* agent/call-scd.c (handle_pincache_put): Do not decrypt.
(handle_pincache_get): New.
(inq_needpin): Call it.
* scd/command.c (set_key_for_pincache): New.
(pincache_put): Restructure and set key.
(pincache_get): Ditto.
--
This change does away with encrypting and decrypting the cached PIN in
the agent. There is no need for this we can simply cache the
cryptogram and let scdaemon decrypt after retrieving it from the
agent. This way we do not need to share a key between gpg-agent and
scdaemon and further the cached content is invalid after the scdaemon
process has been replaced.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/agent.h (CACHE_MODE_DATA): New const.
* agent/cache.c (DEF_CACHE_TTL_DATA): new.
(housekeeping): Tweak for CACHE_MODE_DATA.
(cache_mode_equal): Ditto.
(agent_get_cache): Ditto.
(agent_put_cache): Implement CACHE_MODE_DATA.
* agent/command.c (MAXLEN_PUT_SECRET): New.
(parse_ttl): New.
(cmd_get_secret): New.
(cmd_put_secret): New.
(register_commands): Register new commands.
--
These commands allow to store secrets in memory for the lifetime of
the gpg-agent process.
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/cache.c (agent_put_cache): Add arg 'ctrl' and change all
callers to pass it.
(agent_get_cache): Ditto.
* agent/cache.c (struct cache_items_s): Add field 'restricted'.
(housekeeping): Adjust debug output.
(agent_flush_cache): Ditto.
(agent_put_cache): Ditto. Take RESTRICTED into account.
(agent_get_cache): Ditto.
--
If requests are coming from different sources they should not share the
same cache. This way we make sure that a Pinentry pops up for a
remote request to a key we have already used locally.
GnuPG-bug-id: 3858
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/cache.c (agent_cache_housekeeping): New func.
* agent/gpg-agent.c (handle_tick): Call it.
--
This change mitigates the risk of having cached items in a post mortem
dump.
GnuPG-bug-id: 3829
Signed-off-by: Werner Koch <wk@gnupg.org>
* agent/cache.c (agent_store_cache_hit): Make sure the update is
atomic.
--
Previously, the function freed the last key, and duplicated the new
key after doing that. There is a chance, however, that calling the
allocator surrenders control to a different thread, causing a double
free if a different thread also calls this function.
To make sure the update is atomic under the non-preemptive thread
model, we must make sure not to surrender control to a different
thread. Therefore, we avoid calling the allocator during the
update.
Signed-off-by: Justus Winter <justus@g10code.com>
CACHE_MODE_ANY is supposed to match any cache mode except
CACHE_MODE_IGNORE, but the code used '==' to compare cache modes.
* agent/cache.c (cache_mode_equal): New function.
(agent_set_cache): Use the new function to compare cache modes.
(agent_get_cache): Likewise.
* tests/openpgp/Makefile.am (TESTS): Add new test.
* tests/openpgp/issue2015.scm: New file.
GnuPG-bug-id: 2015
Signed-off-by: Justus Winter <justus@g10code.com>
* agent/cache.c (last_stored_cache_key): New.
(agent_get_cache): Allow NULL for KEY.
(agent_store_cache_hit): New.
* agent/findkey.c (unprotect): Call new function and try to use the
last stored key.
* g10/revoke.c (create_revocation): Add arg CACHE_NONCE and pass to
make_keysig_packet.
(gen_standard_revoke): Add arg CACHE_NONCE and pass to
create_revocation.
* g10/keygen.c (do_generate_keypair): Call gen_standard_revoke with
cache nonce.
--
This patch adds two features:
1. The key for the last passphrase successfully used for unprotecting
a key is stored away. On a cache miss the stored away passphrase is
tried as well. This helps for the common GPG use case of having a
signing and encryption (sub)key with the same passphrase. See the
code for more comments.
2. The now auto-generated revocation certificate does not anymore
popup a passphrase prompt. Thus for standard key generation the
passphrase needs to be given only once (well, two with the
confirmation).
The asymmetric quotes used by GNU in the past (`...') don't render
nicely on modern systems. We now use two \x27 characters ('...').
The proper solution would be to use the correct Unicode symmetric
quotes here. However this has the disadvantage that the system
requires Unicode support. We don't want that today. If Unicode is
available a generated po file can be used to output proper quotes. A
simple sed script like the one used for en@quote is sufficient to
change them.
The changes have been done by applying
sed -i "s/\`\([^'\`]*\)'/'\1'/g"
to most files and fixing obvious problems by hand. The msgid strings in
the po files were fixed with a similar command.
We better do this once and for all instead of cluttering all future
commits with diffs of trailing white spaces. In the majority of cases
blank or single lines are affected and thus this change won't disturb
a git blame too much. For future commits the pre-commit scripts
checks that this won't happen again.
char * vs. unsigned char * warnings. The GNU coding standards used to
say that these mismatches are okay and better than a bunch of casts.
Obviously this has changed now.
* Makefile.am (gpg_preset_passphrase_LDADD): Reorder libs so that
pwquery may use stuff from jnlib. Conditionally add -lwsock2
(gpg_protect_tool_LDADD): Ditto.
* preset-passphrase.c (main): Use default_homedir().
(main) [W32]: Initialize sockets.
* simple-pwquery.c (agent_open) [W32]: Implement for W32.
(readline) [W32]: Use recv instead of read.
(writen) [W32]: Use send instead of write.
(my_stpcpy): Define a stpcpy replacement so that this file
continues to be self-contained.
(agent_send_all_options) [W32]: Don't call ttyname.
* gnupg-badge-openpgp.eps, gnupg-badge-openpgp.jpg: New
* gnupg.texi: Add a logo.
* sysnotes.texi: New.
* gpgsm.c (main): Use default_homedir().
(main) [W32]: Default to disabled CRL checks.
* gpgconf-comp.c (get_config_pathname) [DOSISH]: Detect absolute
pathnames with a drive letter.
* call-scd.c: Seirialized all scdaeom access when using Pth.
* cache.c: Made the cache Pth-thread-safe.
(agent_unlock_cache_entry): New.
* findkey.c (unprotect): Unlock the returned cache value.
* command.c (cmd_get_passphrase): Ditto.
* gpg-agent.c (main): Register pth_read/write with Assuan.
* protect.c (agent_private_key_type): New.
* agent.h: Add PRIVATE_KEY_ enums.
* findkey.c (agent_key_from_file): Use it to decide whether we
have to unprotect a key.
(unprotect): Cache the passphrase.
* findkey.c (agent_key_from_file,agent_key_available): The key
files do now require a ".key" suffix to make a script's life
easier.
* genkey.c (store_key): Ditto.
* cache.c: New.
* command.c (cmd_get_passphrase): Use the cache.
(cmd_clear_passphrase): Ditto.
* gpg-agent.c: Removed unused cruft and implement the socket
based server.
(my_strusage): Take bug report address from configure.ac.
* command.c (start_command_handler): Add an argument to start as
regular server.
(start_command_handler): Enable Assuan logging.
