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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/seccomp.h

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  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 /*
 14  * All BPF programs must return a 32-bit value.
 15  * The bottom 16-bits are for optional return data.
 16  * The upper 16-bits are ordered from least permissive values to most.
 17  *
 18  * The ordering ensures that a min_t() over composed return values always
 19  * selects the least permissive choice.
 20  */
 21 #define SECCOMP_RET_KILL        0x00000000U /* kill the task immediately */
 22 #define SECCOMP_RET_TRAP        0x00030000U /* disallow and force a SIGSYS */
 23 #define SECCOMP_RET_ERRNO       0x00050000U /* returns an errno */
 24 #define SECCOMP_RET_TRACE       0x7ff00000U /* pass to a tracer or disallow */
 25 #define SECCOMP_RET_ALLOW       0x7fff0000U /* allow */
 26 
 27 /* Masks for the return value sections. */
 28 #define SECCOMP_RET_ACTION      0x7fff0000U
 29 #define SECCOMP_RET_DATA        0x0000ffffU
 30 
 31 /**
 32  * struct seccomp_data - the format the BPF program executes over.
 33  * @nr: the system call number
 34  * @arch: indicates system call convention as an AUDIT_ARCH_* value
 35  *        as defined in <linux/audit.h>.
 36  * @instruction_pointer: at the time of the system call.
 37  * @args: up to 6 system call arguments always stored as 64-bit values
 38  *        regardless of the architecture.
 39  */
 40 struct seccomp_data {
 41         int nr;
 42         __u32 arch;
 43         __u64 instruction_pointer;
 44         __u64 args[6];
 45 };
 46 
 47 #endif /* _UAPI_LINUX_SECCOMP_H */
 48 

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