4 * Copyright (C) 2008 Dave Hansen <dave@sr71.net>
6 * This software may be redistributed and/or modified under the terms of
7 * the GNU General Public License ("GPL") version 2 as published by the
8 * Free Software Foundation.
11 #include "eyefi-config.h"
13 int eyefi_debug_level = 1;
15 int eyefi_printf(const char *fmt, ...)
21 r = vprintf(fmt, args);
27 static char *eyefi_file_name(enum eyefi_file file)
30 case REQC: return "reqc";
31 case REQM: return "reqm";
32 case RSPC: return "rspc";
33 case RSPM: return "rspm";
39 char *eyefi_file_on(enum eyefi_file file, char *mnt)
41 char *filename = eyefi_file_name(file);
42 char *full = malloc(PATHNAME_MAX);
47 sprintf(&full[0], "%s/EyeFi/%s", mnt, filename);
48 debug_printf(3, "eyefile nr: %d on '%s' is: '%s'\n", file, mnt, &full[0]);
53 * This lets us get away with a static allocation
54 * for the buffer. We make it size*2 so that we're
55 * guaranteed to be able to get a "size" buffer
56 * aligned inside of the larger one.
58 static char unaligned_buf[EYEFI_BUF_SIZE*2];
59 static void *eyefi_buf;
61 void *eyefi_response(void)
66 void dumpbuf(const char *buffer, int bytesToWrite)
69 static char linebuf[500];
71 for (i=0; i < bytesToWrite; i += 16) {
72 char *tmpbuf = &linebuf[0];
73 unsigned long sum = 0;
75 #define lprintf(args...) do { \
76 tmpbuf += sprintf(tmpbuf, ## args);\
79 lprintf("[%03d]: ", i);
80 for (j=0; j < 16; j++) {
81 u8 c = ((unsigned char *)buffer)[i+j];
82 lprintf("%02x ", (unsigned int)c);
86 for (j=0; j < 16; j++) {
87 u8 c = ((unsigned char *)buffer)[i+j];
88 if (c >= 'a' && c <= 'z')
90 else if (c >= 'A' && c <= 'Z')
92 else if (c >= '0' && c <= '9')
94 else if (c >= 0x20 && c <= 127)
102 printf("%s", linebuf);
108 void read_from(enum eyefi_file);
109 void write_to(enum eyefi_file, void *, int);
111 struct card_seq_num eyefi_seq;
112 struct card_seq_num read_seq_from(enum eyefi_file file)
114 struct card_seq_num *ret;
121 * For O_DIRECT writes to files, we need
122 * to be 512 byte aligned on Linux, I think.
123 * So, just align this to something big
124 * and be done with it. FIXME :)
126 * This probably isn't necessary on chdk,
127 * since I don't think it buffers I/O at
132 unsigned long addr = (unsigned long)&unaligned_buf[EYEFI_BUF_SIZE];
133 addr &= ~(EYEFI_BUF_SIZE-1);
134 eyefi_buf = (void *)addr;
135 debug_printf(4, "buf: %p\n", eyefi_buf);
136 debug_printf(4, "unaligned: %p\n", &unaligned_buf[0]);
140 * The real manager does this so we might
143 void zero_card_files(void)
145 char zbuf[EYEFI_BUF_SIZE];
147 memset(&zbuf[0], 0, EYEFI_BUF_SIZE);
148 //write_to(REQM, zbuf, EYEFI_BUF_SIZE);
149 write_to(REQC, zbuf, EYEFI_BUF_SIZE);
150 write_to(RSPM, zbuf, EYEFI_BUF_SIZE);
151 write_to(RSPC, zbuf, EYEFI_BUF_SIZE);
162 if (eyefi_buf != NULL)
165 debug_printf(2, "Initializing card...\n");
166 mnt = locate_eyefi_mount();
172 eyefi_seq = read_seq_from(RSPC);
173 if (eyefi_seq.seq == 0)
174 eyefi_seq.seq = 0x1234;
176 debug_printf(2, "Done initializing card...\n");
177 debug_printf(2, "seq was: %04lx\n", eyefi_seq.seq);
180 static char *eyefi_file(enum eyefi_file file)
