diff options
Diffstat (limited to 'sys/security/mac_mls/mac_mls.c')
| -rw-r--r-- | sys/security/mac_mls/mac_mls.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sys/security/mac_mls/mac_mls.c b/sys/security/mac_mls/mac_mls.c index fb0c2a504e0e..c1ef756a6651 100644 --- a/sys/security/mac_mls/mac_mls.c +++ b/sys/security/mac_mls/mac_mls.c @@ -65,6 +65,8 @@ #include <sys/sem.h> #include <sys/shm.h> +#include <posix4/ksem.h> + #include <fs/devfs/devfs.h> #include <net/bpfdesc.h> @@ -1004,6 +1006,18 @@ mac_mls_create_pipe(struct ucred *cred, struct pipepair *pp, } static void +mac_mls_create_posix_sem(struct ucred *cred, struct ksem *ksemptr, + struct label *ks_label) +{ + struct mac_mls *source, *dest; + + source = SLOT(cred->cr_label); + dest = SLOT(ks_label); + + mac_mls_copy_effective(source, dest); +} + +static void mac_mls_create_socket_from_socket(struct socket *oldsocket, struct label *oldsocketlabel, struct socket *newsocket, struct label *newsocketlabel) @@ -1975,6 +1989,42 @@ mac_mls_check_pipe_write(struct ucred *cred, struct pipepair *pp, } static int +mac_mls_check_posix_sem_write(struct ucred *cred, struct ksem *ksemptr, + struct label *ks_label) +{ + struct mac_mls *subj, *obj; + + if (!mac_mls_enabled) + return (0); + + subj = SLOT(cred->cr_label); + obj = SLOT(ks_label); + + if (!mac_mls_dominate_effective(obj, subj)) + return (EACCES); + + return (0); +} + +static int +mac_mls_check_posix_sem_rdonly(struct ucred *cred, struct ksem *ksemptr, + struct label *ks_label) +{ + struct mac_mls *subj, *obj; + + if (!mac_mls_enabled) + return (0); + + subj = SLOT(cred->cr_label); + obj = SLOT(ks_label); + + if (!mac_mls_dominate_effective(subj, obj)) + return (EACCES); + + return (0); +} + +static int mac_mls_check_proc_debug(struct ucred *cred, struct proc *proc) { struct mac_mls *subj, *obj; @@ -2788,6 +2838,7 @@ static struct mac_policy_ops mac_mls_ops = .mpo_init_mount_label = mac_mls_init_label, .mpo_init_mount_fs_label = mac_mls_init_label, .mpo_init_pipe_label = mac_mls_init_label, + .mpo_init_posix_sem_label = mac_mls_init_label, .mpo_init_socket_label = mac_mls_init_label_waitcheck, .mpo_init_socket_peer_label = mac_mls_init_label_waitcheck, .mpo_init_vnode_label = mac_mls_init_label, @@ -2805,6 +2856,7 @@ static struct mac_policy_ops mac_mls_ops = .mpo_destroy_mount_label = mac_mls_destroy_label, .mpo_destroy_mount_fs_label = mac_mls_destroy_label, .mpo_destroy_pipe_label = mac_mls_destroy_label, + .mpo_destroy_posix_sem_label = mac_mls_destroy_label, .mpo_destroy_socket_label = mac_mls_destroy_label, .mpo_destroy_socket_peer_label = mac_mls_destroy_label, .mpo_destroy_vnode_label = mac_mls_destroy_label, @@ -2839,6 +2891,7 @@ static struct mac_policy_ops mac_mls_ops = .mpo_setlabel_vnode_extattr = mac_mls_setlabel_vnode_extattr, .mpo_create_mbuf_from_socket = mac_mls_create_mbuf_from_socket, .mpo_create_pipe = mac_mls_create_pipe, + .mpo_create_posix_sem = mac_mls_create_posix_sem, .mpo_create_socket = mac_mls_create_socket, .mpo_create_socket_from_socket = mac_mls_create_socket_from_socket, .mpo_relabel_pipe = mac_mls_relabel_pipe, @@ -2898,6 +2951,12 @@ static struct mac_policy_ops mac_mls_ops = .mpo_check_pipe_relabel = mac_mls_check_pipe_relabel, .mpo_check_pipe_stat = mac_mls_check_pipe_stat, .mpo_check_pipe_write = mac_mls_check_pipe_write, + .mpo_check_posix_sem_destroy = mac_mls_check_posix_sem_write, + .mpo_check_posix_sem_getvalue = mac_mls_check_posix_sem_rdonly, + .mpo_check_posix_sem_open = mac_mls_check_posix_sem_write, + .mpo_check_posix_sem_post = mac_mls_check_posix_sem_write, + .mpo_check_posix_sem_unlink = mac_mls_check_posix_sem_write, + .mpo_check_posix_sem_wait = mac_mls_check_posix_sem_write, .mpo_check_proc_debug = mac_mls_check_proc_debug, .mpo_check_proc_sched = mac_mls_check_proc_sched, .mpo_check_proc_signal = mac_mls_check_proc_signal, |