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seccomp: get_v2_default_action()

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Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2018-05-24 13:42:47 +02:00
parent 7ad3767052
commit 30448a13ab
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GPG Key ID: 8EB056D53EECB12D
1 changed files with 13 additions and 7 deletions
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20
src/lxc/seccomp.c
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@ -71,20 +71,26 @@ static uint32_t get_v2_default_action(char *line)
while (*line == ' ') while (*line == ' ')
line++; line++;
/* After 'whitelist' or 'blacklist' comes default behavior. */ /* After 'whitelist' or 'blacklist' comes default behavior. */
if (strncmp(line, "kill", 4) == 0) if (strncmp(line, "kill", 4) == 0) {
ret_action = SCMP_ACT_KILL; ret_action = SCMP_ACT_KILL;
else if (strncmp(line, "errno", 5) == 0) { } else if (strncmp(line, "errno", 5) == 0) {
int e; int e, ret;
if (sscanf(line + 5, "%d", &e) != 1) {
ERROR("Bad errno value in %s", line); ret = sscanf(line + 5, "%d", &e);
if (ret != 1) {
ERROR("Failed to parse errno value from %s", line);
return -2; return -2;
} }
ret_action = SCMP_ACT_ERRNO(e); ret_action = SCMP_ACT_ERRNO(e);
} else if (strncmp(line, "allow", 5) == 0) } else if (strncmp(line, "allow", 5) == 0) {
ret_action = SCMP_ACT_ALLOW; ret_action = SCMP_ACT_ALLOW;
else if (strncmp(line, "trap", 4) == 0) } else if (strncmp(line, "trap", 4) == 0) {
ret_action = SCMP_ACT_TRAP; ret_action = SCMP_ACT_TRAP;
}
return ret_action; return ret_action;
} }