486 lines
14 KiB
C
486 lines
14 KiB
C
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#define PROGRAM_NAME "recv_image"
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#define _XOPEN_SOURCE 500
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#define _BSD_SOURCE /* struct ip_mreq */
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#include <errno.h>
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#include <error.h>
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#include <stdio.h>
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#include <netdb.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <sys/ioctl.h>
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#include <sys/time.h>
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#include <crc32.h>
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#include "mtd/mtd-user.h"
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#include "mcast_image.h"
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#include "common.h"
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#define WBUF_SIZE 4096
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struct eraseblock {
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uint32_t flash_offset;
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unsigned char wbuf[WBUF_SIZE];
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int wbuf_ofs;
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int nr_pkts;
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int *pkt_indices;
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uint32_t crc;
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};
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int main(int argc, char **argv)
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{
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struct addrinfo *ai;
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struct addrinfo hints;
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struct addrinfo *runp;
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int ret;
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int sock;
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ssize_t len;
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int flfd;
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struct mtd_info_user meminfo;
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unsigned char *eb_buf, *decode_buf, **src_pkts;
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int nr_blocks = 0;
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int pkts_per_block;
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int block_nr = -1;
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uint32_t image_crc = 0;
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int total_pkts = 0;
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int ignored_pkts = 0;
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loff_t mtdoffset = 0;
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int badcrcs = 0;
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int duplicates = 0;
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int file_mode = 0;
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struct fec_parms *fec = NULL;
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int i;
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struct eraseblock *eraseblocks = NULL;
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uint32_t start_seq = 0;
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struct timeval start, now;
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unsigned long fec_time = 0, flash_time = 0, crc_time = 0,
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rflash_time = 0, erase_time = 0, net_time = 0;
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if (argc != 4) {
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fprintf(stderr, "usage: %s <host> <port> <mtddev>\n",
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PROGRAM_NAME);
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exit(1);
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}
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/* Open the device */
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flfd = open(argv[3], O_RDWR);
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if (flfd >= 0) {
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/* Fill in MTD device capability structure */
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if (ioctl(flfd, MEMGETINFO, &meminfo) != 0) {
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perror("MEMGETINFO");
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close(flfd);
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flfd = -1;
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} else {
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printf("Receive to MTD device %s with erasesize %d\n",
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argv[3], meminfo.erasesize);
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}
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}
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if (flfd == -1) {
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/* Try again, as if it's a file */
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flfd = open(argv[3], O_CREAT|O_TRUNC|O_RDWR, 0644);
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if (flfd < 0) {
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perror("open");
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exit(1);
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}
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meminfo.erasesize = 131072;
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file_mode = 1;
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printf("Receive to file %s with (assumed) erasesize %d\n",
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argv[3], meminfo.erasesize);
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}
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pkts_per_block = (meminfo.erasesize + PKT_SIZE - 1) / PKT_SIZE;
