diff options
Diffstat (limited to 'src/firejail/syscall.c')
-rw-r--r-- | src/firejail/syscall.c | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/src/firejail/syscall.c b/src/firejail/syscall.c deleted file mode 100644 index f405f23c8..000000000 --- a/src/firejail/syscall.c +++ /dev/null | |||
@@ -1,105 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2014-2016 Firejail Authors | ||
3 | * | ||
4 | * This file is part of firejail project | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License along | ||
17 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
19 | */ | ||
20 | |||
21 | #ifdef HAVE_SECCOMP | ||
22 | #include "firejail.h" | ||
23 | #include <sys/syscall.h> | ||
24 | |||
25 | typedef struct { | ||
26 | char *name; | ||
27 | int nr; | ||
28 | } SyscallEntry; | ||
29 | |||
30 | static SyscallEntry syslist[] = { | ||
31 | // | ||
32 | // code generated using tools/extract-syscall | ||
33 | // | ||
34 | #include "../include/syscall.h" | ||
35 | // | ||
36 | // end of generated code | ||
37 | // | ||
38 | }; // end of syslist | ||
39 | |||
40 | const char *syscall_find_nr(int nr) { | ||
41 | int i; | ||
42 | int elems = sizeof(syslist) / sizeof(syslist[0]); | ||
43 | for (i = 0; i < elems; i++) { | ||
44 | if (nr == syslist[i].nr) | ||
45 | return syslist[i].name; | ||
46 | } | ||
47 | |||
48 | return "unknown"; | ||
49 | } | ||
50 | |||
51 | // return -1 if error, or syscall number | ||
52 | static int syscall_find_name(const char *name) { | ||
53 | int i; | ||
54 | int elems = sizeof(syslist) / sizeof(syslist[0]); | ||
55 | for (i = 0; i < elems; i++) { | ||
56 | if (strcmp(name, syslist[i].name) == 0) | ||
57 | return syslist[i].nr; | ||
58 | } | ||
59 | |||
60 | return -1; | ||
61 | } | ||
62 | |||
63 | // return 1 if error, 0 if OK | ||
64 | int syscall_check_list(const char *slist, void (*callback)(int syscall, int arg), int arg) { | ||
65 | // don't allow empty lists | ||
66 | if (slist == NULL || *slist == '\0') { | ||
67 | fprintf(stderr, "Error: empty syscall lists are not allowed\n"); | ||
68 | return -1; | ||
69 | } | ||
70 | |||
71 | // work on a copy of the string | ||
72 | char *str = strdup(slist); | ||
73 | if (!str) | ||
74 | errExit("strdup"); | ||
75 | |||
76 | char *ptr = str; | ||
77 | char *start = str; | ||
78 | while (*ptr != '\0') { | ||
79 | if (islower(*ptr) || isdigit(*ptr) || *ptr == '_') | ||
80 | ; | ||
81 | else if (*ptr == ',') { | ||
82 | *ptr = '\0'; | ||
83 | int nr = syscall_find_name(start); | ||
84 | if (nr == -1) | ||
85 | fprintf(stderr, "Warning: syscall %s not found\n", start); | ||
86 | else if (callback != NULL) | ||
87 | callback(nr, arg); | ||
88 | |||
89 | start = ptr + 1; | ||
90 | } | ||
91 | ptr++; | ||
92 | } | ||
93 | if (*start != '\0') { | ||
94 | int nr = syscall_find_name(start); | ||
95 | if (nr == -1) | ||
96 | fprintf(stderr, "Warning: syscall %s not found\n", start); | ||
97 | else if (callback != NULL) | ||
98 | callback(nr, arg); | ||
99 | } | ||
100 | |||
101 | free(str); | ||
102 | return 0; | ||
103 | } | ||
104 | |||
105 | #endif // HAVE_SECCOMP | ||