added a lf t55xx view command to view t55xx dump files

CHANGELOG.md

@@ -3,6 +3,8 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+- Added `lf t55xx view` - now viewing of T55XX dump files is possible (@iceman1001)
+- Fixed `lf indala cone` - now writing the right bits when using `--fc` and `--cn`
 - Changed readline hack logic for async dbg msg to be ready for readline 8.3 (@doegox)
 - Improved To avoid conflicts with ModemManager on Linux, is recommended to masking the service (@grugnoymeme)
 - Changed `data crypto` - now also handles AES-256 (@iceman1001)
@@ -21,7 +23,7 @@ This project uses the changelog in accordance with [keepchangelog](http://keepac
 - Changed `hf mfu sim` - now support UL-C simulation (@iceman1001)
 - Added `!` - run system commands from inside the client. Potentially dangerous if running client as SUDO, SU, ROOT (@iceman1001)
 - Implemented `hf felica scsvcode` - now dumps all service and area codes. (@zinongli)
-- Fixed `lf indala cone` - now writing the right bits when using `--fc` and `--cn`
+
 
 ## [Daddy Iceman.4.20469][2025-06-16]
 - Fixed edge case in fm11rf08s key recovery tools (@doegox)

client/src/cmdlft55xx.c

@@ -4694,6 +4694,74 @@ static int CmdT55xxSniff(const char *Cmd) {
     return PM3_SUCCESS;
 }
 
+static int CmdT55xxView(const char *Cmd) {
+
+    CLIParserContext *ctx;
+    CLIParserInit(&ctx, "lf t55xx view",
+                  "Print a T55xx dump file (bin/eml/json)\n",
+                  "lf t55xx view -f lf-t55xx-00000000-11111111-22222222-33333333-dump.bin"
+                 );
+    void *argtable[] = {
+        arg_param_begin,
+        arg_str1("f", "file", "<fn>", "Specify a filename for dump file"),
+        arg_lit0("v", "verbose", "verbose output"),
+        arg_param_end
+    };
+    CLIExecWithReturn(ctx, Cmd, argtable, false);
+    int fnlen = 0;
+    char filename[FILE_PATH_SIZE];
+    CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
+    // bool verbose = arg_get_lit(ctx, 2);
+    CLIParserFree(ctx);
+
+    if (fnlen == 0) {
+        PrintAndLogEx(ERR, "Must specify a filename");
+        return PM3_EINVARG;
+    }
+
+    // read dump file
+    uint32_t *dump = NULL;
+    size_t bytes_read = 0;
+    int res = pm3_load_dump(filename, (void **)&dump, &bytes_read, (T55x7_BLOCK_COUNT * 4));
+    if (res != PM3_SUCCESS) {
+        return res;
+    }
+
+    if (bytes_read != (T55x7_BLOCK_COUNT * 4)) {
+        free(dump);
+        PrintAndLogEx(FAILED, "wrong length of dump file. Expected 48 bytes, got %zu", bytes_read);
+        return PM3_EFILE;
+    }
+
+
+    PrintAndLogEx(INFO, "");
+    PrintAndLogEx(SUCCESS, "       " _CYAN_("Page 0"));
+    PrintAndLogEx(SUCCESS, "----+----------+-------");
+    PrintAndLogEx(SUCCESS, "blk | hex data | ascii");
+    PrintAndLogEx(SUCCESS, "----+----------+-------");
+
+    uint32_t *pd = dump;
+    uint8_t tmp[4] = {0};
+    for (uint8_t i = 0; i < 8; ++i) {
+        Uint4byteToMemLe(tmp, *pd);
+        PrintAndLogEx(SUCCESS, " %02d | %s | %s", i, sprint_hex_inrow(tmp, sizeof(tmp)), sprint_ascii(tmp, 4));
+        pd++;
+    }
+    PrintAndLogEx(INFO, "");
+    PrintAndLogEx(SUCCESS, "       " _CYAN_("Page 1"));
+    PrintAndLogEx(SUCCESS, "----+----------+-------");
+    PrintAndLogEx(SUCCESS, "blk | hex data | ascii");
+    PrintAndLogEx(SUCCESS, "----+----------+-------");
+    for (uint8_t i = 0; i < 4; i++) {
+        Uint4byteToMemLe(tmp, *pd);
+        PrintAndLogEx(SUCCESS, " %02d | %s | %s", i, sprint_hex_inrow(tmp, sizeof(tmp)), sprint_ascii(tmp, 4));
+        pd++;
+    }
+    PrintAndLogEx(NORMAL, "");
+    free(dump);
+    return PM3_SUCCESS;
+}
+
 static command_t CommandTable[] = {
     {"-----------",  CmdHelp,                 AlwaysAvailable, "---------------------------- " _CYAN_("notice") " -----------------------------"},
     {"",             CmdHelp,                 AlwaysAvailable, "Remember to run `" _YELLOW_("lf t55xx detect") "` first whenever a new card"},
@@ -4714,6 +4782,7 @@ static command_t CommandTable[] = {
     {"restore",      CmdT55xxRestore,         IfPm3Lf,         "Restore T55xx card Page 0 / Page 1 blocks"},
     {"trace",        CmdT55xxReadTrace,       AlwaysAvailable, "Show T55x7 traceability data (page 1/ blk 0-1)"},
     {"wakeup",       CmdT55xxWakeUp,          IfPm3Lf,         "Send AOR wakeup command"},
+    {"view",         CmdT55xxView,            AlwaysAvailable, "Display content from tag dump file"},
     {"write",        CmdT55xxWriteBlock,      IfPm3Lf,         "Write T55xx block data"},
     {"-----------",  CmdHelp,                 AlwaysAvailable, "--------------------- " _CYAN_("recovery") " ---------------------"},
     {"bruteforce",   CmdT55xxBruteForce,      IfPm3Lf,         "Simple bruteforce attack to find password"},

