fixing hf snoop:

[proxmark3-svn] / common / protocols.c

diff --git a/common/protocols.c b/common/protocols.c
index 56a6924f78cafa9aa1c9d31ba9a70f96754afdb9..0a523da3ab993021fc13318903c3114a9326c16c 100644 (file)
--- a/common/protocols.c
+++ b/common/protocols.c
@@ -11,13 +11,13 @@
 
 
 typedef struct {
-       uint8_t app_limit;
-       uint8_t otp[2];
-       uint8_t block_writelock;
-       uint8_t chip_config;
-       uint8_t mem_config;
-       uint8_t eas;
-       uint8_t fuses;
+       uint8_t app_limit;      //[8]
+       uint8_t otp[2];         //[9-10]
+       uint8_t block_writelock;//[11]
+       uint8_t chip_config;    //[12]
+       uint8_t mem_config;     //[13]
+       uint8_t eas;            //[14]
+       uint8_t fuses;          //[15]
 }picopass_conf_block;
 
 
@@ -74,25 +74,49 @@ void fuse_config(const picopass_hdr *hdr)
        if( isset( fuses, FUSE_RA)) prnt("      RA: Read access enabled");
        else prnt("     RA: Read access not enabled");
 }
+
+void getMemConfig(uint8_t mem_cfg, uint8_t chip_cfg, uint8_t *max_blk, uint8_t *app_areas, uint8_t *kb) {
+       // mem-bit 5, mem-bit 7, chip-bit 4: defines chip type
+       if(isset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
+               *kb = 2;
+               *app_areas = 2;
+               *max_blk = 31;
+       } else if(isset(chip_cfg, 0x10) && isset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
+               *kb = 16;
+               *app_areas = 2;
+               *max_blk = 255; //16kb
+       } else if(notset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
+               *kb = 16;
+               *app_areas = 16;
+               *max_blk = 255; //16kb
+       } else if(isset(chip_cfg, 0x10) && isset(mem_cfg, 0x80) && isset(mem_cfg, 0x20)) {
+               *kb = 32;
+               *app_areas = 3;
+               *max_blk = 255; //16kb
+       } else if(notset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && isset(mem_cfg, 0x20)) {
+               *kb = 32;
+               *app_areas = 17;
+               *max_blk = 255; //16kb
+       } else {
+               *kb = 32;
+               *app_areas = 2;
+               *max_blk = 255;
+       }
+}
+
 void mem_app_config(const picopass_hdr *hdr)
 {
        uint8_t mem = hdr->conf.mem_config;
+       uint8_t chip = hdr->conf.chip_config;
        uint8_t applimit = hdr->conf.app_limit;
        if (applimit < 6) applimit = 26;
-       uint8_t kb=2;
-       uint8_t maxBlk = 32;
-       if( isset(mem, 0x10) && notset(mem, 0x80)){
-               // 2kb default
-       } else if( isset(mem, 0x80) && notset(mem, 0x10)){
-               kb = 16;
-               maxBlk = 255; //16kb
-       } else {
-               kb = 32;
-               maxBlk = 255;
-       }
-       prnt("  Mem: %u KBits ( %u * 8 bytes) [%02X]", kb, maxBlk, mem);
+       uint8_t kb = 2;
+       uint8_t app_areas = 2;
+       uint8_t max_blk = 31;
+       getMemConfig(mem, chip, &max_blk, &app_areas, &kb);
+       prnt("  Mem: %u KBits/%u App Areas (%u * 8 bytes) [%02X]", kb, app_areas, max_blk, mem);
        prnt("  AA1: blocks 06-%02X", applimit);
-       prnt("  AA2: blocks %02X-%02X", (applimit+1), (hdr->conf.mem_config));
+       prnt("  AA2: blocks %02X-%02X", applimit+1, max_blk);
 }
 void print_picopass_info(const picopass_hdr *hdr)
 {