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eb_buf = malloc(pkts_per_block * PKT_SIZE);
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decode_buf = malloc(pkts_per_block * PKT_SIZE);
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if (!eb_buf && !decode_buf) {
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fprintf(stderr, "No memory for eraseblock buffer\n");
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exit(1);
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}
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src_pkts = malloc(sizeof(unsigned char *) * pkts_per_block);
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if (!src_pkts) {
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fprintf(stderr, "No memory for decode packet pointers\n");
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exit(1);
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}
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memset(&hints, 0, sizeof(hints));
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hints.ai_flags = AI_ADDRCONFIG;
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hints.ai_socktype = SOCK_DGRAM;
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ret = getaddrinfo(argv[1], argv[2], &hints, &ai);
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if (ret) {
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fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(ret));
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exit(1);
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}
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runp = ai;
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for (runp = ai; runp; runp = runp->ai_next) {
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sock = socket(runp->ai_family, runp->ai_socktype,
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runp->ai_protocol);
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if (sock == -1) {
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perror("socket");
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continue;
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}
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if (runp->ai_family == AF_INET &&
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IN_MULTICAST( ntohl(((struct sockaddr_in *)runp->ai_addr)->sin_addr.s_addr))) {
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struct ip_mreq rq;
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rq.imr_multiaddr = ((struct sockaddr_in *)runp->ai_addr)->sin_addr;
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rq.imr_interface.s_addr = INADDR_ANY;
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if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, &rq, sizeof(rq))) {
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perror("IP_ADD_MEMBERSHIP");
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close(sock);
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continue;
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}
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} else if (runp->ai_family == AF_INET6 &&
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((struct sockaddr_in6 *)runp->ai_addr)->sin6_addr.s6_addr[0] == 0xff) {
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struct ipv6_mreq rq;
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rq.ipv6mr_multiaddr = ((struct sockaddr_in6 *)runp->ai_addr)->sin6_addr;
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rq.ipv6mr_interface = 0;
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if (setsockopt(sock, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, &rq, sizeof(rq))) {
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perror("IPV6_ADD_MEMBERSHIP");
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close(sock);
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continue;
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}
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}
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if (bind(sock, runp->ai_addr, runp->ai_addrlen)) {
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perror("bind");
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close(sock);
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continue;
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}
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break;
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}
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if (!runp)
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exit(1);
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while (1) {
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struct image_pkt thispkt;
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len = read(sock, &thispkt, sizeof(thispkt));
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if (len < 0) {
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perror("read socket");
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break;
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}
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if (len < sizeof(thispkt)) {
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fprintf(stderr, "Wrong length %zd bytes (expected %zu)\n",
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len, sizeof(thispkt));
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continue;
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}
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if (!eraseblocks) {
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image_crc = thispkt.hdr.totcrc;
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start_seq = ntohl(thispkt.hdr.pkt_sequence);
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if (meminfo.erasesize != ntohl(thispkt.hdr.blocksize)) {
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fprintf(stderr, "Erasesize mismatch (0x%x not 0x%x)\n",
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ntohl(thispkt.hdr.blocksize), meminfo.erasesize);
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exit(1);
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}
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nr_blocks = ntohl(thispkt.hdr.nr_blocks);
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fec = fec_new(pkts_per_block, ntohs(thispkt.hdr.nr_pkts));
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eraseblocks = malloc(nr_blocks * sizeof(*eraseblocks));
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if (!eraseblocks) {
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fprintf(stderr, "No memory for block map\n");
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exit(1);
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}
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for (i = 0; i < nr_blocks; i++) {
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eraseblocks[i].pkt_indices = malloc(sizeof(int) * pkts_per_block);
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if (!eraseblocks[i].pkt_indices) {
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fprintf(stderr, "Failed to allocate packet indices\n");
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exit(1);
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}
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eraseblocks[i].nr_pkts = 0;
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if (!file_mode) {
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if (mtdoffset >= meminfo.size) {
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fprintf(stderr, "Run out of space on flash\n");
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exit(1);
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}
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#if 1 /* Deliberately use bad blocks... test write failures */
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while (ioctl(flfd, MEMGETBADBLOCK, &mtdoffset) > 0) {
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printf("Skipping flash bad block at %08x\n", (uint32_t)mtdoffset);
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mtdoffset += meminfo.erasesize;
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}
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#endif
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}
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eraseblocks[i].flash_offset = mtdoffset;
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mtdoffset += meminfo.erasesize;
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eraseblocks[i].wbuf_ofs = 0;
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}
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gettimeofday(&start, NULL);
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}
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if (image_crc != thispkt.hdr.totcrc) {
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fprintf(stderr, "\nImage CRC changed from 0x%x to 0x%x. Aborting\n",
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ntohl(image_crc), ntohl(thispkt.hdr.totcrc));
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exit(1);
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}
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block_nr = ntohl(thispkt.hdr.block_nr);
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if (block_nr >= nr_blocks) {
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fprintf(stderr, "\nErroneous block_nr %d (> %d)\n",
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block_nr, nr_blocks);
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exit(1);
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}
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for (i=0; i<eraseblocks[block_nr].nr_pkts; i++) {
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if (eraseblocks[block_nr].pkt_indices[i] == ntohs(thispkt.hdr.pkt_nr)) {
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// printf("Discarding duplicate packet at %08x pkt %d\n",
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// block_nr * meminfo.erasesize, eraseblocks[block_nr].pkt_indices[i]);
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duplicates++;
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break;
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}
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}
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if (i < eraseblocks[block_nr].nr_pkts) {
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continue;
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}
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if (eraseblocks[block_nr].nr_pkts >= pkts_per_block) {
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/* We have a block which we didn't really need */
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eraseblocks[block_nr].nr_pkts++;
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ignored_pkts++;
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continue;
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}
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if (mtd_crc32(-1, thispkt.data, PKT_SIZE) != ntohl(thispkt.hdr.thiscrc)) {
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printf("\nDiscard %08x pkt %d with bad CRC (%08x not %08x)\n",
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block_nr * meminfo.erasesize, ntohs(thispkt.hdr.pkt_nr),
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mtd_crc32(-1, thispkt.data, PKT_SIZE),
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ntohl(thispkt.hdr.thiscrc));
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badcrcs++;
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continue;
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}
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pkt_again:
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eraseblocks[block_nr].pkt_indices[eraseblocks[block_nr].nr_pkts++] =
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ntohs(thispkt.hdr.pkt_nr);
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total_pkts++;
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if (!(total_pkts % 50) || total_pkts == pkts_per_block * nr_blocks) {
