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Add CRC verification

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logicog
2025-10-20 07:29:39 +02:00
parent 8499e9e464
commit 4d17d9ff00
1 changed files with 12 additions and 0 deletions
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httpd/httpd.c
+12
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@@ -49,6 +49,9 @@ __xdata uint16_t short_parsed;
#define TSTATE_CLOSED 3 #define TSTATE_CLOSED 3
#define TSTATE_POST 4 #define TSTATE_POST 4
extern __xdata uint16_t crc_value;
void crc16(__xdata uint8_t *v) __naked;
inline uint8_t is_separator(uint8_t c) inline uint8_t is_separator(uint8_t c)
{ {
@@ -224,6 +227,12 @@ uint8_t stream_upload(uint16_t bptr)
uptr += write_len; uptr += write_len;
write_len = 0; write_len = 0;
// TODO: This is a bit premature, what about a nice web-page saying the device will reset??? // TODO: This is a bit premature, what about a nice web-page saying the device will reset???
print_string("CRC16: "); print_short(crc_value); write_char('\n');
if (crc_value == 0xb001) {
print_string("Checksum OK.");
} else {
print_string("Checksum incorrect!");
}
print_string("Upload to flash done, will reset!\n"); print_string("Upload to flash done, will reset!\n");
reset_chip(); reset_chip();
if (bptr >= uip_len) if (bptr >= uip_len)
@@ -231,6 +240,7 @@ uint8_t stream_upload(uint16_t bptr)
return 1; return 1;
} }
if (p[bptr] == boundary[bindex]) { if (p[bptr] == boundary[bindex]) {
crc16(p + bptr);
bptr++; bptr++;
bindex++; bindex++;
} else { } else {
@@ -239,6 +249,7 @@ uint8_t stream_upload(uint16_t bptr)
write_len += bindex; write_len += bindex;
bindex = 0; bindex = 0;
} }
crc16(p + bptr);
flash_buf[write_len++] = p[bptr++]; flash_buf[write_len++] = p[bptr++];
if (write_len >= FLASHMEM_PAGE_SIZE) { if (write_len >= FLASHMEM_PAGE_SIZE) {
print_string("len: "); print_short(write_len); write_char(' '); print_string("len: "); print_short(write_len); write_char(' ');
@@ -313,6 +324,7 @@ void handle_post(void)
p += 4; // Skip \r\n\r\n sequence at end of preamble of part p += 4; // Skip \r\n\r\n sequence at end of preamble of part
uptr = FIRMWARE_UPLOAD_START; uptr = FIRMWARE_UPLOAD_START;
crc_value = 0;
bindex = 0; bindex = 0;
write_len = 0; write_len = 0;
stream_upload(p - uip_appdata); stream_upload(p - uip_appdata);