hackedteam/fuzzer-android

/*
 * SYSCALL_DEFINE3(seccomp, unsigned int, op, unsigned int, flags,
 *                          const char __user *, uargs)
 */
#include <errno.h>
#include "sanitise.h"

#define SECCOMP_SET_MODE_STRICT 0
#define SECCOMP_SET_MODE_FILTER 1

#define SECCOMP_FILTER_FLAG_TSYNC 1

static void sanitise_seccomp(struct syscallrecord *rec)
{
    if (rec->a1 == SECCOMP_SET_MODE_STRICT) {
        rec->a2 = 0;
        rec->a3 = 0;
    }
}

struct syscallentry syscall_seccomp = {
    .name = "seccomp",
    .num_args = 3,
    .arg1name = "op",
    .arg1type = ARG_OP,
    .arg1list = {
        .num = 2,
        .values = { SECCOMP_SET_MODE_STRICT, SECCOMP_SET_MODE_FILTER },
    },
    .arg2name = "flags",
    .arg2type = ARG_LIST,
    .arg2list = {
        .num = 1,
        .values= { SECCOMP_FILTER_FLAG_TSYNC },
    },
    .arg3name = "uargs",
    .arg3type = ARG_ADDRESS,
    .sanitise = sanitise_seccomp,
};