gpg,tools: Add handling of supported algorithms by a card.

* g10/call-agent.h (struct agent_card_info_s): Add supported_keyalgo.
* g10/call-agent.c (learn_status_cb): Parse KEY-ATTR-INFO.
(agent_release_card_info): Release supported_keyalgo.
* tools/gpg-card.h (struct card_info_s): Add supported_keyalgo.
* tools/card-call-scd.c (learn_status_cb): Parse KEY-ATTR-INFO.
(release_card_info): Release supported_keyalgo.

Signed-off-by: NIIBE Yutaka <[email protected]>

1 files changed, 25 insertions, 0 deletions

diff --git a/tools/card-call-scd.c b/tools/card-call-scd.c
index 8800c5b52..0b529f06a 100644
--- a/tools/card-call-scd.c
+++ b/tools/card-call-scd.c
@@ -161,6 +161,11 @@ release_card_info (card_info_t info)
       info->kinfo = kinfo;
     }
   info->chvusage[0] = info->chvusage[1] = 0;
+  for (i=0; i < DIM(info->supported_keyalgo); i++)
+    {
+      free_strlist (info->supported_keyalgo[i]);
+      info->supported_keyalgo[i] = NULL;
+    }
 }
 
 
@@ -1042,6 +1047,26 @@ learn_status_cb (void *opaque, const char *line)
           xfree (parm->dispserialno);
           parm->dispserialno = unescape_status_string (line);
         }
+      else if (!memcmp (keyword, "KEY-ATTR-INFO", keywordlen))
+        {
+          if (!strncmp (line, "OPENPGP.", 8))
+            {
+              int no;
+
+              line += 8;
+              no = atoi (line);
+              if (no >= 1 && no <= 3)
+                {
+                  no--;
+                  line++;
+                  while (spacep (line))
+                    line++;
+                  append_to_strlist (&parm->supported_keyalgo[no],
+                                     xstrdup (line));
+                }
+            }
+          /* Skip when it's not "OPENPGP.[123]".  */
+        }
       break;
 
     default: