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20a3465b97
This commit includes the following changes: * executor: add a new syz_btf_id_by_name psuedo-syscall * sys/linux: add descriptions for BPF LSM subsystem * sys/linux: add instructions on how to dump vmlinux and install bpftool * sys/linux/test: add tests for the new psuedo-syscall * pkg/host: add support detection for the new psuedo-syscall * pkg/runtest: skip the coverage test when invoking the new psuedo-syscall Update #533.
29 lines
7.4 KiB
Plaintext
29 lines
7.4 KiB
Plaintext
# Copyright 2020 syzkaller project authors. All rights reserved.
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# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
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include <uapi/linux/bpf.h>
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resource bpf_lsm_btf_id[bpf_btf_id]
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syz_btf_id_by_name$bpf_lsm(name ptr[in, string[bpf_lsm_func_names]]) bpf_lsm_btf_id (timeout[500])
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bpf$BPF_LSM_PROG_LOAD(cmd const[BPF_PROG_LOAD], arg ptr[in, bpf_lsm_prog], size len[arg]) fd_bpf_prog (timeout[500])
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type bpf_lsm_prog bpf_prog_t[const[BPF_PROG_TYPE_LSM, int32], const[BPF_LSM_MAC, int32], bpf_lsm_btf_id, const[0, int32]]
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# The list is generated by the following commands:
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# $ VMLINUX=[path to Linux kernel source directory]/vmlinux
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# $ bpftool btf dump file $VMLINUX | sed -n "s/.*FUNC '\(bpf_lsm\w*\).*/\"\1\"/p" | tr '\n' ',' | sed 's/,$/\n/'
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# where `$VMLINUX` should exist after compiling the Linux kernel.
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# You can also do `VMLINUX=/sys/kernel/btf/vmlinux` and run the command inside the target machine.
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#
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# How to install bpftool:
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# 1. Download the source code of the Linux kernel after version 5.4.
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# 2. Run the following commands (might need to run `make install` with root permission):
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# $ KERNEL=[path to Linux kernel source directory]
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# cd $KERNEL/tools/bpf/bpftool
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# make
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# make install