183 return eyefi_file_on(file, locate_eyefi_mount());
186 void read_from(enum eyefi_file __file)
190 char *file = eyefi_file(__file);
195 fd = open(file, O_RDONLY);
197 open_error(file, fd);
198 retcntl = fd_dont_cache(fd);
203 ret = read(fd, eyefi_buf, EYEFI_BUF_SIZE);
204 if (eyefi_debug_level > 3)
205 dumpbuf(eyefi_buf, 128);
208 perror("bad read, retrying...");
212 debug_printf(4, "read '%s': bytes: %d fcntl: %d\n", file, ret, retcntl);
214 * There was a time when I was carefully recording how each response
215 * looked, and I counted the zeros in each response. I don't care
220 for (i=0; i < EYEFI_BUF_SIZE; i++) {
221 c = ((char *)eyefi_buf)[i];
233 void write_to(enum eyefi_file __file, void *stuff, int len)
243 file = eyefi_file(__file);
247 if (eyefi_debug_level > 3) {
248 debug_printf(3, "%s('%s', ..., %d)\n", __func__, file, len);
251 memset(eyefi_buf, 0, EYEFI_BUF_SIZE);
252 memcpy(eyefi_buf, stuff, len);
253 fd = open(file, O_RDWR|O_CREAT, 0600);
255 open_error(file, fd);
256 ret = fd_dont_cache(fd);
258 open_error(file, ret);
259 if (eyefi_debug_level > 3)
260 dumpbuf(eyefi_buf, 128);
261 ret = write(fd, eyefi_buf, EYEFI_BUF_SIZE);
263 debug_printf(3, "wrote %d bytes to '%s' (string was %d bytes)\n", ret, file, len);
265 fprintf(stderr, "error writing to '%s': ", file);
272 #define write_struct(file, s) write_to((file), s, sizeof(*(s)))
277 * Oddly enough, the sequence number appears
278 * to be of normal endianness.
280 //u32 tmpseq = be32_to_u32(seq.seq);
281 //seq.seq = u32_to_be32(tmpseq+1);
283 write_struct(REQC, &eyefi_seq);
286 u32 eyefi_current_seq(void)
288 return eyefi_seq.seq;
291 int wait_for_response(void)
296 debug_printf(3, "waiting for response...\n");
298 for (i = 0; i < 10; i++) {
299 struct card_seq_num cardseq = read_seq_from(RSPC);
300 debug_printf(3, "read rsp code: %lx, looking for: %lx raw: %lx\n", rsp, eyefi_current_seq(),
303 if (rsp == eyefi_current_seq()) {
307 if (eyefi_debug_level > 4) {
309 debug_printf(1, "command issued was: '%c'\n", ((char *)eyefi_buf)[0]);
314 debug_printf(1, "never saw card seq response\n");
317 debug_printf(3, "got good seq (%ld), reading RSPM...\n", rsp);
319 debug_printf(3, "done reading RSPM\n");
323 char *net_test_states[] = {
326 "verifying network key",
328 "testing connection to Eye-Fi server",
332 char *net_test_state_name(u8 state)
334 int size = ARRAY_SIZE(net_test_states);
337 return net_test_states[state];
340 const char *net_types[] = {
347 const char net_type_unknown[] = "unknown";
349 const char *net_type_name(u8 type)
351 int size = ARRAY_SIZE(net_types);
352 debug_printf(3, "%s(%d): '%s' size: %d\n", __func__, type, net_types[type], size);
354 return net_type_unknown;
355 return net_types[type];
358 static char lower(char c)
360 if ((c >= 'A') && (c <= 'Z'))
368 if ((c >= '0') && (c <= '9'))
370 else if ((c >= 'a') && (c <= 'z'))
371 return (c - 'a') + 10;
372 debug_printf(5, "non-hex character: '%c'/'%c'\n", c, lc);
377 * Take a string like "0ab1" and make it
378 * a series of bytes: { 0x0a, 0xb1 }
380 * @len is the strlen() of the ascii
382 * Destroys the original string.