client/src/pm3line_vocabulary.h

@@ -796,6 +796,7 @@ const static vocabulary_t vocabulary[] = {
     { 0, "lf t55xx restore" },
     { 1, "lf t55xx trace" },
     { 0, "lf t55xx wakeup" },
+    { 1, "lf t55xx view" },
     { 0, "lf t55xx write" },
     { 0, "lf t55xx bruteforce" },
     { 0, "lf t55xx chk" },

doc/commands.json

@@ -2854,7 +2854,7 @@
         },
         "hf felica scsvcode": {
             "command": "hf felica scsvcode",
-            "description": "Feature not implemented yet. Feel free to contribute!",
+            "description": "Dump all existing Area Code and Service Code.",
             "notes": [
                 "hf felica scsvcode"
             ],
@@ -11648,7 +11648,7 @@
         },
         "lf t55xx help": {
             "command": "lf t55xx help",
-            "description": "----------- ---------------------------- notice ----------------------------- Remember to run `lf t55xx detect` first whenever a new card is placed on the Proxmark3 or the config block changed. help This help ----------- --------------------- operations --------------------- config Set/Get T55XX configuration (modulation, inverted, offset, rate) detect Try detecting the tag modulation from reading the configuration block info Show T55x7 configuration data (page 0/ blk 0) trace Show T55x7 traceability data (page 1/ blk 0-1) ----------- --------------------- recovery --------------------- sniff Attempt to recover T55xx commands from sample buffer --------------------------------------------------------------------------------------- lf t55xx clonehelp available offline: no Display a list of available commands for cloning specific techs on T5xx tags",
+            "description": "----------- ---------------------------- notice ----------------------------- Remember to run `lf t55xx detect` first whenever a new card is placed on the Proxmark3 or the config block changed. help This help ----------- --------------------- operations --------------------- config Set/Get T55XX configuration (modulation, inverted, offset, rate) detect Try detecting the tag modulation from reading the configuration block info Show T55x7 configuration data (page 0/ blk 0) trace Show T55x7 traceability data (page 1/ blk 0-1) view Display content from tag dump file ----------- --------------------- recovery --------------------- sniff Attempt to recover T55xx commands from sample buffer --------------------------------------------------------------------------------------- lf t55xx clonehelp available offline: no Display a list of available commands for cloning specific techs on T5xx tags",
             "notes": [
                 "lf t55xx clonehelp"
             ],
@@ -11843,6 +11843,20 @@
             ],
             "usage": "lf t55xx trace [-h1] [--r0] [--r1] [--r2] [--r3]"
         },
+        "lf t55xx view": {
+            "command": "lf t55xx view",
+            "description": "Print a T55xx dump file (bin/eml/json)",
+            "notes": [
+                "lf t55xx view -f lf-t55xx-00000000-11111111-22222222-33333333-dump.bin"
+            ],
+            "offline": true,
+            "options": [
+                "-h, --help This help",
+                "-f, --file <fn> Specify a filename for dump file",
+                "-v, --verbose verbose output"
+            ],
+            "usage": "lf t55xx view [-hv] -f <fn>"
+        },
         "lf t55xx wakeup": {
             "command": "lf t55xx wakeup",
             "description": "This commands sends the Answer-On-Request command and leaves the readerfield ON afterwards",
@@ -13439,8 +13453,8 @@
         }
     },
     "metadata": {
-        "commands_extracted": 772,
+        "commands_extracted": 773,
         "extracted_by": "PM3Help2JSON v1.00",
-        "extracted_on": "2025-07-25T20:28:03"
+        "extracted_on": "2025-07-28T13:42:15"
     }
 }

doc/commands.md

@@ -1344,6 +1344,7 @@ Check column "offline" for their availability.
 |`lf t55xx restore       `|N       |`Restore T55xx card Page 0 / Page 1 blocks`
 |`lf t55xx trace         `|Y       |`Show T55x7 traceability data (page 1/ blk 0-1)`
 |`lf t55xx wakeup        `|N       |`Send AOR wakeup command`
+|`lf t55xx view          `|Y       |`Display content from tag dump file`
 |`lf t55xx write         `|N       |`Write T55xx block data`
 |`lf t55xx bruteforce    `|N       |`Simple bruteforce attack to find password`
 |`lf t55xx chk           `|N       |`Check passwords`