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#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <linux/qrtr.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <poll.h>
#include "libqrtr.h"
#include "logging.h"
#include "ns.h"
static int qrtr_getname(int sock, struct sockaddr_qrtr *sq)
{
socklen_t sl = sizeof(*sq);
int rc;
rc = getsockname(sock, (void *)sq, &sl);
if (rc) {
PLOGE("getsockname()");
return -1;
}
if (sq->sq_family != AF_QIPCRTR || sl != sizeof(*sq))
return -1;
return 0;
}
int qrtr_open(int rport)
{
struct timeval tv;
int sock;
int rc;
sock = socket(AF_QIPCRTR, SOCK_DGRAM, 0);
if (sock < 0) {
PLOGE("socket(AF_QIPCRTR)");
return -1;
}
tv.tv_sec = 1;
tv.tv_usec = 0;
rc = setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
if (rc) {
PLOGE("setsockopt(SO_RCVTIMEO)");
goto err;
}
if (rport != 0) {
struct sockaddr_qrtr sq;
sq.sq_family = AF_QIPCRTR;
sq.sq_node = 1;
sq.sq_port = rport;
rc = bind(sock, (void *)&sq, sizeof(sq));
if (rc < 0) {
PLOGE("bind(%d)", rport);
goto err;
}
}
return sock;
err:
close(sock);
return -1;
}
void qrtr_close(int sock)
{
close(sock);
}
int qrtr_sendto(int sock, uint32_t node, uint32_t port, const void *data, unsigned int sz)
{
struct sockaddr_qrtr sq;
int rc;
sq.sq_family = AF_QIPCRTR;
sq.sq_node = node;
sq.sq_port = port;
rc = sendto(sock, data, sz, 0, (void *)&sq, sizeof(sq));
if (rc < 0) {
PLOGE("sendto()");
return -1;
}
return 0;
}
int qrtr_new_server(int sock, uint32_t service, uint16_t version, uint16_t instance)
{
struct qrtr_ctrl_pkt pkt;
struct sockaddr_qrtr sq;
if (qrtr_getname(sock, &sq))
return -1;
memset(&pkt, 0, sizeof(pkt));
pkt.cmd = cpu_to_le32(QRTR_TYPE_NEW_SERVER);
pkt.server.service = cpu_to_le32(service);
pkt.server.instance = cpu_to_le32(instance << 8 | version);
return qrtr_sendto(sock, sq.sq_node, QRTR_PORT_CTRL, &pkt, sizeof(pkt));
}
int qrtr_remove_server(int sock, uint32_t service, uint16_t version, uint16_t instance)
{
struct qrtr_ctrl_pkt pkt;
struct sockaddr_qrtr sq;
if (qrtr_getname(sock, &sq))
return -1;
memset(&pkt, 0, sizeof(pkt));
pkt.cmd = cpu_to_le32(QRTR_TYPE_DEL_SERVER);
pkt.server.service = cpu_to_le32(service);
pkt.server.instance = cpu_to_le32(instance << 8 | version);
pkt.server.node = cpu_to_le32(sq.sq_node);
pkt.server.port = cpu_to_le32(sq.sq_port);
return qrtr_sendto(sock, sq.sq_node, QRTR_PORT_CTRL, &pkt, sizeof(pkt));
}
int qrtr_publish(int sock, uint32_t service, uint16_t version, uint16_t instance)
{
return qrtr_new_server(sock, service, version, instance);
}
int qrtr_bye(int sock, uint32_t service, uint16_t version, uint16_t instance)
{
return qrtr_remove_server(sock, service, version, instance);
}
int qrtr_new_lookup(int sock, uint32_t service, uint16_t version, uint16_t instance)
{
struct qrtr_ctrl_pkt pkt;
struct sockaddr_qrtr sq;
if (qrtr_getname(sock, &sq))
return -1;
memset(&pkt, 0, sizeof(pkt));
pkt.cmd = cpu_to_le32(QRTR_TYPE_NEW_LOOKUP);
pkt.server.service = cpu_to_le32(service);
pkt.server.instance = cpu_to_le32(instance << 8 | version);
return qrtr_sendto(sock, sq.sq_node, QRTR_PORT_CTRL, &pkt, sizeof(pkt));
}
int qrtr_remove_lookup(int sock, uint32_t service, uint16_t version, uint16_t instance)
{
struct qrtr_ctrl_pkt pkt;
struct sockaddr_qrtr sq;
if (qrtr_getname(sock, &sq))
return -1;
memset(&pkt, 0, sizeof(pkt));
pkt.cmd = cpu_to_le32(QRTR_TYPE_DEL_LOOKUP);
pkt.server.service = cpu_to_le32(service);
pkt.server.instance = cpu_to_le32(instance << 8 | version);
pkt.server.node = cpu_to_le32(sq.sq_node);
pkt.server.port = cpu_to_le32(sq.sq_port);
return qrtr_sendto(sock, sq.sq_node, QRTR_PORT_CTRL, &pkt, sizeof(pkt));
}
int qrtr_poll(int sock, unsigned int ms)
{
struct pollfd fds;
fds.fd = sock;
fds.revents = 0;
fds.events = POLLIN | POLLERR;
return poll(&fds, 1, ms);
}
int qrtr_recv(int sock, void *buf, unsigned int bsz)
{
int rc;
rc = recv(sock, buf, bsz, 0);
if (rc < 0)
PLOGE("recv()");
return rc;
}
int qrtr_recvfrom(int sock, void *buf, unsigned int bsz, uint32_t *node, uint32_t *port)
{
struct sockaddr_qrtr sq;
socklen_t sl;
int rc;
sl = sizeof(sq);
rc = recvfrom(sock, buf, bsz, 0, (void *)&sq, &sl);
if (rc < 0) {
PLOGE("recvfrom()");
return rc;
}
if (node)
*node = sq.sq_node;
if (port)
*port = sq.sq_port;
return rc;
}
int qrtr_decode(struct qrtr_packet *dest, void *buf, size_t len,
const struct sockaddr_qrtr *sq)
{
const struct qrtr_ctrl_pkt *ctrl = buf;
if (sq->sq_port == QRTR_PORT_CTRL){
if (len < sizeof(*ctrl))
return -EMSGSIZE;
dest->type = le32_to_cpu(ctrl->cmd);
switch (dest->type) {
case QRTR_TYPE_BYE:
dest->node = le32_to_cpu(ctrl->client.node);
break;
case QRTR_TYPE_DEL_CLIENT:
dest->node = le32_to_cpu(ctrl->client.node);
dest->port = le32_to_cpu(ctrl->client.port);
break;
case QRTR_TYPE_NEW_SERVER:
case QRTR_TYPE_DEL_SERVER:
dest->node = le32_to_cpu(ctrl->server.node);
dest->port = le32_to_cpu(ctrl->server.port);
dest->service = le32_to_cpu(ctrl->server.service);
dest->version = le32_to_cpu(ctrl->server.instance) & 0xff;
dest->instance = le32_to_cpu(ctrl->server.instance) >> 8;
break;
default:
dest->type = 0;
}
} else {
dest->type = QRTR_TYPE_DATA;
dest->node = sq->sq_node;
dest->port = sq->sq_port;
dest->data = buf;
dest->data_len = len;
}
return 0;
}
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