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pageant_get_keylist: use the new extended list if available.

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Now the returned list of keys will have a flags word for each key, if
the agent was willing to provide one.
This commit is contained in:
Simon Tatham 2020-12-15 13:40:51 +00:00
parent 39ec2837c8
commit 91c9caa3fe
1 changed files with 54 additions and 12 deletions
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66
pageant.c
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@ -1805,6 +1805,7 @@ void pageant_forget_passphrases(void)
typedef struct KeyListEntry {
ptrlen blob, comment;
uint32_t flags;
} KeyListEntry;
typedef struct KeyList {
strbuf *raw_data;
@ -1820,23 +1821,54 @@ static void keylist_free(KeyList *kl)
sfree(kl);
}
static PageantClientOp *pageant_request_keylist_1(void)
{
PageantClientOp *pco = pageant_client_op_new();
put_byte(pco, SSH1_AGENTC_REQUEST_RSA_IDENTITIES);
if (pageant_client_op_query(pco) == SSH1_AGENT_RSA_IDENTITIES_ANSWER)
return pco;
pageant_client_op_free(pco);
return NULL;
}
static PageantClientOp *pageant_request_keylist_2(void)
{
PageantClientOp *pco = pageant_client_op_new();
put_byte(pco, SSH2_AGENTC_REQUEST_IDENTITIES);
if (pageant_client_op_query(pco) == SSH2_AGENT_IDENTITIES_ANSWER)
return pco;
pageant_client_op_free(pco);
return NULL;
}
static PageantClientOp *pageant_request_keylist_extended(void)
{
PageantClientOp *pco = pageant_client_op_new();
put_byte(pco, SSH2_AGENTC_EXTENSION);
put_stringpl(pco, extension_names[EXT_LIST_EXTENDED]);
if (pageant_client_op_query(pco) == SSH_AGENT_SUCCESS)
return pco;
pageant_client_op_free(pco);
return NULL;
}
static KeyList *pageant_get_keylist(unsigned ssh_version)
{
static const unsigned char requests[] = {
0, SSH1_AGENTC_REQUEST_RSA_IDENTITIES, SSH2_AGENTC_REQUEST_IDENTITIES
}, responses[] = {
0, SSH1_AGENT_RSA_IDENTITIES_ANSWER, SSH2_AGENT_IDENTITIES_ANSWER
};
PageantClientOp *pco;
bool list_is_extended = false;
PageantClientOp *pco = pageant_client_op_new();
put_byte(pco, requests[ssh_version]);
unsigned reply = pageant_client_op_query(pco);
if (reply != responses[ssh_version]) {
pageant_client_op_free(pco);
return NULL;
if (ssh_version == 1) {
pco = pageant_request_keylist_1();
} else {
if ((pco = pageant_request_keylist_extended()) != NULL)
list_is_extended = true;
else
pco = pageant_request_keylist_2();
}
if (!pco)
return NULL;
KeyList *kl = snew(KeyList);
kl->nkeys = get_uint32(pco);
kl->keys = snewn(kl->nkeys, struct KeyListEntry);
@ -1849,6 +1881,16 @@ static KeyList *pageant_get_keylist(unsigned ssh_version)
kl->keys[i].blob = get_string(pco);
}
kl->keys[i].comment = get_string(pco);
if (list_is_extended) {
ptrlen key_ext_info = get_string(pco);
BinarySource src[1];
BinarySource_BARE_INIT_PL(src, key_ext_info);
kl->keys[i].flags = get_uint32(src);
} else {
kl->keys[i].flags = 0;
}
}
kl->broken = get_err(pco);