1 | #ifndef _LINUX_PRCTL_H |
2 | #define _LINUX_PRCTL_H |
3 | |
4 | /* Values to pass as first argument to prctl() */ |
5 | |
6 | #define PR_SET_PDEATHSIG 1 /* Second arg is a signal */ |
7 | #define PR_GET_PDEATHSIG 2 /* Second arg is a ptr to return the signal */ |
8 | |
9 | /* Get/set current->mm->dumpable */ |
10 | #define PR_GET_DUMPABLE 3 |
11 | #define PR_SET_DUMPABLE 4 |
12 | |
13 | /* Get/set unaligned access control bits (if meaningful) */ |
14 | #define PR_GET_UNALIGN 5 |
15 | #define PR_SET_UNALIGN 6 |
16 | # define PR_UNALIGN_NOPRINT 1 /* silently fix up unaligned user accesses */ |
17 | # define PR_UNALIGN_SIGBUS 2 /* generate SIGBUS on unaligned user access */ |
18 | |
19 | /* Get/set whether or not to drop capabilities on setuid() away from |
20 | * uid 0 (as per security/commoncap.c) */ |
21 | #define PR_GET_KEEPCAPS 7 |
22 | #define PR_SET_KEEPCAPS 8 |
23 | |
24 | /* Get/set floating-point emulation control bits (if meaningful) */ |
25 | #define PR_GET_FPEMU 9 |
26 | #define PR_SET_FPEMU 10 |
27 | # define PR_FPEMU_NOPRINT 1 /* silently emulate fp operations accesses */ |
28 | # define PR_FPEMU_SIGFPE 2 /* don't emulate fp operations, send SIGFPE instead */ |
29 | |
30 | /* Get/set floating-point exception mode (if meaningful) */ |
31 | #define PR_GET_FPEXC 11 |
32 | #define PR_SET_FPEXC 12 |
33 | # define PR_FP_EXC_SW_ENABLE 0x80 /* Use FPEXC for FP exception enables */ |
34 | # define PR_FP_EXC_DIV 0x010000 /* floating point divide by zero */ |
35 | # define PR_FP_EXC_OVF 0x020000 /* floating point overflow */ |
36 | # define PR_FP_EXC_UND 0x040000 /* floating point underflow */ |
37 | # define PR_FP_EXC_RES 0x080000 /* floating point inexact result */ |
38 | # define PR_FP_EXC_INV 0x100000 /* floating point invalid operation */ |
39 | # define PR_FP_EXC_DISABLED 0 /* FP exceptions disabled */ |
40 | # define PR_FP_EXC_NONRECOV 1 /* async non-recoverable exc. mode */ |
41 | # define PR_FP_EXC_ASYNC 2 /* async recoverable exception mode */ |
42 | # define PR_FP_EXC_PRECISE 3 /* precise exception mode */ |
43 | |
44 | /* Get/set whether we use statistical process timing or accurate timestamp |
45 | * based process timing */ |
46 | #define PR_GET_TIMING 13 |
47 | #define PR_SET_TIMING 14 |
48 | # define PR_TIMING_STATISTICAL 0 /* Normal, traditional, |
49 | statistical process timing */ |
50 | # define PR_TIMING_TIMESTAMP 1 /* Accurate timestamp based |
51 | process timing */ |
52 | |
53 | #define PR_SET_NAME 15 /* Set process name */ |
54 | #define PR_GET_NAME 16 /* Get process name */ |
55 | |
56 | /* Get/set process endian */ |
57 | #define PR_GET_ENDIAN 19 |
58 | #define PR_SET_ENDIAN 20 |
59 | # define PR_ENDIAN_BIG 0 |
60 | # define PR_ENDIAN_LITTLE 1 /* True little endian mode */ |
61 | # define PR_ENDIAN_PPC_LITTLE 2 /* "PowerPC" pseudo little endian */ |
62 | |
63 | /* Get/set process seccomp mode */ |
64 | #define PR_GET_SECCOMP 21 |
65 | #define PR_SET_SECCOMP 22 |
66 | |
67 | /* Get/set the capability bounding set (as per security/commoncap.c) */ |
68 | #define PR_CAPBSET_READ 23 |
69 | #define PR_CAPBSET_DROP 24 |
70 | |
71 | /* Get/set the process' ability to use the timestamp counter instruction */ |
72 | #define PR_GET_TSC 25 |
73 | #define PR_SET_TSC 26 |
74 | # define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */ |
75 | # define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */ |
76 | |
77 | /* Get/set securebits (as per security/commoncap.c) */ |
78 | #define PR_GET_SECUREBITS 27 |
79 | #define PR_SET_SECUREBITS 28 |
80 | |
81 | /* |
82 | * Get/set the timerslack as used by poll/select/nanosleep |
83 | * A value of 0 means "use default" |
84 | */ |
85 | #define PR_SET_TIMERSLACK 29 |
86 | #define PR_GET_TIMERSLACK 30 |
87 | |
88 | #define PR_TASK_PERF_EVENTS_DISABLE 31 |
89 | #define PR_TASK_PERF_EVENTS_ENABLE 32 |
90 | |
91 | /* |
92 | * Set early/late kill mode for hwpoison memory corruption. |
93 | * This influences when the process gets killed on a memory corruption. |
94 | */ |
95 | #define PR_MCE_KILL 33 |
96 | # define PR_MCE_KILL_CLEAR 0 |
97 | # define PR_MCE_KILL_SET 1 |
98 | |
99 | # define PR_MCE_KILL_LATE 0 |
100 | # define PR_MCE_KILL_EARLY 1 |
101 | # define PR_MCE_KILL_DEFAULT 2 |
102 | |
103 | #define PR_MCE_KILL_GET 34 |
104 | |
105 | /* |
106 | * Tune up process memory map specifics. |
107 | */ |
108 | #define PR_SET_MM 35 |
109 | # define PR_SET_MM_START_CODE 1 |
110 | # define PR_SET_MM_END_CODE 2 |
111 | # define PR_SET_MM_START_DATA 3 |
112 | # define PR_SET_MM_END_DATA 4 |
113 | # define PR_SET_MM_START_STACK 5 |
114 | # define PR_SET_MM_START_BRK 6 |
115 | # define PR_SET_MM_BRK 7 |
116 | # define PR_SET_MM_ARG_START 8 |
117 | # define PR_SET_MM_ARG_END 9 |
118 | # define PR_SET_MM_ENV_START 10 |
119 | # define PR_SET_MM_ENV_END 11 |
120 | # define PR_SET_MM_AUXV 12 |
121 | # define PR_SET_MM_EXE_FILE 13 |
122 | |
123 | /* |
124 | * Set specific pid that is allowed to ptrace the current task. |
125 | * A value of 0 mean "no process". |
126 | */ |
127 | #define PR_SET_PTRACER 0x59616d61 |
128 | # define PR_SET_PTRACER_ANY ((unsigned long)-1) |
129 | |
130 | #define PR_SET_CHILD_SUBREAPER 36 |
131 | #define PR_GET_CHILD_SUBREAPER 37 |
132 | |
133 | /* |
134 | * If no_new_privs is set, then operations that grant new privileges (i.e. |
135 | * execve) will either fail or not grant them. This affects suid/sgid, |
136 | * file capabilities, and LSMs. |
137 | * |
138 | * Operations that merely manipulate or drop existing privileges (setresuid, |
139 | * capset, etc.) will still work. Drop those privileges if you want them gone. |
140 | * |
141 | * Changing LSM security domain is considered a new privilege. So, for example, |
142 | * asking selinux for a specific new context (e.g. with runcon) will result |
143 | * in execve returning -EPERM. |
144 | * |
145 | * See Documentation/prctl/no_new_privs.txt for more details. |
146 | */ |
147 | #define PR_SET_NO_NEW_PRIVS 38 |
148 | #define PR_GET_NO_NEW_PRIVS 39 |
149 | |
150 | #define PR_GET_TID_ADDRESS 40 |
151 | |
152 | #endif /* _LINUX_PRCTL_H */ |
153 | |