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* Avoid simple memory dumps via ptraceDaniel Kahn Gillmor2019-07-201-0/+9
| | | | | | | | | | | | | | | | | | This avoids needing to setgid gpg-agent. It probably doesn't defend against all possible attacks, but it defends against one specific (and easy) one. If there are other protections we should do them too. This will make it slightly harder to debug the agent because the normal user won't be able to attach gdb to it directly while it runs. The remaining options for debugging are: * launch the agent from gdb directly * connect gdb to a running agent as the superuser Upstream bug: https://dev.gnupg.org/T1211 Gbp-Pq: Topic block-ptrace-on-secret-daemons Gbp-Pq: Name Avoid-simple-memory-dumps-via-ptrace.patch
* spelling: Fix "synchronize"Daniel Kahn Gillmor2019-06-242-2/+2
| | | | Signed-off-by: Daniel Kahn Gillmor <[email protected]>
* scd: Add dummy option --application-priority.Werner Koch2019-04-021-1/+8
| | | | Signed-off-by: Werner Koch <[email protected]>
* g10: Fix symmetric cipher algo constant for ECDH.NIIBE Yutaka2019-03-271-2/+2
| | | | | | | | | | | * g10/ecdh.c (kek_params_table): Use CIPHER_ALGO_AES192 for ECC strength 384, according to RFC-6637. -- Reported-by: Trevor Bentley Signed-off-by: NIIBE Yutaka <[email protected]> (cherry picked from commit af3efd149f555d36a455cb2ea311ff81caf5124c)
* scd: Fix flushing of CA-FPR data objectsWerner Koch2019-03-071-20/+22
| | | | | | | | | | | | | | | | | * scd/app-openpgp.c (do_setattr): Add new table item to flush a different tag. -- For whatever reasons the OpenPGP card reads the 3 CA fingerprints from one object but sets them individually using 3 different tags. The cache flushing was not prepared for this and so a changed CA fingerprint showed only up after a card reset. This patch fixes it. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit c9f4c1f0de06672c6ae2b793d86cc001d131f9a6) Fixed conflict by removing the UIF-* entries from the table.
* scd: Don't let the "undefined" app cause a conflict error.Werner Koch2019-02-251-0/+3
| | | | | | | * scd/app.c (check_conflict): Ignore "undefined". Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit 5ecc7a02609dde65096ddb12e0ff8f6bce3b774a)
* scd: Distinguish cancel by user and protocol error.NIIBE Yutaka2019-02-193-3/+6
| | | | | | | | | | | | | | * scd/apdu.h (SW_HOST_CANCELLED): New. * scd/apdu.c (host_sw_string): Support SW_HOST_CANCELLED. (pcsc_error_to_sw): Return SW_HOST_CANCELLED for PCSC_E_CANCELLED. * scd/iso7816.c (map_sw): Return GPG_ERR_INV_RESPONSE for SW_HOST_ABORTED and GPG_ERR_CANCELED for SW_HOST_CANCELLED. -- Cherry-picked master commit of: 2396055c096884d521c26b76f26263a146207c24 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Make app_genkey and supporting ISO function more flexible.Werner Koch2019-02-116-19/+24
| | | | | | | | | | | | | | | | | | | | * scd/app.c (app_genkey): Add arg keytype. * scd/app-common.h (struct app_ctx_s): Fitto for the genkey member. * scd/command.c (cmd_genkey): Adjust for change. * scd/iso7816.c (do_generate_keypair): Replace arg read_only by new args p1 and p2. (iso7816_read_public_key): Adjust for this. (iso7816_generate_keypair): Add new args p1 and p2. * scd/app-openpgp.c (do_genkey): Adjust for changes. -- The OpenPGP card creates keys according to parameters read from a data object. Other cards we are about to implement require a direct specification of the requested keytype. This patch implements the required changes. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit 9a9cb0257aebb1480b999fdf9d90904083eb8e3c)
* scd: Fix parameter name of app_change_key.Werner Koch2019-02-112-7/+10
| | | | | | | | | | | | * scd/app-common.h (APP_GENKEY_FLAG_FORCE): New. * scd/app.c (app_change_pin): Rename arg reset_mode to flags and change from int to unsigned int. -- This is basically a documentation fix. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit c26af8ac263ea006ed32e110a09271e4bfbf1f37)
* scd: Allow standard keyref scheme for app-openpgp.Werner Koch2019-02-112-1/+15
