int p4ns_db_del_port(p4ns_db_cxt_t c,
const char *name, const char *iface) {
redisReply *reply;
char ports_key[128];
char port_nums_key[128];
get_ports_key(ports_key, name);
get_port_nums_key(port_nums_key, name);
if(!p4ns_db_has_datapath(c, name)) { /* datapath does not exist */
return P4NSDB_ERROR_INVALID_DATAPATH;
}
if(!has_port(c, ports_key, iface)) { /* port invalid */
return P4NSDB_ERROR_INVALID_PORT;
}
reply = redisCommand(c, "HGET %s %s", ports_key, iface);
p4ns_port_t *p4ns_port = (p4ns_port_t *) reply->str;
uint16_t port_num = p4ns_port->port_num;
freeReplyObject(reply);
reply = redisCommand(c, "HDEL %s %s", ports_key, iface);
assert(reply->integer == 1);
freeReplyObject(reply);
reply = redisCommand(c, "SREM %s %d", port_nums_key, port_num);
assert(reply->integer == 1);
freeReplyObject(reply);
return 0;
}
int p4ns_db_add_port(p4ns_db_cxt_t c,
const char *name, const char *iface, uint16_t port_num) {
redisReply *reply;
char ports_key[128];
char port_nums_key[128];
get_ports_key(ports_key, name);
get_port_nums_key(port_nums_key, name);
if(!p4ns_db_has_datapath(c, name)) { /* datapath does not exist */
return P4NSDB_ERROR_INVALID_DATAPATH;
}
if(has_port(c, ports_key, iface)) { /* port exists */
return P4NSDB_ERROR_PORT_EXISTS;
}
if(has_port_num(c, port_nums_key, port_num)) { /* port num taken */
return P4NSDB_ERROR_PORT_NUM_TAKEN;
}
p4ns_port_t p4ns_port;
memset(&p4ns_port, 0, sizeof(p4ns_port_t));
p4ns_port.port_num = port_num;
strncpy(p4ns_port.iface, iface, 64);
reply = redisCommand(c, "HSET %s %s %b", ports_key, iface, &p4ns_port, sizeof(p4ns_port_t));
assert(reply->integer == 1);
freeReplyObject(reply);
reply = redisCommand(c, "SADD %s %d", port_nums_key, port_num);
assert(reply->integer == 1);
freeReplyObject(reply);
return 0;
}
int p4ns_db_has_port(p4ns_db_cxt_t c,
const char *name, const char *iface) {
char ports_key[128];
get_ports_key(ports_key, name);
if(!p4ns_db_has_datapath(c, name)) { /* datapath does not exist */
return 0;
}
return has_port(c, ports_key, iface);
}
struct url_t *url_parse(const char *url) {
struct url_t *self = url_new();
const char *p = url;
if (!(p = parse_protocol(self, p))) {
url_free(self);
return NULL;
}
self->has_port = has_port(p);
if (!(p = parse_host(self, p))) {
url_free(self);
return NULL;
}
if (!(p = parse_port(self, p))) {
url_free(self);
return NULL;
}
self->path = strdup(p);
return self;
}
static ActionSkBuff
filter_port(arguments_t args, SkBuff b)
{
const u16 port = GET_ARG(u16, args);
return has_port(b, port) ? Pass(b) : Drop(b);
}
static bool
pred_has_port(arguments_t args, SkBuff b)
{
const u16 port = GET_ARG(u16, args);
return has_port(b, port);
}
