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iceman1001andClaude Opus 5.5
d2e077ded9
Seader keeps the SIO it sees on the air while the SAM reads a card, which is what lets it write an iCLASS SR downgrade. Do the same: - iCLASS: READ / READ4 answers from block 6 on are kept; the SIO is the lowest captured block holding a SEQUENCE whose DER length is covered by contiguous captured blocks (so a legacy block 7 that happens to start with 0x30 is not taken for it). - DESFire: the ReadData of file 0x0F Seader keys on, plus 91 AF continuations (Seader only keeps the first frame). A new request flag (bit 7 for CMD_HF_SAM_PICOPASS, bit 2 for CMD_HF_SAM_SEOS) asks for a sam_ext_reply_hdr_t ahead of the SAM response. It is only sent for a plain PACS request, so -d, --info and --break replies are unchanged. The capture lives in .bss and the reply is built in BigBuf to keep the RDV4 stack untouched. Also from Seader: a DESFire EV2 answers the Seos select with a 6F 22 85 20 FCI. Hide it from the SAM as 6A 82 and add Le to the DESFire select. sam_set_card_detected_seos() moves to sam_common.c as sam_set_card_detected_iso14a() so the MIFARE Classic path can share it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>