| | | | | | | | | | | | | * scd/app-openpgp.c (do_change_pin): Allow prefixing the CHVNO with "OPENPGP." -- The generic keyref allows for better error detection in case a keyref is send to a wrong card. This has been taken from master commit 3231ecdafd71ac47b734469b07170756979ede72 which has additional changed for gpg-card-tool, which is only available there. Signed-off-by: Werner Koch <[email protected]>
* scd: Add option --clear to PASSWD.Werner Koch2019-01-226-6/+45
| | | | | | | | | | | | | | | | * scd/command.c (cmd_passwd): Add option --clear. (send_status_printf): New. * scd/app-common.h (APP_CHANGE_FLAG_CLEAR): New. * scd/app-nks.c (do_change_pin): Return an error if that option is used. * scd/app-openpgp.c (do_change_pin): Ditto. -- Card application may support this option to clear the PIN verification status of a specific PIN. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit 29929e65521279eabc98a67c766fe485057405a9)
* scd: One new and one improved 7816 function.Werner Koch2019-01-226-27/+90
| | | | | | | | | | | | | | | | | * scd/apdu.c (apdu_send_direct): New arg R_SW. * scd/command.c (cmd_apdu): Ditto. * scd/iso7816.c (iso7816_apdu_direct): New arg R_SW. (iso7816_general_authenticate): New. * scd/app-nks.c (get_chv_status, get_nks_version): Pass NULL for new arg. -- iso7816_general_authenticate will be used for the PIV card support. The new arg to iso7816_apdu_direct and apdu_send_direct allows to get the raw status word back without the need to handle an output buffer. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit 70bb5c7931598590b1acfae90bf4657f5911d2d3)
* scd: Fix for USB INTERRUPT transfer.NIIBE Yutaka2019-01-161-2/+1
| | | | | | | | | | | | | | | | | * scd/ccid-driver.c (intr_cb): When LIBUSB_TRANSFER_NO_DEVICE, just handle this event as failure. -- Cherry-picked from master commit: 5ab3bc422a5cc1a646c168b547f2b6538b3a4ffa It used to try another interrupt transfer request to make sure if it fails again. GnuPG-bug-id: 4308 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Support "acknowledge button" feature.NIIBE Yutaka2018-12-187-1/+97
| | | | | | | | | | | | | | | | | | * scd/apdu.c (set_prompt_cb): New member function. (set_prompt_cb_ccid_reader): New function. (open_ccid_reader): Initialize with set_prompt_cb_ccid_reader. (apdu_set_prompt_cb): New. * scd/app.c (lock_app, unlock_app): Add call to apdu_set_prompt_cb. * ccid-driver.c (ccid_set_prompt_cb): New. (bulk_in): Call ->prompt_cb when timer extension. * scd/command.c (popup_prompt): New. -- Cherry-picked master commit of: 7a5a4c4cac8709f7c413e94cd0b40f4123baa1e5 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Make "learn" report about KDF data object.NIIBE Yutaka2018-12-061-0/+2
| | | | | | | | | | * scd/app-openpgp.c (do_learn_status): Report KDF attr. * g10/card-util.c (current_card_status): Output KDF for with_colons. -- Backport of master commit: 05d163aebc04db109ec5e004eb04a4b3796f6421 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix signing authentication status.NIIBE Yutaka2018-10-151-1/+4
| | | | | | | | | | | | | | | | * scd/app-openpgp.c (do_sign): Clear DID_CHV1 after signing. -- Cherry-picked from master commit of: 78f542e1f4495195db2e668f9cd41657fb1afc77 We have a corner case: In "not forced" situation and authenticated, and it is changed to "forced", card implementaiton can actually accept signing, but GnuPG requires authentication, because it is "forced". GnuPG-bug-id: 4177 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Add support for Trustica Cryptoucan.Jiří Keresteš2018-07-293-3/+13
| | | | (cherry picked from commit 967d3649d24aba623133808e8d01675dff389fbb)
* scd: Writing KDF resets auth state.NIIBE Yutaka2018-04-031-1/+7
| | | | | | * scd/app-openpgp.c (do_setattr): Clear auth state. Signed-off-by: NIIBE Yutaka <[email protected]>
* g10,scd: Support single salt for KDF data object.NIIBE Yutaka2018-03-301-7/+22
| | | | | | | | | | | | | | * g10/card-util.c (gen_kdf_data): Support single salt. (kdf_setup): Can have argument for single salt. * scd/app-openpgp.c (pin2hash_if_kdf): Support single salt. -- Gnuk has "admin-less" mode. To support "admin-less" mode with KDF feature, salt should be same for user and admin. Thus, I introduce a valid use of single salt. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Support changing key attribute back to RSA.NIIBE Yutaka2018-03-301-6/+18