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bpf_lsm_func_names = "bpf_lsm_verify_prog", "bpf_lsm_perf_event_write", "bpf_lsm_perf_event_read", "bpf_lsm_perf_event_free", "bpf_lsm_perf_event_alloc", "bpf_lsm_perf_event_open", "bpf_lsm_locked_down", "bpf_lsm_bpf_prog_free_security", "bpf_lsm_bpf_prog_alloc_security", "bpf_lsm_bpf_map_free_security", "bpf_lsm_bpf_map_alloc_security", "bpf_lsm_bpf_prog", "bpf_lsm_bpf_map", "bpf_lsm_bpf", "bpf_lsm_audit_rule_free", "bpf_lsm_audit_rule_match", "bpf_lsm_audit_rule_known", "bpf_lsm_audit_rule_init", "bpf_lsm_key_getsecurity", "bpf_lsm_key_permission", "bpf_lsm_key_free", "bpf_lsm_key_alloc", "bpf_lsm_xfrm_decode_session", "bpf_lsm_xfrm_state_pol_flow_match", "bpf_lsm_xfrm_policy_lookup", "bpf_lsm_xfrm_state_delete_security", "bpf_lsm_xfrm_state_free_security", "bpf_lsm_xfrm_state_alloc_acquire", "bpf_lsm_xfrm_state_alloc", "bpf_lsm_xfrm_policy_delete_security", "bpf_lsm_xfrm_policy_free_security", "bpf_lsm_xfrm_policy_clone_security", "bpf_lsm_xfrm_policy_alloc_security", "bpf_lsm_ib_free_security", "bpf_lsm_ib_alloc_security", "bpf_lsm_ib_endport_manage_subnet", "bpf_lsm_ib_pkey_access", "bpf_lsm_sctp_sk_clone", "bpf_lsm_sctp_bind_connect", "bpf_lsm_sctp_assoc_request", "bpf_lsm_tun_dev_open", "bpf_lsm_tun_dev_attach", "bpf_lsm_tun_dev_attach_queue", "bpf_lsm_tun_dev_create", "bpf_lsm_tun_dev_free_security", "bpf_lsm_tun_dev_alloc_security", "bpf_lsm_req_classify_flow", "bpf_lsm_secmark_refcount_dec", "bpf_lsm_secmark_refcount_inc", "bpf_lsm_secmark_relabel_packet", "bpf_lsm_inet_conn_established", "bpf_lsm_inet_csk_clone", "bpf_lsm_inet_conn_request", "bpf_lsm_sock_graft", "bpf_lsm_sk_getsecid", "bpf_lsm_sk_clone_security", "bpf_lsm_sk_free_security", "bpf_lsm_sk_alloc_security", "bpf_lsm_socket_getpeersec_dgram", "bpf_lsm_socket_getpeersec_stream", "bpf_lsm_socket_sock_rcv_skb", "bpf_lsm_socket_shutdown", "bpf_lsm_socket_setsockopt", "bpf_lsm_socket_getsockopt", "bpf_lsm_socket_getpeername", "bpf_lsm_socket_getsockname", "bpf_lsm_socket_recvmsg", "bpf_lsm_socket_sendmsg", "bpf_lsm_socket_accept", "bpf_lsm_socket_listen", "bpf_lsm_socket_connect", "bpf_lsm_socket_bind", "bpf_lsm_socket_socketpair", "bpf_lsm_socket_post_create", "bpf_lsm_socket_create", "bpf_lsm_unix_may_send", "bpf_lsm_unix_stream_connect", "bpf_lsm_post_notification", "bpf_lsm_inode_getsecctx", "bpf_lsm_inode_setsecctx", "bpf_lsm_inode_notifysecctx", "bpf_lsm_inode_invalidate_secctx", "bpf_lsm_release_secctx", "bpf_lsm_secctx_to_secid", "bpf_lsm_secid_to_secctx", "bpf_lsm_ismaclabel", "bpf_lsm_setprocattr", "bpf_lsm_getprocattr", "bpf_lsm_d_instantiate", "bpf_lsm_netlink_send", "bpf_lsm_sem_semop", "bpf_lsm_sem_semctl", "bpf_lsm_sem_associate", "bpf_lsm_sem_free_security", "bpf_lsm_sem_alloc_security", "bpf_lsm_shm_shmat", "bpf_lsm_shm_shmctl", "bpf_lsm_shm_associate", "bpf_lsm_shm_free_security", "bpf_lsm_shm_alloc_security", "bpf_lsm_msg_queue_msgrcv", "bpf_lsm_msg_queue_msgsnd", "bpf_lsm_msg_queue_msgctl", "bpf_lsm_msg_queue_associate", "bpf_lsm_msg_queue_free_security", "bpf_lsm_msg_queue_alloc_security", "bpf_lsm_msg_msg_free_security", "bpf_lsm_msg_msg_alloc_security", "bpf_lsm_ipc_getsecid", "bpf_lsm_ipc_permission", "bpf_lsm_task_to_inode", "bpf_lsm_task_prctl", "bpf_lsm_task_kill", "bpf_lsm_task_movememory", "bpf_lsm_task_getscheduler", "bpf_lsm_task_setscheduler", "bpf_lsm_task_setrlimit", "bpf_lsm_task_prlimit", "bpf_lsm_task_getioprio", "bpf_lsm_task_setioprio", "bpf_lsm_task_setnice", "bpf_lsm_task_getsecid", "bpf_lsm_task_getsid", "bpf_lsm_task_getpgid", "bpf_lsm_task_setpgid", "bpf_lsm_task_fix_setgid", "bpf_lsm_task_fix_setuid", "bpf_lsm_kernel_post_read_file", "bpf_lsm_kernel_read_file", "bpf_lsm_kernel_load_data", "bpf_lsm_kernel_module_request", "bpf_lsm_kernel_create_files_as", "bpf_lsm_kernel_act_as", "bpf_lsm_cred_getsecid", "bpf_lsm_cred_transfer", "bpf_lsm_cred_prepare", "bpf_lsm_cred_free", "bpf_lsm_cred_alloc_blank", "bpf_lsm_task_free", "bpf_lsm_task_alloc", "bpf_lsm_file_open", "bpf_lsm_file_receive", "bpf_lsm_file_send_sigiotask", "bpf_lsm_file_set_fowner", "bpf_lsm_file_fcntl", "bpf_lsm_file_lock", "bpf_lsm_file_mprotect", "bpf_lsm_mmap_file", "bpf_lsm_mmap_addr", "bpf_lsm_file_ioctl", "bpf_lsm_file_free_security", "bpf_lsm_file_alloc_security", "bpf_lsm_file_permission", "bpf_lsm_kernfs_init_security", "bpf_lsm_inode_copy_up_xattr", "bpf_lsm_inode_copy_up", "bpf_lsm_inode_getsecid", "bpf_lsm_inode_listsecurity", "bpf_lsm_inode_setsecurity", "bpf_lsm_inode_getsecurity", "bpf_lsm_inode_killpriv", "bpf_lsm_inode_need_killpriv", "bpf_lsm_inode_removexattr", "bpf_lsm_inode_listxattr", "bpf_lsm_inode_getxattr", "bpf_lsm_inode_post_setxattr", "bpf_lsm_inode_setxattr", "bpf_lsm_inode_getattr", "bpf_lsm_inode_setattr", "bpf_lsm_inode_permission", "bpf_lsm_inode_follow_link", "bpf_lsm_inode_readlink", "bpf_lsm_inode_rename", "bpf_lsm_inode_mknod", "bpf_lsm_inode_rmdir", "bpf_lsm_inode_mkdir", "bpf_lsm_inode_symlink", "bpf_lsm_inode_unlink", "bpf_lsm_inode_link", "bpf_lsm_inode_create", "bpf_lsm_inode_init_security", "bpf_lsm_inode_free_security", "bpf_lsm_inode_alloc_security", "bpf_lsm_path_notify", "bpf_lsm_path_chroot", "bpf_lsm_path_chown", "bpf_lsm_path_chmod", "bpf_lsm_path_rename", "bpf_lsm_path_link", "bpf_lsm_path_symlink", "bpf_lsm_path_truncate", "bpf_lsm_path_mknod", "bpf_lsm_path_rmdir", "bpf_lsm_path_mkdir", "bpf_lsm_path_unlink", "bpf_lsm_dentry_create_files_as", "bpf_lsm_dentry_init_security", "bpf_lsm_move_mount", "bpf_lsm_sb_add_mnt_opt", "bpf_lsm_sb_clone_mnt_opts", "bpf_lsm_sb_set_mnt_opts", "bpf_lsm_sb_pivotroot", "bpf_lsm_sb_umount", "bpf_lsm_sb_mount", "bpf_lsm_sb_statfs", "bpf_lsm_sb_show_options", "bpf_lsm_sb_kern_mount", "bpf_lsm_sb_remount", "bpf_lsm_sb_eat_lsm_opts", "bpf_lsm_sb_free_mnt_opts", "bpf_lsm_sb_free_security", "bpf_lsm_sb_alloc_security", "bpf_lsm_fs_context_parse_param", "bpf_lsm_fs_context_dup", "bpf_lsm_bprm_committed_creds", "bpf_lsm_bprm_committing_creds", "bpf_lsm_bprm_check_security", "bpf_lsm_bprm_creds_from_file", "bpf_lsm_bprm_creds_for_exec", "bpf_lsm_vm_enough_memory", "bpf_lsm_settime", "bpf_lsm_syslog", "bpf_lsm_quota_on", "bpf_lsm_quotactl", "bpf_lsm_capable", "bpf_lsm_capset", "bpf_lsm_capget", "bpf_lsm_ptrace_traceme", "bpf_lsm_ptrace_access_check", "bpf_lsm_binder_transfer_file", "bpf_lsm_binder_transfer_binder", "bpf_lsm_binder_transaction", "bpf_lsm_binder_set_context_mgr"
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