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uint32_t pkts_sent = ntohl(thispkt.hdr.pkt_sequence) - start_seq + 1;
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long time_msec;
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gettimeofday(&now, NULL);
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time_msec = ((now.tv_usec - start.tv_usec) / 1000) +
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(now.tv_sec - start.tv_sec) * 1000;
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printf("\rReceived %d/%d (%d%%) in %lds @%ldKiB/s, %d lost (%d%%), %d dup/xs ",
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total_pkts, nr_blocks * pkts_per_block,
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total_pkts * 100 / nr_blocks / pkts_per_block,
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time_msec / 1000,
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total_pkts * PKT_SIZE / 1024 * 1000 / time_msec,
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pkts_sent - total_pkts - duplicates - ignored_pkts,
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(pkts_sent - total_pkts - duplicates - ignored_pkts) * 100 / pkts_sent,
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duplicates + ignored_pkts);
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fflush(stdout);
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}
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if (eraseblocks[block_nr].wbuf_ofs + PKT_SIZE < WBUF_SIZE) {
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/* New packet doesn't full the wbuf */
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memcpy(eraseblocks[block_nr].wbuf + eraseblocks[block_nr].wbuf_ofs,
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thispkt.data, PKT_SIZE);
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eraseblocks[block_nr].wbuf_ofs += PKT_SIZE;
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} else {
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int fits = WBUF_SIZE - eraseblocks[block_nr].wbuf_ofs;
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ssize_t wrotelen;
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static int faked = 1;
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memcpy(eraseblocks[block_nr].wbuf + eraseblocks[block_nr].wbuf_ofs,
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thispkt.data, fits);
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wrotelen = pwrite(flfd, eraseblocks[block_nr].wbuf, WBUF_SIZE,
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eraseblocks[block_nr].flash_offset);
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if (wrotelen < WBUF_SIZE || (block_nr == 5 && eraseblocks[block_nr].nr_pkts == 5 && !faked)) {
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faked = 1;
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if (wrotelen < 0)
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perror("\npacket write");
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else
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fprintf(stderr, "\nshort write of packet wbuf\n");
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if (!file_mode) {
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struct erase_info_user erase;
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/* FIXME: Perhaps we should store pkt crcs and try
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to recover data from the offending eraseblock */
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/* We have increased nr_pkts but not yet flash_offset */
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erase.start = eraseblocks[block_nr].flash_offset &
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~(meminfo.erasesize - 1);
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erase.length = meminfo.erasesize;
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printf("Will erase at %08x len %08x (bad write was at %08x)\n",
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erase.start, erase.length, eraseblocks[block_nr].flash_offset);
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if (ioctl(flfd, MEMERASE, &erase)) {
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perror("MEMERASE");
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exit(1);
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}
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if (mtdoffset >= meminfo.size) {
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fprintf(stderr, "Run out of space on flash\n");
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exit(1);
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}
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while (ioctl(flfd, MEMGETBADBLOCK, &mtdoffset) > 0) {
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printf("Skipping flash bad block at %08x\n", (uint32_t)mtdoffset);
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mtdoffset += meminfo.erasesize;
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if (mtdoffset >= meminfo.size) {
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fprintf(stderr, "Run out of space on flash\n");
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exit(1);
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}
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}
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eraseblocks[block_nr].flash_offset = mtdoffset;
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printf("Block #%d will now be at %08lx\n", block_nr, (long)mtdoffset);
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total_pkts -= eraseblocks[block_nr].nr_pkts;
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eraseblocks[block_nr].nr_pkts = 0;
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eraseblocks[block_nr].wbuf_ofs = 0;
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mtdoffset += meminfo.erasesize;
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goto pkt_again;
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}
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else /* Usually nothing we can do in file mode */
