1 #ifndef _UAPI_LINUX_SECCOMP_H 2 #define _UAPI_LINUX_SECCOMP_H 3 4 #include <linux/compiler.h> 5 #include <linux/types.h> 6 7 8 /* Valid values for seccomp.mode and prctl(PR_SET_SECCOMP, <mode>) */ 9 #define SECCOMP_MODE_DISABLED 0 /* seccomp is not in use. */ 10 #define SECCOMP_MODE_STRICT 1 /* uses hard-coded filter. */ 11 #define SECCOMP_MODE_FILTER 2 /* uses user-supplied filter. */ 12 13 /* Valid operations for seccomp syscall. */ 14 #define SECCOMP_SET_MODE_STRICT 0 15 #define SECCOMP_SET_MODE_FILTER 1 16 17 /* Valid flags for SECCOMP_SET_MODE_FILTER */ 18 #define SECCOMP_FILTER_FLAG_TSYNC 1 19 20 /* 21 * All BPF programs must return a 32-bit value. 22 * The bottom 16-bits are for optional return data. 23 * The upper 16-bits are ordered from least permissive values to most. 24 * 25 * The ordering ensures that a min_t() over composed return values always 26 * selects the least permissive choice. 27 */ 28 #define SECCOMP_RET_KILL 0x00000000U /* kill the task immediately */ 29 #define SECCOMP_RET_TRAP 0x00030000U /* disallow and force a SIGSYS */ 30 #define SECCOMP_RET_ERRNO 0x00050000U /* returns an errno */ 31 #define SECCOMP_RET_TRACE 0x7ff00000U /* pass to a tracer or disallow */ 32 #define SECCOMP_RET_ALLOW 0x7fff0000U /* allow */ 33 34 /* Masks for the return value sections. */ 35 #define SECCOMP_RET_ACTION 0x7fff0000U 36 #define SECCOMP_RET_DATA 0x0000ffffU 37 38 /** 39 * struct seccomp_data - the format the BPF program executes over. 40 * @nr: the system call number 41 * @arch: indicates system call convention as an AUDIT_ARCH_* value 42 * as defined in <linux/audit.h>. 43 * @instruction_pointer: at the time of the system call. 44 * @args: up to 6 system call arguments always stored as 64-bit values 45 * regardless of the architecture. 46 */ 47 struct seccomp_data { 48 int nr; 49 __u32 arch; 50 __u64 instruction_pointer; 51 __u64 args[6]; 52 }; 53 54 #endif /* _UAPI_LINUX_SECCOMP_H */ 55
