is being grafted onto @sock so set the
2498 * socket's NetLabel to match the SID of @sk.
2499 *
2500 */
2501void selinux_netlbl_sock_graft(struct sock *sk, struct socket *sock)
2502{
2503 struct inode_security_struct *isec = SOCK_INODE(sock)->i_security;
2504 struct sk_security_struct *sksec = sk->sk_security;
2505
2506 sksec->sclass = isec->sclass;
2507
2466 if (sk->sk_family != PF_INET)
2467 return;
2468
2469 sksec->nlbl_state = NLBL_REQUIRE;
2470 sksec->peer_sid = sksec->sid;
2508 if (sk->sk_family != PF_INET)
2509 return;
2510
2511 sksec->nlbl_state = NLBL_REQUIRE;
2512 sksec->peer_sid = sksec->sid;
2471 sksec->sclass = isec->sclass;
2472
2473 /* Try to set the NetLabel on the socket to save time later, if we fail
2474 * here we will pick up the pieces in later calls to
2475 * selinux_netlbl_inode_permission(). */
2476 selinux_netlbl_socket_setsid(sock, sksec->sid);
2477}
2478
2479/**

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2514 /* Try to set the NetLabel on the socket to save time later, if we fail
2515 * here we will pick up the pieces in later calls to
2516 * selinux_netlbl_inode_permission(). */
2517 selinux_netlbl_socket_setsid(sock, sksec->sid);
2518}
2519
2520/**

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