| /* |
| <:copyright-BRCM:2016:DUAL/GPL:standard |
| |
| Broadcom Proprietary and Confidential.(c) 2016 Broadcom |
| All Rights Reserved |
| |
| Unless you and Broadcom execute a separate written software license |
| agreement governing use of this software, this software is licensed |
| to you under the terms of the GNU General Public License version 2 |
| (the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php, |
| with the following added to such license: |
| |
| As a special exception, the copyright holders of this software give |
| you permission to link this software with independent modules, and |
| to copy and distribute the resulting executable under terms of your |
| choice, provided that you also meet, for each linked independent |
| module, the terms and conditions of the license of that module. |
| An independent module is a module which is not derived from this |
| software. The special exception does not apply to any modifications |
| of the software. |
| |
| Not withstanding the above, under no circumstances may you combine |
| this software in any way with any other Broadcom software provided |
| under a license other than the GPL, without Broadcom's express prior |
| written consent. |
| |
| :> |
| */ |
| |
| /* |
| * bcmtr_inband.c - In-band transport driver |
| */ |
| #include <bcmos_system.h> |
| #include <bcmtr_inband.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| |
| typedef struct device_info |
| { |
| bcmos_ipv4_address remote_ip; |
| uint16_t remote_port; |
| uint8_t channel; |
| int tr_udp_sock; |
| } device_info; |
| |
| static device_info dev_info[BCMTR_MAX_OLTS]; |
| |
| #define DEBUG_ONLY 0 |
| |
| /** Initialize in-band transport driver |
| * \returns: 0 in case of success or error code < 0 |
| */ |
| bcmos_errno bcmtr_ib_init(void) |
| { |
| return BCM_ERR_OK; |
| } |
| |
| /** Cleanup in-band transport driver |
| * \returns: 0 in case of success or error code < 0 |
| */ |
| void bcmtr_ib_exit(void) |
| { |
| int i; |
| |
| for (i=0; i<BCMTR_MAX_OLTS; i++) |
| { |
| bcmtr_ib_disconnect(i); |
| } |
| } |
| |
| /* Receive packet */ |
| static bcmos_errno _bcmtr_ib_rx(uint32_t device, int s, bcmos_buf **buf, uint8_t *ch) |
| { |
| struct sockaddr_in sa; |
| #if 0 |
| struct iovec iov = {.iov_len = BCMTR_MAX_MTU_SIZE}; |
| struct msghdr msg = { |
| .msg_iov = &iov, .msg_iovlen = 1, |
| .msg_name = &sa, .msg_namelen = sizeof(sa) |
| }; |
| #endif |
| bcmos_buf *b; |
| ssize_t len; |
| |
| b = bcmos_buf_alloc(BCMTR_MAX_MTU_SIZE); |
| if (!b) |
| { |
| bcmos_printf("%s: Failed to allocate buffer\n", __FUNCTION__); |
| return BCM_ERR_NOMEM; |
| } |
| #if 0 |
| iov.iov_base = bcmos_buf_data(b); |
| #endif |
| memset(&sa, 0, sizeof(sa)); |
| len = recv(s, bcmos_buf_data(b), BCMTR_MAX_MTU_SIZE, 0); |
| if (len <= 0) |
| { |
| bcmos_printf("%s: recvmsg() --> %d\n", __FUNCTION__, len); |
| bcmos_buf_free(b); |
| return BCM_ERR_COMM_FAIL; |
| } |
| |
| *ch = dev_info[device].channel; |
| dev_info[device].channel = 0; |
| bcmos_buf_length_set(b, (int)len); |
| *buf = b; |
| |
| #if DEBUG_ONLY |
| bcmos_printf("\nReceived to %d bytes from channel %d/%d port", len, *ch, sa.sin_port); |
| |
| { |
| int ii = 0; |
| unsigned char *c = bcmos_buf_data(b); |
| int size = (int)len; |
| |
| for (ii=0; ii<size; ii++) |
| { |
| if (0==(ii%16)) bcmos_printf("\n"); |
| if (0==(ii%8)) bcmos_printf(" "); |
| bcmos_printf(" %02x", *c); |
| c++; |
| } |
| bcmos_printf("\n"); |
| } |
| #endif |
| |
| return BCM_ERR_OK; |
| } |
| |
| /** Connect to maple device */ |
| bcmos_errno bcmtr_ib_connect(uint8_t device, bcmos_ipv4_address ip_address, uint16_t udp_port) |
| { |
| int r = 0; |
| int s = 0; |
| struct sockaddr_in sa; |
| |
| /*Check for valid device*/ |
| BUG_ON((unsigned)device >= BCMTR_MAX_OLTS); |
| |
| if (dev_info[device].tr_udp_sock) |
| return BCM_ERR_ALREADY; |
| |
| dev_info[device].remote_ip = ip_address; |
| dev_info[device].remote_port = udp_port; |
| |