384 char *convert_ascii_to_hex(char *ascii, int len)
388 fprintf(stderr, "%s() must be even number of bytes: %d\n",
392 for (i=0; i < len; i+=2) {
393 int high = atoh(ascii[i]);
394 int low = atoh(ascii[i+1]);
395 u8 byte = (high<<4 | low);
396 if (high < 0 || low < 0)
398 debug_printf(6, "high: %02x low: %02x, both: %02x\n", high, low, byte);
401 for (i=len/2; i < len; i++)
406 struct wpa_key *make_wpa_key(char *essid, char *pass)
408 struct wpa_key *key = malloc(sizeof(*key));
410 if (strlen(pass) == WPA_KEY_BYTES*2) {
412 debug_printf(2, "Interpreting password as hex WPA key\n");
413 hex_pass = convert_ascii_to_hex(pass, WPA_KEY_BYTES*2);
416 memcpy(&key->key[0], pass, WPA_KEY_BYTES);
418 debug_printf(2, "Interpreting password as ASCII WPA key\n");
419 pbkdf2_sha1(pass, essid, strlen(essid), 4096,
420 &key->key[0], WPA_KEY_BYTES);
425 int card_info_cmd(enum card_info_subcommand cmd)
427 struct card_info_req cir;
429 cir.subcommand = cmd;
431 write_struct(REQM, &cir);
432 return wait_for_response();
435 u32 fetch_log_length(void)
437 debug_printf(3, "%s()\n", __func__);
438 card_info_cmd(LOG_LEN);
439 struct card_info_log_len *loglen = eyefi_buf;
440 return be32_to_u32(loglen->val);
443 struct card_firmware_info *fetch_card_firmware_info(void)
445 debug_printf(2, "%s()\n", __func__);
446 card_info_cmd(FIRMWARE_INFO);
447 return (struct card_firmware_info *)eyefi_buf;
467 strcpy(tb.name, "www.sr71.net/");
468 tb.l1 = strlen(tb.name);
469 for (i = 0; i < 10; i++) {
472 write_struct(RSPM, &z);
473 write_struct(REQM, &tb);
475 printf("buffer after O %d:\n", i);
476 dumpbuf(eyefi_buf, 64);
477 printf("----------------\n");
478 write_struct(REQM, &tb);
480 printf("card info(%d):\n", i);
481 dumpbuf(eyefi_buf, 64);
482 printf("-----------\n");
486 strcpy(tb.name, "/public/eyefi/servname");
487 strcpy(tb.name, "/config/networks.xml");
488 //tb.len = strlen(tb.name);
490 for (c = 'O'; c <= 'O'; c++) {
492 write_struct(REQM, &tb);
494 printf("dumping buffer:\n");
495 dumpbuf(eyefi_buf, 64);
496 printf("buffer dump done\n");
500 struct card_info_rsp_key *fetch_card_key(void)
502 struct card_info_rsp_key *key;
504 debug_printf(2, "%s()\n", __func__);
505 card_info_cmd(CARD_KEY);
510 int issue_noarg_command(u8 cmd)
512 struct noarg_request req;
513 debug_printf(4, "%s() cmd: %d\n", __func__, cmd);
515 write_struct(REQM, &req);
516 return wait_for_response();
519 struct scanned_net_list *scan_nets(void)
521 struct scanned_net_list *scanned;
523 debug_printf(2, "%s()\n", __func__);
524 issue_noarg_command('g');
525 scanned = eyefi_response();
529 struct configured_net_list *fetch_configured_nets(void)
531 struct configured_net_list *configured;
533 debug_printf(2, "%s()\n", __func__);
534 issue_noarg_command('l');
535 configured = eyefi_buf;
539 void reboot_card(void)
541 debug_printf(2, "%s()\n", __func__);
542 issue_noarg_command('b');