| | | | | | | | | | | | | | | | | * scd/app-openpgp.c (change_rsa_keyattr): Try usual RSA. -- In the OpenPGP card specification, there are multiple options to support RSA (having P and Q or not, etc.), and it is implementation dependent. Since GnuPG doesn't have knowledge which card implementation support which option and there is no way (yet) for card to express itself which key attributes are supported, we haven't supported key attribute change back to RSA. But, many card implementation uses P and Q, try this option. If other cases, factory-reset would be easier option. Signed-off-by: NIIBE Yutaka <[email protected]>
* agent,scd: Use pointer to represent HANDLE.NIIBE Yutaka2018-03-271-6/+10
| | | | | | | * agent/call-scd.c [HAVE_W32_SYSTEM] (start_scd): Format with %p. * scd/command.c [HAVE_W32_SYSTEM] (option_handler): Use void *. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Support KDF DO setup.NIIBE Yutaka2018-03-221-2/+3
| | | | | | | | | | | | * g10/call-agent.c (learn_status_cb): Parse the capability for KDF. * g10/card-util.c (gen_kdf_data, kdf_setup): New. (card_edit): New admin command cmdKDFSETUP to call kdf_setup. * scd/app-openpgp.c (do_getattr): Emit KDF capability. -- GnuPG-bug-id: 3823 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: signal mask should be set just after npth_init.NIIBE Yutaka2018-03-191-11/+17
| | | | | | | | | | | | | * scd/scdaemon.c (setup_signal_mask): New. (main): Call setup_signal_mask. (handle_connections): Remove signal mask setup. -- For new thread, signal mask is inherited by thread creation. Thus, it is best to setup signal mask just after npth_init. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix suspend/resume handling for CCID driver.NIIBE Yutaka2018-03-151-1/+2
| | | | | | | | | | | | | * scd/ccid-driver.c (intr_cb): Try submitting INTERRUPT urb to see if it's suspend/resume. -- Upon suspend/resume, LIBUSB_TRANSFER_NO_DEVICE is returned, since all URBs are cancelled. We need to see if it's real NODEV error or its by suspend/resume. We can distinguish by sending URB again. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: After fatal error, shutdown a reader.NIIBE Yutaka2018-03-131-0/+9
| | | | | | | | | | * scd/apdu.c (pcsc_send_apdu): Notify main loop after fatal errors. -- GnuPG-bug-id: 3825 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix for GNU/Linux suspend/resume.NIIBE Yutaka2018-03-131-4/+2
| | | | | | | | | | | | | | | * configure.ac (require_pipe_to_unblock_pselect): Default is "yes". * scd/scdaemon.c (scd_kick_the_loop): Minor clean up. -- Normally SIGCONT or SIGUSR2 works for unblocking pselect. But on my machine with GNU/Linux, when a machine is suspend/resume-ed, pselect keeps blocked, while signal itself is delivered. It's better to use pipe. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix typo in previous commit.NIIBE Yutaka2018-03-121-1/+1
| | | | Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: More fix with PC/SC for Windows.NIIBE Yutaka2018-03-081-18/+20
| | | | | | | | | | * scd/apdu.c (pcsc_get_status): Return status based on CURRENT_STATUS. Add debug log. -- GnuPG-bug-id: 3825 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix status check when using PC/SC.NIIBE Yutaka2018-03-082-3/+14
| | | | | | | | | | | | | | | | | | | * scd/apdu.c (struct reader_table_s): Add field of current_state. (new_reader_slot): Initialize current_state. (pcsc_get_status): Keep the status in READER_TABLE array. Return SW_HOST_NO_READER when PCSC_STATE_CHANGED. * scd/scdaemon.c (handle_connections): Silence a warning. -- To detect some change of card status, including suspend/resume possibly, SCardGetStatusChange should be used keeping the dwCurrentState field. This change could improve situation for suspend/resume with Yubikey on Windows. Even not, this is doing the Right Thing. Signed-off-by: NIIBE Yutaka <[email protected]>
