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refactoring function to download file from spiffs

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This commit is contained in:
iceman1001 2022-03-12 18:57:06 +01:00
commit 045f30d00d
2 changed files with 46 additions and 33 deletions
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76
client/src/cmdflashmemspiffs.c
View file

@ -89,6 +89,41 @@ out:
return ret_val; return ret_val;
} }
int flashmem_spiffs_download(char *fn, uint8_t fnlen, void **pdest, size_t *destlen) {
// get size from spiffs itself !
clearCommandBuffer();
SendCommandNG(CMD_SPIFFS_STAT, (uint8_t *)fn, fnlen);
PacketResponseNG resp;
if (WaitForResponseTimeout(CMD_SPIFFS_STAT, &resp, 2000) == false) {
PrintAndLogEx(WARNING, "timeout while waiting for reply.");
return PM3_ETIMEOUT;
}
uint32_t len = resp.data.asDwords[0];
if (len == 0) {
PrintAndLogEx(ERR, "error, failed to retrieve file stats on SPIFFSS");
return PM3_EFAILED;
}
*pdest = calloc(len, sizeof(uint8_t));
if (*pdest == false) {
PrintAndLogEx(ERR, "error, cannot allocate memory ");
return PM3_EMALLOC;
}
uint32_t start_index = 0;
PrintAndLogEx(INFO, "downloading "_YELLOW_("%u") " bytes from `" _YELLOW_("%s") "` (spiffs)", len, fn);
if (GetFromDevice(SPIFFS, *pdest, len, start_index, (uint8_t *)fn, fnlen, NULL, -1, true) == 0) {
PrintAndLogEx(FAILED, "error, downloading from spiffs");
free(*pdest);
return PM3_EFLASH;
}
*destlen = len;
return PM3_SUCCESS;
}
static int CmdFlashMemSpiFFSMount(const char *Cmd) { static int CmdFlashMemSpiFFSMount(const char *Cmd) {
CLIParserContext *ctx; CLIParserContext *ctx;
CLIParserInit(&ctx, "mem spiffs mount", CLIParserInit(&ctx, "mem spiffs mount",
@ -501,45 +536,22 @@ static int CmdFlashMemSpiFFSView(const char *Cmd) {
}; };
CLIExecWithReturn(ctx, Cmd, argtable, false); CLIExecWithReturn(ctx, Cmd, argtable, false);
int slen = 0; int fnlen = 0;
char src[32] = {0}; char fn[32] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)src, 32, &slen); CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)fn, 32, &fnlen);
int breaks = arg_get_int_def(ctx, 2, 32); int breaks = arg_get_int_def(ctx, 2, 32);
CLIParserFree(ctx); CLIParserFree(ctx);
// get size from spiffs itself ! uint8_t *dump = NULL;
clearCommandBuffer(); size_t dumplen = 0;
SendCommandNG(CMD_SPIFFS_STAT, (uint8_t *)src, slen); int res = flashmem_spiffs_download(fn, fnlen, (void **)&dump, &dumplen);
PacketResponseNG resp; if (res != PM3_SUCCESS) {
if (WaitForResponseTimeout(CMD_SPIFFS_STAT, &resp, 2000) == false) { return res;
PrintAndLogEx(WARNING, "timeout while waiting for reply.");
return PM3_ETIMEOUT;
}
uint32_t len = resp.data.asDwords[0];
if (len == 0) {
PrintAndLogEx(ERR, "error, failed to retrieve file stats on SPIFFSS");
return PM3_EFAILED;
}
uint8_t *dump = calloc(len, sizeof(uint8_t));
if (!dump) {
PrintAndLogEx(ERR, "error, cannot allocate memory ");
return PM3_EMALLOC;
}
uint32_t start_index = 0;
PrintAndLogEx(INFO, "downloading "_YELLOW_("%u") " bytes from `" _YELLOW_("%s") "` (spiffs)", len, src);
if (!GetFromDevice(SPIFFS, dump, len, start_index, (uint8_t *)src, slen, NULL, -1, true)) {
PrintAndLogEx(FAILED, "error, downloading from spiffs");
free(dump);
return PM3_EFLASH;
} }
PrintAndLogEx(NORMAL, ""); PrintAndLogEx(NORMAL, "");
print_hex_break(dump, len, breaks); print_hex_break(dump, dumplen, breaks);
PrintAndLogEx(NORMAL, ""); PrintAndLogEx(NORMAL, "");
free(dump); free(dump);
return PM3_SUCCESS; return PM3_SUCCESS;

1
client/src/cmdflashmemspiffs.h
View file

@ -23,5 +23,6 @@
int CmdFlashMemSpiFFS(const char *Cmd); int CmdFlashMemSpiFFS(const char *Cmd);
int flashmem_spiffs_load(char *destfn, uint8_t *data, size_t datalen); int flashmem_spiffs_load(char *destfn, uint8_t *data, size_t datalen);
int flashmem_spiffs_download(char *fn, uint8_t fnlen, void **pdest, size_t *destlen);
#endif #endif