diff options
| author | Kevin Redon <kevredon@mail.tsaitgaist.info> | 2012-09-11 11:59:21 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2014-10-26 19:09:23 +0100 |
| commit | dede831fcd5ccc67ad4d0e05aaa9688c119a5b93 (patch) | |
| tree | 87be93e1149af8c66bb7fdb59f493749dfcff78a /include | |
| parent | 1707306da59a53c8ce72952fc5e41b999e36b73c (diff) | |
sim: add comment/explaination for structure osim_msgb_cb
Diffstat (limited to 'include')
| -rw-r--r-- | include/osmocom/sim/sim.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/include/osmocom/sim/sim.h b/include/osmocom/sim/sim.h index 12f0074d..e415843e 100644 --- a/include/osmocom/sim/sim.h +++ b/include/osmocom/sim/sim.h @@ -28,11 +28,12 @@ struct osim_apdu_cmd_hdr { #define msgb_apdu_dr(__x) +/* command body, as specified in ISO/IEC 7816-3:2006(E) ยง12.1 */ struct osim_msgb_cb { - enum osim_apdu_case apduc; - uint16_t lc; - uint16_t le; - uint16_t sw; + enum osim_apdu_case apduc; /* command-response pairs case, defining the encoding of Lc and Le */ + uint16_t lc; /* number of bytes in the command data field Nc, which will encoded in 0, 1 or 3 bytes into Lc */ + uint16_t le; /* maximum number of bytes expected in the response data field, which will encoded in 0, 1, 2 or 3 bytes into Le */ + uint16_t sw; /* status word, composed of SW1 and SW2 bytes */ }; #define OSIM_MSGB_CB(__msgb) ((struct osim_msgb_cb *)&((__msgb)->cb[0])) /*! \brief status word from msgb->cb */ |