545 void copy_wep_key(struct wep_key *dst, struct wep_key *src)
547 memcpy(&dst->key, &src->key, sizeof(*dst));
550 void copy_wpa_key(struct wpa_key *dst, struct wpa_key *src)
552 memcpy(&dst->key, &src->key, sizeof(*dst));
555 int network_action(char cmd, char *essid, char *wpa_ascii)
557 struct net_request nr;
558 memset(&nr, 0, sizeof(nr));
561 strcpy(&nr.essid[0], essid);
562 nr.essid_len = strlen(essid);
563 struct wpa_key *wpakey;
565 wpakey = make_wpa_key(essid, wpa_ascii);
566 nr.key.len = sizeof(*wpakey);
567 copy_wpa_key(&nr.key.wpa, wpakey);
569 write_struct(REQM, &nr);
570 return wait_for_response();
573 void add_network(char *essid, char *wpa_ascii)
575 debug_printf(2, "%s()\n", __func__);
576 network_action('a', essid, wpa_ascii);
579 void remove_network(char *essid)
581 debug_printf(2, "%s()\n", __func__);
582 network_action('d', essid, NULL);
585 int get_log_at_offset(u32 offset)
587 struct fetch_log_cmd cmd;
589 cmd.offset = u32_to_be32(offset);
591 debug_printf(2, "getting log at offset: %08lx\n", offset);
592 write_struct(REQM, &cmd);
593 return wait_for_response();
596 void add_log_piece(u8 *log, int log_len, u8 *piece, int piece_pos, int piece_size)
598 debug_printf(2, "%s(%p, %d, %p, %d, %d)\n", __func__, log, log_len, piece, piece_pos, piece_size);
599 if (piece_pos + piece_size > log_len) {
600 int overflow_by = (piece_pos + piece_size) - log_len;
601 int piece_overrun_pos = piece_size - overflow_by;
602 piece_size -= overflow_by;
603 memcpy(&log[0], &piece[piece_overrun_pos], overflow_by);
604 debug_printf(2, "writing %d bytes to logbuf[0] from piece[%d]\n",
605 overflow_by, piece_overrun_pos);
607 debug_printf(2, "writing %d bytes to logbuf[%d]\n", piece_size, piece_pos);
608 memcpy(&log[piece_pos], piece, piece_size);
611 int get_log_into(u8 *resbuf)
618 u32 __log_size = fetch_log_length();
619 int log_pieces = __log_size/EYEFI_BUF_SIZE;
624 /* There are 8 bytes of header in the first log entry
625 * to specify where the log starts and ends */
626 u32 log_size = __log_size - 8;
628 for (i = 0; i < log_pieces; i++) {
629 debug_printf(1, "fetching EyeFi card log part %d/%d...",
632 ret = get_log_at_offset(EYEFI_BUF_SIZE*i);
633 debug_printf(1, "done\n");
637 struct first_log_response *log = eyefi_buf;
638 log_end = log_size - be32_to_u32(log->log_end);
639 log_start = log_size - be32_to_u32(log->log_start);
640 debug_printf(2, "log end: 0x%04lx\n", log_end);
641 debug_printf(2, "log start: 0x%04lx\n", log_start);
642 log_piece = &log->data[0];
643 log_piece_size = ARRAY_SIZE(log->data);
645 struct rest_log_response *log = eyefi_buf;
646 log_piece = &log->data[0];
647 log_piece_size = ARRAY_SIZE(log->data);
649 add_log_piece(resbuf, log_size, log_piece, log_start, log_piece_size);
650 total_bytes += log_piece_size;
651 log_start += log_piece_size;
652 log_start = log_start % log_size;