/* Processes incoming requests for 'server'. */
static void
poll_server(int fd UNUSED, short int events UNUSED, void *server_)
{
struct vlog_server *server = server_;
for (;;) {
char cmd_buf[512];
struct sockaddr_un un;
socklen_t un_len;
char *reply;
int error;
error = recv_with_creds(server, cmd_buf, sizeof cmd_buf, &un, &un_len);
if (error > 0) {
if (error != EAGAIN && error != EWOULDBLOCK) {
fprintf(stderr, "vlog: reading configuration socket: %s",
strerror(errno));
}
break;
} else if (error < 0) {
continue;
}
/* Process message and send reply. */
if (!strncmp(cmd_buf, "set ", 4)) {
char *msg = vlog_set_levels_from_string(cmd_buf + 4);
reply = msg ? msg : xstrdup("ack");
} else if (!strcmp(cmd_buf, "list")) {
reply = vlog_get_levels();
} else if (!strcmp(cmd_buf, "reopen")) {
int error = vlog_reopen_log_file();
reply = (error
? xasprintf("could not reopen log file \"%s\": %s",
vlog_get_log_file(), strerror(error))
: xstrdup("ack"));
} else {
reply = xstrdup("nak");
}
sendto(server->fd, reply, strlen(reply), 0,
(struct sockaddr*) &un, un_len);
free(reply);
}
server->waiter = poll_fd_callback(server->fd, POLLIN, poll_server, server);
}
int
main(void)
{
int exit_code = 0;
struct ds in;
ds_init(&in);
vlog_set_levels_from_string("odp_util:console:dbg");
while (!ds_get_line(&in, stdin)) {
enum odp_key_fitness fitness;
struct ofpbuf odp_key;
struct flow flow;
struct ds out;
int error;
char *s;
/* Delete comments, skip blank lines. */
s = ds_cstr(&in);
if (*s == '#') {
puts(s);
continue;
}
if (strchr(s, '#')) {
*strchr(s, '#') = '\0';
}
if (s[strspn(s, " ")] == '\0') {
putchar('\n');
continue;
}
/* Convert string to OVS DP key. */
ofpbuf_init(&odp_key, 0);
error = odp_flow_key_from_string(ds_cstr(&in), NULL, &odp_key);
if (error) {
printf("odp_flow_key_from_string: error\n");
goto next;
}
/* Convert odp_key to flow. */
fitness = odp_flow_key_to_flow(odp_key.data, odp_key.size, &flow);
switch (fitness) {
case ODP_FIT_PERFECT:
break;
case ODP_FIT_TOO_LITTLE:
printf("ODP_FIT_TOO_LITTLE: ");
break;
case ODP_FIT_TOO_MUCH:
printf("ODP_FIT_TOO_MUCH: ");
break;
case ODP_FIT_ERROR:
printf("odp_flow_key_to_flow: error\n");
goto next;
}
/* Convert cls_rule back to odp_key. */
ofpbuf_uninit(&odp_key);
ofpbuf_init(&odp_key, 0);
odp_flow_key_from_flow(&odp_key, &flow);
if (odp_key.size > ODPUTIL_FLOW_KEY_BYTES) {
printf ("too long: %zu > %d\n",
odp_key.size, ODPUTIL_FLOW_KEY_BYTES);
exit_code = 1;
}
/* Convert odp_key to string. */
ds_init(&out);
odp_flow_key_format(odp_key.data, odp_key.size, &out);
puts(ds_cstr(&out));
ds_destroy(&out);
next:
ofpbuf_uninit(&odp_key);
}
ds_destroy(&in);
return exit_code;
}
