void socket_setsockopt(struct sockopt *so, __unused__ struct socket_triplet *triplet)
{
so->level = SOL_SOCKET;
so->optname = RAND_ARRAY(socket_opts);
/* Adjust length according to operation set. */
switch (so->optname) {
case SO_LINGER:
so->optlen = sizeof(struct linger);
break;
case SO_RCVTIMEO:
case SO_SNDTIMEO:
so->optlen = sizeof(struct timeval);
break;
case SO_ATTACH_FILTER: {
unsigned long *optval = NULL, optlen = 0;
bpf_gen_filter(&optval, &optlen);
so->optval = (unsigned long) optval;
so->optlen = optlen;
break;
}
default:
break;
}
}
static void bpf_prog_load(union bpf_attr *attr)
{
unsigned long *insns = NULL, len = 0;
attr->prog_type = RAND_ARRAY(bpf_prog_types);
switch (attr->prog_type) {
case BPF_PROG_TYPE_SOCKET_FILTER:
bpf_gen_filter(&insns, &len);
break;
default:
// this will go away when all the other cases are enumerated
insns = zmalloc(page_size);
generate_rand_bytes((unsigned char *)insns, len);
break;
}
attr->insn_cnt = len;
attr->insns = (u64) insns;
attr->license = (u64) license;
attr->log_level = 0;
attr->log_size = rnd() % page_size;
attr->log_buf = (u64) get_writable_address(page_size);
attr->kern_version = rnd(); // TODO: stick uname in here.
}