* common: Use new function to print status strings.Werner Koch2018-02-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | * common/asshelp2.c (vprint_assuan_status_strings): New. (print_assuan_status_strings): New. * agent/command.c (agent_write_status): Replace by call to new function. * dirmngr/server.c (dirmngr_status): Ditto. * g13/server.c (g13_status): Ditto. * g13/sh-cmd.c (g13_status): Ditto. * sm/server.c (gpgsm_status2): Ditto. * scd/command.c (send_status_info): Bump up N. -- This fixes a potential overflow if LFs are passed to the status string functions. This is actually not the case and would be wrong because neither the truncating in libassuan or our escaping is not the Right Thing. In any case the functions need to be more robust and comply to the promised interface. Thus the code has been factored out to a helper function and N has been bumped up correctly and checked in all cases. For some uses this changes the behaviour in the error case (i.e. CR or LF passed): It will now always be C-escaped and not passed to libassuan which would truncate the line at the first LF. Reported-by: private_pers
* scd: Improve KDF-DO supportArnaud Fontaine2018-02-131-1/+2
| | | | | | | | | | * scd/app-openpgp.c (pin2hash_if_kdf): Check the content of KDF DO. -- Length check added by gniibe. Signed-off-by: Arnaud Fontaine <[email protected]>
* scd: Fix handling for Data Object with no data.NIIBE Yutaka2018-02-121-2/+6
| | | | | | | | | | | | | | * scd/app-openpgp.c (get_cached_data): Return NULL for Data Object with no data. -- When GET_DATA returns no data with success (90 00), this routine firstly returned buffer with length zero, and secondly (with cache) returned NULL, which is inconsistent. Now, it returns NULL for both cases. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Use pipe to kick the loop on NetBSD.NIIBE Yutaka2018-02-071-1/+38
| | | | | | | | | | | | | | * configure.ac (HAVE_PSELECT_NO_EINTR): New. * scd/scdaemon.c (scd_kick_the_loop): Write to pipe. (handle_connections): Use pipe. -- On NetBSD, signal to the same process cannot unblock pselect, with unknown reason. Use pipe instead, for such systems. GnuPG-bug-id: 3778 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Support KDF Data Object of OpenPGPcard V3.3.NIIBE Yutaka2018-01-221-25/+94
| | | | | | | | | | | | | * scd/app-openpgp.c (do_getattr, do_setattr): Add KDF support. (pin2hash_if_kdf): New. (verify_a_chv): Add PINLEN arg. Use pin2hash_if_kdf. (verify_chv2, do_sign): Follow the change of verify_a_chv. (verify_chv3, do_change_pin): Use pin2hash_if_kdf. -- GnuPG-bug-id: 3152 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix for inactive card at start by internal CCID driver.NIIBE Yutaka2017-12-271-2/+15
| | | | | | | | | | | | | | * scd/ccid-driver.c (do_close_reader): Set NULL on close. (bulk_in): Move DEBUGOUT and check by EP_INTR. (ccid_get_atr): Clear powered_off flag after initial status check. -- Many card readers automatically turn on inserted card, but some defaults to turning off at start. GnuPG-bug-id: 3508 Signed-off-by: NIIBE Yutaka <[email protected]>
* Change backlog from 5 to 64 and provide option --listen-backlog.Werner Koch2017-12-121-3/+13
| | | | | | | | | | | | | | * agent/gpg-agent.c (oListenBacklog): New const. (opts): New option --listen-backlog. (listen_backlog): New var. (main): Parse new options. (create_server_socket): Use var instead of 5. * dirmngr/dirmngr.c: Likewise. * scd/scdaemon.c: Likewise. -- GnuPG-bug-id: 3473 Signed-off-by: Werner Koch <[email protected]>
* scd: Enable card removal check after select_application.NIIBE Yutaka2017-11-214-12/+18
| | | | | | | | | | | | | | | | | | | | | | * scd/apdu.c (open_ccid_reader): Fix error handling of ccid_get_atr. * scd/app.c (select_application): Always kick the loop if new APP. * scd/ccid-driver.c (ccid_open_usb_reader): Don't setup at open. (ccid_slot_status): Setup interrupt transfer when !ON_WIRE. -- We can use the interrupt transfer to be notified about card status change. In this case, we don't need to issue PC_to_RDR_GetSlotStatus command. This change improve the setup the notification; it should be done after registration of APP. When the setup is done just after opening the USB connection (before issuing PC_to_RDR_IccPowerOn), a reader might notifies about no card availability (because of not yet powered on), even though the card is ready to be powered on. GnuPG-bug-id: 3508 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix for large ECC keys.NIIBE Yutaka2017-09-111-8/+32
