smack_sem_semop(9)

✨ NAME ✨

smack_sem_semop(9) — straight out of the Kernel API Manual — is literally the Smack checks of semaphore operations. That's the whole vibe, bestie. 💅

🌸 SYNOPSIS 🌸

int smack_sem_semop (struct kern_ipc_perm *isp , struct sembuf *sops ,
unsigned nsops , int alter );

💖 ARGUMENTS 💖

• isp — the object.
• sops — unused.
• nsops — unused.
• alter — unused.

🔥 DESCRIPTION 🔥

Treated as read and write in all cases. Like, all cases, no exceptions, periodt. ✨

Returns 0 if access is allowed, error code otherwise. So if it's a yes, you get 0; if not, you get an error code.

🦋 SEE ALSO 🦋

Kernel file: ./security/smack/smack_lsm.c. And the whole iconic squad, every last one:

• smk_fetch(9), init_inode_smack(9), init_task_smack(9), smk_copy_rules(9), smk_copy_relabel(9)
• smk_ptrace_mode(9), smk_ptrace_rule_check(9), smack_ptrace_access_check(9), smack_ptrace_traceme(9), smack_syslog(9)
• smack_sb_alloc_security(9), smack_fs_context_submount(9), smack_fs_context_dup(9), smack_fs_context_parse_param(9), smack_set_mnt_opts(9)
• smack_sb_statfs(9), smack_bprm_creds_for_exec(9), smack_inode_alloc_security(9), smk_rule_transmutes(9), smack_inode_init_security(9)
• smack_inode_link(9), smack_inode_unlink(9), smack_inode_rmdir(9), smack_inode_rename(9), smack_inode_permission(9)
• smack_inode_setattr(9), smack_inode_getattr(9), smack_inode_xattr_skipcap(9), smack_inode_setxattr(9), smack_inode_post_setxattr(9)
• smack_inode_getxattr(9), smack_inode_removexattr(9), smack_inode_set_acl(9), smack_inode_get_acl(9), smack_inode_remove_acl(9)
• smack_inode_getsecurity(9), smack_inode_listsecurity(9), smack_inode_getlsmprop(9), smack_file_alloc_security(9), smack_file_ioctl(9)
• smack_file_lock(9), smack_file_fcntl(9), smack_mmap_file(9), smack_file_set_fowner(9), smack_file_send_sigiotask(9)
• smack_file_receive(9), smack_file_open(9), smack_cred_alloc_blank(9), smack_cred_free(9), smack_cred_prepare(9)
• smack_cred_transfer(9), smack_cred_getsecid(9), smack_cred_getlsmprop(9), smack_kernel_act_as(9), smack_kernel_create_files_as(9)
• smk_curacc_on_task(9), smack_task_setpgid(9), smack_task_getpgid(9), smack_task_getsid(9), smack_current_getlsmprop_subj(9)
• smack_task_getlsmprop_obj(9), smack_task_setnice(9), smack_task_setioprio(9), smack_task_getioprio(9), smack_task_setscheduler(9)
• smack_task_getscheduler(9), smack_task_movememory(9), smack_task_kill(9), smack_task_to_inode(9), smack_sk_alloc_security(9)
• smack_sk_free_security(9), smack_sk_clone_security(9), smack_ipv4host_label(9), smack_ipv6host_label(9), smack_netlbl_add(9)
• smack_netlbl_delete(9), smk_ipv4_check(9), smk_ipv6_check(9), smk_ipv6_port_label(9), smk_ipv6_port_check(9)
• smack_inode_setsecurity(9), smack_socket_post_create(9), smack_socket_socketpair(9), smack_socket_bind(9), smack_socket_connect(9)
• smack_flags_to_may(9), smack_msg_msg_alloc_security(9), smack_of_ipc(9), smack_ipc_alloc_security(9), smk_curacc_shm(9)
• smack_shm_associate(9), smack_shm_shmctl(9), smack_shm_shmat(9), smk_curacc_sem(9), smack_sem_associate(9)
• smack_sem_semctl(9), smk_tskacc_msq(9), smk_curacc_msq(9), smack_msg_queue_associate(9), smack_msg_queue_msgctl(9)
• smack_msg_queue_msgsnd(9), smack_msg_queue_msgrcv(9), smack_ipc_permission(9), smack_ipc_getlsmprop(9), smack_d_instantiate(9)
• smack_getselfattr(9), smack_getprocattr(9), do_setattr(9), smack_setselfattr(9), smack_setprocattr(9)
• smack_unix_stream_connect(9), smack_unix_may_send(9), smack_socket_sendmsg(9), smack_from_secattr(9), smack_from_skb(9)
• smack_from_netlbl(9), smack_socket_sock_rcv_skb(9), smack_socket_getpeersec_stream(9), smack_socket_getpeersec_dgram(9), smack_inet_conn_request(9)
• smack_inet_csk_clone(9), smack_key_alloc(9), smack_key_permission(9), smack_watch_key(9), smack_post_notification(9)
• smack_audit_rule_init(9), smack_audit_rule_known(9), smack_audit_rule_match(9), smack_ismaclabel(9), smack_to_secctx(9)
• smack_secid_to_secctx(9), smack_lsmprop_to_secctx(9), smack_secctx_to_secid(9), smack_uring_override_creds(9), smack_uring_sqpoll(9)
• smack_uring_cmd(9), smack_init(9)

That's the tea 🎀 — sourced from ./security/smack, dated October 2026, and this was smack_sem_semop(9). Bye bestie, slay your semaphores! 💜