| /*check that ip address and port have been initialized*/ |
| if(dev_info[device].remote_port == 0 || dev_info[device].remote_ip.u32 == 0) |
| { |
| bcmos_printf("%s: IP address and port not initialized. Error %d\n", __FUNCTION__, r); |
| return BCM_ERR_RANGE; |
| } |
| |
| /* Create socket */ |
| s = socket(AF_INET, SOCK_DGRAM, 0); |
| if (!s) |
| { |
| bcmos_printf("%s: Failed to create socket. Error %d\n", __FUNCTION__, s); |
| return BCM_ERR_COMM_FAIL; |
| } |
| |
| /* Connect to remote */ |
| memset(&sa, 0, sizeof(sa)); |
| sa.sin_family = AF_INET; |
| sa.sin_port = (in_port_t)htons(dev_info[device].remote_port); |
| sa.sin_addr.s_addr = (in_addr_t)htonl(dev_info[device].remote_ip.u32); |
| r = connect(s, (struct sockaddr*)&sa, sizeof(sa)); |
| if (r) |
| { |
| bcmos_printf("%s: Failed to connect socket. Error %d\n", __FUNCTION__, r); |
| close(s); |
| return BCM_ERR_COMM_FAIL; |
| } |
| |
| { |
| socklen_t slen; |
| if (getsockname(s, (struct sockaddr *)&sa, &slen) < 0) |
| { |
| bcmos_printf("%s: Connected socket invalid. Error %d\n", __FUNCTION__, r); |
| close(s); |
| return BCM_ERR_COMM_FAIL; |
| } |
| |
| bcmos_printf("%s: device %d: socket (port %d) connected to %d.%d.%d.%d:%d\n", |
| __FUNCTION__, device, ntohs((uint16_t)sa.sin_port), |
| (int)(dev_info[device].remote_ip.u32 >> 24), (int)((dev_info[device].remote_ip.u32 >> 16) & 0xff), |
| (int)((dev_info[device].remote_ip.u32 >> 8) & 0xff), (int)(dev_info[device].remote_ip.u32 & 0xff), |
| (int)dev_info[device].remote_port); |
| } |
| |
| dev_info[device].tr_udp_sock = s; |
| |
| return BCM_ERR_OK; |
| } |
| |
| /** Disconnect. All buffers are released |
| * \param[in] device Maple device index |
| * \returns: 0 in case of success or error code < 0 |
| */ |
| bcmos_errno bcmtr_ib_disconnect(uint8_t device) |
| { |
| BUG_ON((unsigned)device >= BCMTR_MAX_OLTS); |
| |
| bcmos_printf("%s: disconnecting %d..", __FUNCTION__, device); |
| if (dev_info[device].tr_udp_sock) |
| { |
| int s = dev_info[device].tr_udp_sock; |
| dev_info[device].tr_udp_sock = 0; |
| close(s); |
| } |
| bcmos_printf("done\n"); |
| return BCM_ERR_OK; |
| } |
| |
| /** Send packet to device via in-band interface |
| * \param[in] device Mapole device index |
| * \param[in] channel Logical channel |
| * \param[in] buf Buffer to be transmitted |
| * \returns: 0 in case of success or error code < 0 |
| */ |
| bcmos_errno bcmtr_ib_send(uint8_t device, uint8_t channel, bcmos_buf *buf) |
| { |
| int buflen = bcmos_buf_length(buf); |
| struct iovec iov = { .iov_base = bcmos_buf_data(buf), .iov_len = buflen }; |
| struct msghdr msg = { |
| .msg_iov = &iov, .msg_iovlen = 1, .msg_flags=MSG_DONTWAIT, |
| .msg_name = NULL, .msg_namelen = 0 |
| }; |
| ssize_t len; |
| |
| dev_info[device].channel = channel; |
| |
| len = sendmsg(dev_info[device].tr_udp_sock, &msg, 0); |
| if ((int)len < buflen) |
| { |
| bcmos_printf("%s: sendmsg(%u) --> %d\n", __FUNCTION__, buflen, len); |
| bcmos_buf_free(buf); |
| return BCM_ERR_NOT_CONNECTED; |
| } |
| |
| #if 1 |
| { |
| int ii = 0; |
| unsigned char *c = bcmos_buf_data(buf); |
| struct sockaddr_in sa; |
| socklen_t slen; |
| |
| for (ii=0; ii<(int)len; ii++) |
| { |
| if (0==(ii%16)) bcmos_printf("\n"); |
| if (0==(ii%8)) bcmos_printf(" "); |
| bcmos_printf(" %02x", *c); |
| c++; |
| } |
| |
| if (getsockname(dev_info[device].tr_udp_sock, (struct sockaddr *)&sa, &slen) < 0) |
| { |
| bcmos_printf("%s: Connected socket invalid\n", __FUNCTION__); |
| return BCM_ERR_COMM_FAIL; |
| } |
| bcmos_printf("\nSent %d bytes to channel %d from port %d\t", len, channel, sa.sin_port); |
| } |
| #endif |
| |
| return BCM_ERR_OK; |
| } |
| |
| /* Receive packet from device */ |
| bcmos_errno bcmtr_ib_receive(uint32_t device, uint8_t *channel, bcmos_buf **buf) |
| { |
| if (device >= BCMTR_MAX_OLTS || ! dev_info[device].tr_udp_sock) |
| { |
| return BCM_ERR_PARM; |
| } |
| |
| return _bcmtr_ib_rx(device, dev_info[device].tr_udp_sock, buf, channel); |
| } |