| | | | | | | | | * scd/app-openpgp.c (do_decipher): Support larger length. -- Reported-by: Achim Pietig <[email protected]> Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Convey the correct length for LeWerner Koch2017-08-271-2/+2
| | | | | | | | | | | | | | | | | | | | | * scd/app-openpgp.c (determine_rsa_response): Round bits up. -- Co-authored-by: Arnaud Fontaine <[email protected]> Arnaud wrote: Actually, when the incorrect expected response length (i.e. Le field) is transmitted to the card, the card's answer is missing a byte (i.e. ... 6101) so an additional command has to be sent to the card to retrieve the last byte. Using the correct length avoids to send the additional command to retrieve the missing byte, when the computed length is wrong. Note that an value of 65537 for E is pretty standard and thus we can avoid the 6101 return code inmost cases. Signed-off-by: Werner Koch <[email protected]>
* w32: Also change the directory on daemon startup.Werner Koch2017-07-251-2/+2
| | | | | | | | | | | | | | | * agent/gpg-agent.c (main): Always to the chdir. * dirmngr/dirmngr.c (main): Ditto. * scd/scdaemon.c (main): Ditto. -- Note that only dirmngr did not call the chdir with --no-detach. thus we kept it this way. Tested gpg-agent by checking the properties shown by procexp. Gnupg-bug-id: 2670 Signed-off-by: Werner Koch <[email protected]>
* common: New functions gnupg_daemon_rootdir and gnupg_chdir.Werner Koch2017-07-251-2/+3
| | | | | | | | | | | * common/sysutils.c (gnupg_chdir): New. * common/homedir.c (gnupg_daemon_rootdir): New. * agent/gpg-agent.c (main): Use these functions instead chdir("/"). * dirmngr/dirmngr.c (main): Ditto. * scd/scdaemon.c (main): Ditto. -- Signed-off-by: Werner Koch <[email protected]>
* Revert "w32: Change directory on daemon startup."Werner Koch2017-07-251-10/+3
| | | | | | -- This reverts commit 78ebc62604d77600b9865950610717d28c6027a2. Gnupg-bug-id: 2670
* w32: Change directory on daemon startup.Marcus Brinkmann2017-07-241-3/+10
| | | | | | | | | | | | * agent/gpg-agent.c [HAVE_W32_SYSTEM]: Include <direct.h>. (main) [HAVE_W32_SYSTEM]: Change working directory to \. * dirmngr/dirmngr.c [HAVE_W32_SYSTEM]: Include <direct.h>. (main) [HAVE_W32_SYSTEM]: Change working directory to \. * scd/scdaemon.c [HAVE_W32_SYSTEM]: Include <direct.h>. (main) [HAVE_W32_SYSTEM]: Change working directory to \. Signed-off-by: Marcus Brinkmann <[email protected]> GnuPG-bug-id: 2670
* scd: Use unsigned int for fields.NIIBE Yutaka2017-07-241-5/+5
| | | | | | * scd/app-openpgp.c (data_objects): Use unsigned ints. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix SEGV in CCID driver.NIIBE Yutaka2017-07-211-4/+7
| | | | | | | * scd/ccid-driver.c (intr_cb): Only kick the loop for removal. (bulk_in): Don't set POWERED_OFF when interrupt transfer is enabled. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Add debug message for v3 card.NIIBE Yutaka2017-07-211-8/+17
| | | | | | * scd/app-openpgp.c (show_caps): Output more messages. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Support longer data length for special DOs for v3 card.NIIBE Yutaka2017-07-201-16/+45
| | | | | | | | | | | | | * scd/app-openpgp.c (data_objects): Special DOs like "Login Data", "URL", "Private DO N" can be longer size >= 256. (struct app_local_s): Define bits for v3 card. (get_cached_data): Use extcap.max_special_do for special DOs. (app_select_openpgp): Detect if extcap_v3, kdf_do, and other bits. -- GnuPG-bug-id: 3262 Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Fix error code on failure at usb_init.NIIBE Yutaka2017-05-311-1/+1
| | | | | | * scd/ccid-driver.c (ccid_dev_scan): Return GPG_ERR_ENODEV. Signed-off-by: NIIBE Yutaka <[email protected]>
* scd: Handle a failure of libusb_init.NIIBE Yutaka2017-05-311-4/+15
| | | | | | | | | | * scd/ccid-driver.c (ccid_get_reader_list, ccid_dev_scan): Handle failure. -- Reported-by: Yuriy M. Kaminskiy <[email protected]> Signed-off-by: NIIBE Yutaka <[email protected]>
* Spelling fixes in docs and comments.NIIBE Yutaka2017-04-286-9/+9
| | | | | | | | | | -- In addition, fix trailing spaces in tests/inittests. GnuPG-bug-id: 3121 Reported-by: ka7 (klemens) Signed-off-by: NIIBE Yutaka <[email protected]>
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