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exit(1);
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}
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eraseblocks[block_nr].flash_offset += WBUF_SIZE;
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/* Copy the remainder into the wbuf */
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memcpy(eraseblocks[block_nr].wbuf, &thispkt.data[fits], PKT_SIZE - fits);
|
||
|
|
eraseblocks[block_nr].wbuf_ofs = PKT_SIZE - fits;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (eraseblocks[block_nr].nr_pkts == pkts_per_block) {
|
||
|
|
eraseblocks[block_nr].crc = ntohl(thispkt.hdr.block_crc);
|
||
|
|
|
||
|
|
if (total_pkts == nr_blocks * pkts_per_block)
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
printf("\n");
|
||
|
|
gettimeofday(&now, NULL);
|
||
|
|
net_time = (now.tv_usec - start.tv_usec) / 1000;
|
||
|
|
net_time += (now.tv_sec - start.tv_sec) * 1000;
|
||
|
|
close(sock);
|
||
|
|
for (block_nr = 0; block_nr < nr_blocks; block_nr++) {
|
||
|
|
ssize_t rwlen;
|
||
|
|
gettimeofday(&start, NULL);
|
||
|
|
eraseblocks[block_nr].flash_offset -= meminfo.erasesize;
|
||
|
|
rwlen = pread(flfd, eb_buf, meminfo.erasesize, eraseblocks[block_nr].flash_offset);
|
||
|
|
|
||
|
|
gettimeofday(&now, NULL);
|
||
|
|
rflash_time += (now.tv_usec - start.tv_usec) / 1000;
|
||
|
|
rflash_time += (now.tv_sec - start.tv_sec) * 1000;
|
||
|
|
if (rwlen < 0) {
|
||
|
|
perror("read");
|
||
|
|
/* Argh. Perhaps we could go back and try again, but if the flash is
|
||
|
|
going to fail to read back what we write to it, and the whole point
|
||
|
|
in this program is to write to it, what's the point? */
|
||
|
|
fprintf(stderr, "Packets we wrote to flash seem to be unreadable. Aborting\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
memcpy(eb_buf + meminfo.erasesize, eraseblocks[block_nr].wbuf,
|
||
|
|
eraseblocks[block_nr].wbuf_ofs);
|
||
|
|
|
||
|
|
for (i=0; i < pkts_per_block; i++)
|
||
|
|
src_pkts[i] = &eb_buf[i * PKT_SIZE];
|
||
|
|
|
||
|
|
gettimeofday(&start, NULL);
|
||
|
|
if (fec_decode(fec, src_pkts, eraseblocks[block_nr].pkt_indices, PKT_SIZE)) {
|
||
|
|
/* Eep. This cannot happen */
|
||
|
|
printf("The world is broken. fec_decode() returned error\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
gettimeofday(&now, NULL);
|
||
|
|
fec_time += (now.tv_usec - start.tv_usec) / 1000;
|
||
|
|
fec_time += (now.tv_sec - start.tv_sec) * 1000;
|
||
|
|
|
||
|
|
for (i=0; i < pkts_per_block; i++)
|
||
|
|
memcpy(&decode_buf[i*PKT_SIZE], src_pkts[i], PKT_SIZE);
|
||
|
|
|
||
|
|
/* Paranoia */
|
||
|
|
gettimeofday(&start, NULL);
|
||
|
|
if (mtd_crc32(-1, decode_buf, meminfo.erasesize) != eraseblocks[block_nr].crc) {
|
||
|
|
printf("\nCRC mismatch for block #%d: want %08x got %08x\n",
|
||
|
|
block_nr, eraseblocks[block_nr].crc,
|
||
|
|
mtd_crc32(-1, decode_buf, meminfo.erasesize));
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
gettimeofday(&now, NULL);
|
||
|
|
crc_time += (now.tv_usec - start.tv_usec) / 1000;
|
||
|
|
crc_time += (now.tv_sec - start.tv_sec) * 1000;
|
||
|
|
start = now;
|
||
|
|
|
||
|
|
if (!file_mode) {
|
||
|
|
struct erase_info_user erase;
|
||
|
|
|
||
|
|
erase.start = eraseblocks[block_nr].flash_offset;
|
||
|
|
erase.length = meminfo.erasesize;
|
||
|
|
|
||
|
|
printf("\rErasing block at %08x...", erase.start);
|
||
|
|
|
||
|
|
if (ioctl(flfd, MEMERASE, &erase)) {
|
||
|
|
perror("MEMERASE");
|
||
|
|
/* This block has dirty data on it. If the erase failed, we're screwed */
|
||
|
|
fprintf(stderr, "Erase to clean FEC data from flash failed. Aborting\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
gettimeofday(&now, NULL);
|
||
|
|
erase_time += (now.tv_usec - start.tv_usec) / 1000;
|
||
|
|
erase_time += (now.tv_sec - start.tv_sec) * 1000;
|
||
|
|
start = now;
|
||
|
|
}
|
||
|
|
else printf("\r");
|
||
|
|
write_again:
|
||
|
|
rwlen = pwrite(flfd, decode_buf, meminfo.erasesize, eraseblocks[block_nr].flash_offset);
|
||
|
|
if (rwlen < meminfo.erasesize) {
|
||
|
|
if (rwlen < 0) {
|
||
|
|
perror("\ndecoded data write");
|
||
|
|
} else
|
||
|
|
fprintf(stderr, "\nshort write of decoded data\n");
|
||
|
|
|
||
|
|
if (!file_mode) {
|
||
|
|
struct erase_info_user erase;
|
||
|
|
erase.start = eraseblocks[block_nr].flash_offset;
|
||
|
|
erase.length = meminfo.erasesize;
|
||
|
|
|
||
|
|
printf("Erasing failed block at %08x\n",
|
||
|
|
eraseblocks[block_nr].flash_offset);
|
||
|
|
|
||
|
|
if (ioctl(flfd, MEMERASE, &erase)) {
|
||
|
|
perror("MEMERASE");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
if (mtdoffset >= meminfo.size) {
|
||
|
|
fprintf(stderr, "Run out of space on flash\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
while (ioctl(flfd, MEMGETBADBLOCK, &mtdoffset) > 0) {
|
||
|
|
printf("Skipping flash bad block at %08x\n", (uint32_t)mtdoffset);
|
||
|
|
mtdoffset += meminfo.erasesize;
|
||
|
|
if (mtdoffset >= meminfo.size) {
|
||
|
|
fprintf(stderr, "Run out of space on flash\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
printf("Will try again at %08lx...", (long)mtdoffset);
|
||
|
|
eraseblocks[block_nr].flash_offset = mtdoffset;
|
||
|
|
|
||
|
|
goto write_again;
|
||
|
|
}
|
||
|
|
else /* Usually nothing we can do in file mode */
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
gettimeofday(&now, NULL);
|
||
|
|
flash_time += (now.tv_usec - start.tv_usec) / 1000;
|
||
|
|
flash_time += (now.tv_sec - start.tv_sec) * 1000;
|
||
|
|
|
||
|
|
printf("wrote image block %08x (%d pkts) ",
|
||
|
|
block_nr * meminfo.erasesize, eraseblocks[block_nr].nr_pkts);
|
||
|
|
fflush(stdout);
|
||
|
|
}
|
||
|
|
close(flfd);
|
||
|
|
printf("Net rx %ld.%03lds\n", net_time / 1000, net_time % 1000);
|
||
|
|
printf("flash rd %ld.%03lds\n", rflash_time / 1000, rflash_time % 1000);
|
||
|
|
printf("FEC time %ld.%03lds\n", fec_time / 1000, fec_time % 1000);
|
||
|
|
printf("CRC time %ld.%03lds\n", crc_time / 1000, crc_time % 1000);
|
||
|
|
printf("flash wr %ld.%03lds\n", flash_time / 1000, flash_time % 1000);
|
||
|
|
printf("flash er %ld.%03lds\n", erase_time / 1000, erase_time % 1000);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|