diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/system.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/system.h b/src/system.h index 9f708d1..884d6ff 100644 --- a/src/system.h +++ b/src/system.h @@ -60,6 +60,7 @@ struct db_filter_col; #define SECCOMP_RET_KILL SECCOMP_RET_KILL_THREAD /* default to killing the thread */ #define SECCOMP_RET_TRAP 0x00030000U /* disallow and force a SIGSYS */ #define SECCOMP_RET_ERRNO 0x00050000U /* returns an errno */ +#define SECCOMP_RET_USER_NOTIF 0x7fc00000U /* notifies userspace */ #define SECCOMP_RET_TRACE 0x7ff00000U /* pass to a tracer or disallow */ #define SECCOMP_RET_LOG 0x7ffc0000U /* allow after logging */ #define SECCOMP_RET_ALLOW 0x7fff0000U /* allow */ @@ -85,6 +86,38 @@ struct seccomp_data { __u64 args[6]; }; +struct seccomp_notif_sizes { + __u16 seccomp_notif; + __u16 seccomp_notif_resp; + __u16 seccomp_data; +}; + +struct seccomp_notif { + __u64 id; + __u32 pid; + __u32 flags; + struct seccomp_data data; +}; + +struct seccomp_notif_resp { + __u64 id; + __s64 val; + __s32 error; + __u32 flags; +}; + +#define SECCOMP_IOC_MAGIC '!' +#define SECCOMP_IO(nr) _IO(SECCOMP_IOC_MAGIC, nr) +#define SECCOMP_IOR(nr, type) _IOR(SECCOMP_IOC_MAGIC, nr, type) +#define SECCOMP_IOW(nr, type) _IOW(SECCOMP_IOC_MAGIC, nr, type) +#define SECCOMP_IOWR(nr, type) _IOWR(SECCOMP_IOC_MAGIC, nr, type) + +/* Flags for seccomp notification fd ioctl. */ +#define SECCOMP_IOCTL_NOTIF_RECV SECCOMP_IOWR(0, struct seccomp_notif) +#define SECCOMP_IOCTL_NOTIF_SEND SECCOMP_IOWR(1, \ + struct seccomp_notif_resp) +#define SECCOMP_IOCTL_NOTIF_ID_VALID SECCOMP_IOR(2, __u64) + #endif /* HAVE_LINUX_SECCOMP_H */ /* rename some of the socket filter types to make more sense */ @@ -109,6 +142,9 @@ typedef struct sock_filter bpf_instr_raw; #ifndef SECCOMP_GET_ACTION_AVAIL #define SECCOMP_GET_ACTION_AVAIL 2 #endif +#ifndef SECCOMP_GET_NOTIF_SIZES +#define SECCOMP_GET_NOTIF_SIZES 3 +#endif /* flags for the seccomp() syscall */ #ifndef SECCOMP_FILTER_FLAG_TSYNC @@ -117,6 +153,16 @@ typedef struct sock_filter bpf_instr_raw; #ifndef SECCOMP_FILTER_FLAG_LOG #define SECCOMP_FILTER_FLAG_LOG (1UL << 1) #endif +#ifndef SECCOMP_FILTER_FLAG_SPEC_ALLOW +#define SECCOMP_FILTER_FLAG_SPEC_ALLOW (1UL << 2) +#endif +#ifndef SECCOMP_FILTER_FLAG_NEW_LISTENER +#define SECCOMP_FILTER_FLAG_NEW_LISTENER (1UL << 3) +#endif + +#ifndef SECCOMP_RET_LOG +#define SECCOMP_RET_LOG 0x7ffc0000U /* allow after logging */ +#endif /* SECCOMP_RET_ACTION_FULL was added in kernel v4.14. It may not be * defined on older kernels @@ -132,6 +178,46 @@ typedef struct sock_filter bpf_instr_raw; #define SECCOMP_RET_LOG 0x7fc00000U #endif +/* SECCOMP_RET_USER_NOTIF was added in kernel 5.0. It may not be defined on + * older kernels. This version also added the structures below, so let's define + * those if the header doesn't have this definiton. + */ +#ifndef SECCOMP_RET_USER_NOTIF +#define SECCOMP_RET_USER_NOTIF 0x7fc00000U + +struct seccomp_notif_sizes { + __u16 seccomp_notif; + __u16 seccomp_notif_resp; + __u16 seccomp_data; +}; + +struct seccomp_notif { + __u64 id; + __u32 pid; + __u32 flags; + struct seccomp_data data; +}; + +struct seccomp_notif_resp { + __u64 id; + __s64 val; + __s32 error; + __u32 flags; +}; + +#define SECCOMP_IOC_MAGIC '!' +#define SECCOMP_IO(nr) _IO(SECCOMP_IOC_MAGIC, nr) +#define SECCOMP_IOR(nr, type) _IOR(SECCOMP_IOC_MAGIC, nr, type) +#define SECCOMP_IOW(nr, type) _IOW(SECCOMP_IOC_MAGIC, nr, type) +#define SECCOMP_IOWR(nr, type) _IOWR(SECCOMP_IOC_MAGIC, nr, type) + +/* Flags for seccomp notification fd ioctl. */ +#define SECCOMP_IOCTL_NOTIF_RECV SECCOMP_IOWR(0, struct seccomp_notif) +#define SECCOMP_IOCTL_NOTIF_SEND SECCOMP_IOWR(1, \ + struct seccomp_notif_resp) +#define SECCOMP_IOCTL_NOTIF_ID_VALID SECCOMP_IOR(2, __u64) +#endif + int sys_chk_seccomp_syscall(void); void sys_set_seccomp_syscall(bool enable); |