From ba58b21408d34938fd0c1b8eecf10bfa9de4366a Mon Sep 17 00:00:00 2001 From: Marcus Brinkmann Date: Sun, 3 Dec 2006 02:05:23 +0000 Subject: [PATCH] 2006-12-03 Marcus Brinkmann * engine-gpgsm.c (struct engine_gpgsm): Move members input_fd_server, output_fd_server, message_fd_server to ... (iocb_data): ... here (as server_fd). (close_notify_handler): Reset tags as well. (gpgsm_new): Implement support for descriptor passing. (fd_type_t): New type. (gpgsm_clear_fd): New function. Use it instead of _gpgsm_io_close for unused communication channels. (gpgsm_set_fd): Rewritten to support descriptor passing. All relevant callers adjusted as well (previously of _gpgme_io_close). --- gpgme/ChangeLog | 14 +++ gpgme/engine-gpgsm.c | 259 ++++++++++++++++++++++++++++++------------- 2 files changed, 196 insertions(+), 77 deletions(-) diff --git a/gpgme/ChangeLog b/gpgme/ChangeLog index 9343bd1..9a460ea 100644 --- a/gpgme/ChangeLog +++ b/gpgme/ChangeLog @@ -1,3 +1,17 @@ +2006-12-03 Marcus Brinkmann + + * engine-gpgsm.c (struct engine_gpgsm): Move members + input_fd_server, output_fd_server, message_fd_server to ... + (iocb_data): ... here (as server_fd). + (close_notify_handler): Reset tags as well. + (gpgsm_new): Implement support for descriptor + passing. + (fd_type_t): New type. + (gpgsm_clear_fd): New function. Use it instead of _gpgsm_io_close + for unused communication channels. + (gpgsm_set_fd): Rewritten to support descriptor passing. All + relevant callers adjusted as well (previously of _gpgme_io_close). + 2006-12-02 Marcus Brinkmann * version.c: Include "assuan.h". diff --git a/gpgme/engine-gpgsm.c b/gpgme/engine-gpgsm.c index 6a5af50..73e6ef8 100644 --- a/gpgme/engine-gpgsm.c +++ b/gpgme/engine-gpgsm.c @@ -51,6 +51,7 @@ typedef struct { int fd; /* FD we talk about. */ + int server_fd; /* Server FD for this connection. */ int dir; /* Inbound/Outbound, maybe given implicit? */ void *data; /* Handler-specific data. */ void *tag; /* ID from the user for gpgme_remove_io_callback. */ @@ -65,13 +66,10 @@ struct engine_gpgsm /* Input, output etc are from the servers perspective. */ iocb_data_t input_cb; - int input_fd_server; iocb_data_t output_cb; - int output_fd_server; iocb_data_t message_cb; - int message_fd_server; struct { @@ -124,24 +122,28 @@ close_notify_handler (int fd, void *opaque) if (gpgsm->status_cb.tag) (*gpgsm->io_cbs.remove) (gpgsm->status_cb.tag); gpgsm->status_cb.fd = -1; + gpgsm->status_cb.tag = NULL; } else if (gpgsm->input_cb.fd == fd) { if (gpgsm->input_cb.tag) (*gpgsm->io_cbs.remove) (gpgsm->input_cb.tag); gpgsm->input_cb.fd = -1; + gpgsm->input_cb.tag = NULL; } else if (gpgsm->output_cb.fd == fd) { if (gpgsm->output_cb.tag) (*gpgsm->io_cbs.remove) (gpgsm->output_cb.tag); gpgsm->output_cb.fd = -1; + gpgsm->output_cb.tag = NULL; } else if (gpgsm->message_cb.fd == fd) { if (gpgsm->message_cb.tag) (*gpgsm->io_cbs.remove) (gpgsm->message_cb.tag); gpgsm->message_cb.fd = -1; + gpgsm->message_cb.tag = NULL; } } @@ -322,8 +324,10 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir, engine_gpgsm_t gpgsm; const char *argv[5]; int argc; +#if !USE_DESCRIPTOR_PASSING int fds[2]; int child_fds[4]; +#endif char *dft_display = NULL; char dft_ttyname[64]; char *dft_ttytype = NULL; @@ -339,14 +343,17 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir, gpgsm->status_cb.tag = 0; gpgsm->input_cb.fd = -1; + gpgsm->input_cb.dir = 0; gpgsm->input_cb.tag = 0; - gpgsm->input_fd_server = -1; + gpgsm->input_cb.server_fd = -1; gpgsm->output_cb.fd = -1; + gpgsm->output_cb.dir = 1; gpgsm->output_cb.tag = 0; - gpgsm->output_fd_server = -1; + gpgsm->output_cb.server_fd = -1; gpgsm->message_cb.fd = -1; + gpgsm->message_cb.dir = 0; gpgsm->message_cb.tag = 0; - gpgsm->message_fd_server = -1; + gpgsm->message_cb.server_fd = -1; gpgsm->status.fnc = 0; gpgsm->colon.fnc = 0; @@ -361,14 +368,14 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir, gpgsm->io_cbs.event = NULL; gpgsm->io_cbs.event_priv = NULL; +#if !USE_DESCRIPTOR_PASSING if (_gpgme_io_pipe (fds, 0) < 0) { err = gpg_error_from_errno (errno); goto leave; } gpgsm->input_cb.fd = fds[1]; - gpgsm->input_cb.dir = 0; - gpgsm->input_fd_server = fds[0]; + gpgsm->input_cb.server_fd = fds[0]; if (_gpgme_io_pipe (fds, 1) < 0) { @@ -376,8 +383,7 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir, goto leave; } gpgsm->output_cb.fd = fds[0]; - gpgsm->output_cb.dir = 1; - gpgsm->output_fd_server = fds[1]; + gpgsm->output_cb.server_fd = fds[1]; if (_gpgme_io_pipe (fds, 0) < 0) { @@ -385,13 +391,13 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir, goto leave; } gpgsm->message_cb.fd = fds[1]; - gpgsm->message_cb.dir = 0; - gpgsm->message_fd_server = fds[0]; + gpgsm->message_cb.server_fd = fds[0]; - child_fds[0] = gpgsm->input_fd_server; - child_fds[1] = gpgsm->output_fd_server; - child_fds[2] = gpgsm->message_fd_server; + child_fds[0] = gpgsm->input_cb.server_fd; + child_fds[1] = gpgsm->output_cb.server_fd; + child_fds[2] = gpgsm->message_cb.server_fd; child_fds[3] = -1; +#endif argc = 0; argv[argc++] = "gpgsm"; @@ -403,9 +409,15 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir, argv[argc++] = "--server"; argv[argc++] = NULL; - err = assuan_pipe_connect (&gpgsm->assuan_ctx, - file_name ? file_name : _gpgme_get_gpgsm_path (), - argv, child_fds); +#if USE_DESCRIPTOR_PASSING + err = assuan_pipe_connect_ext + (&gpgsm->assuan_ctx, file_name ? file_name : _gpgme_get_gpgsm_path (), + argv, NULL, NULL, NULL, 1); +#else + err = assuan_pipe_connect + (&gpgsm->assuan_ctx, file_name ? file_name : _gpgme_get_gpgsm_path (), + argv, child_fds); +#endif if (err) goto leave; @@ -538,9 +550,16 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir, if (!err && (_gpgme_io_set_close_notify (gpgsm->status_cb.fd, + close_notify_handler, gpgsm))) + { + err = gpg_error (GPG_ERR_GENERAL); + goto leave; + } + +#if !USE_DESCRIPTOR_PASSING + if (!err + && (_gpgme_io_set_close_notify (gpgsm->input_cb.fd, close_notify_handler, gpgsm) - || _gpgme_io_set_close_notify (gpgsm->input_cb.fd, - close_notify_handler, gpgsm) || _gpgme_io_set_close_notify (gpgsm->output_cb.fd, close_notify_handler, gpgsm) || _gpgme_io_set_close_notify (gpgsm->message_cb.fd, @@ -549,16 +568,19 @@ gpgsm_new (void **engine, const char *file_name, const char *home_dir, err = gpg_error (GPG_ERR_GENERAL); goto leave; } - +#endif + leave: /* Close the server ends of the pipes. Our ends are closed in gpgsm_release(). */ - if (gpgsm->input_fd_server != -1) - _gpgme_io_close (gpgsm->input_fd_server); - if (gpgsm->output_fd_server != -1) - _gpgme_io_close (gpgsm->output_fd_server); - if (gpgsm->message_fd_server != -1) - _gpgme_io_close (gpgsm->message_fd_server); +#if !USE_DESCRIPTOR_PASSING + if (gpgsm->input_cb.server_fd != -1) + _gpgme_io_close (gpgsm->input_cb.server_fd); + if (gpgsm->output_cb.server_fd != -1) + _gpgme_io_close (gpgsm->output_cb.server_fd); + if (gpgsm->message_cb.server_fd != -1) + _gpgme_io_close (gpgsm->message_cb.server_fd); +#endif if (err) gpgsm_release (gpgsm); @@ -630,18 +652,114 @@ gpgsm_assuan_simple_command (assuan_context_t ctx, char *cmd, } +typedef enum { INPUT_FD, OUTPUT_FD, MESSAGE_FD } fd_type_t; + +static void +gpgsm_clear_fd (engine_gpgsm_t gpgsm, fd_type_t fd_type) +{ +#if !USE_DESCRIPTOR_PASSING + switch (fd_type) + { + case INPUT_FD: + _gpgme_io_close (gpgsm->input_cb.fd); + break; + case OUTPUT_FD: + _gpgme_io_close (gpgsm->output_cb.fd); + break; + case MESSAGE_FD: + _gpgme_io_close (gpgsm->message_cb.fd); + break; + } +#endif +} + #define COMMANDLINELEN 40 static gpgme_error_t -gpgsm_set_fd (assuan_context_t ctx, const char *which, int fd, const char *opt) +gpgsm_set_fd (engine_gpgsm_t gpgsm, fd_type_t fd_type, const char *opt) { + gpg_error_t err = 0; char line[COMMANDLINELEN]; + char *which; + iocb_data_t *iocb_data; + int dir; + int fd; + + switch (fd_type) + { + case INPUT_FD: + which = "INPUT"; + iocb_data = &gpgsm->input_cb; + break; + + case OUTPUT_FD: + which = "OUTPUT"; + iocb_data = &gpgsm->output_cb; + break; + + case MESSAGE_FD: + which = "MESSAGE"; + iocb_data = &gpgsm->message_cb; + break; + + default: + return gpg_error (GPG_ERR_INV_VALUE); + } + + dir = iocb_data->dir; + +#if USE_DESCRIPTOR_PASSING + { + int fds[2]; + + if (_gpgme_io_pipe (fds, 0) < 0) + return gpg_error_from_errno (errno); + + iocb_data->fd = dir ? fds[0] : fds[1]; + iocb_data->server_fd = dir ? fds[1] : fds[0]; + + if (_gpgme_io_set_close_notify (iocb_data->fd, + close_notify_handler, gpgsm)) + { + err = gpg_error (GPG_ERR_GENERAL); + goto leave_set_fd; + } + } +#endif + + fd = iocb_data->server_fd; + +#if USE_DESCRIPTOR_PASSING + err = assuan_sendfd (gpgsm->assuan_ctx, fd); + if (err) + goto leave_set_fd; + + _gpgme_io_close (fd); + if (opt) + snprintf (line, COMMANDLINELEN, "%s FD %s", which, opt); + else + snprintf (line, COMMANDLINELEN, "%s FD", which); +#else if (opt) snprintf (line, COMMANDLINELEN, "%s FD=%i %s", which, fd, opt); else snprintf (line, COMMANDLINELEN, "%s FD=%i", which, fd); +#endif + + err = gpgsm_assuan_simple_command (gpgsm->assuan_ctx, line, NULL, NULL); - return gpgsm_assuan_simple_command (ctx, line, NULL, NULL); +#if USE_DESCRIPTOR_PASSING + leave_set_fd: + if (err) + { + _gpgme_io_close (iocb_data->fd); + _gpgme_io_close (iocb_data->server_fd); + iocb_data->fd = -1; + iocb_data->server_fd = -1; + } +#endif + + return err; } @@ -894,15 +1012,14 @@ gpgsm_decrypt (void *engine, gpgme_data_t ciph, gpgme_data_t plain) return gpg_error (GPG_ERR_INV_VALUE); gpgsm->input_cb.data = ciph; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "INPUT", gpgsm->input_fd_server, - map_input_enc (gpgsm->input_cb.data)); + err = gpgsm_set_fd (gpgsm, INPUT_FD, map_input_enc (gpgsm->input_cb.data)); if (err) return gpg_error (GPG_ERR_GENERAL); /* FIXME */ gpgsm->output_cb.data = plain; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "OUTPUT", gpgsm->output_fd_server, 0); + err = gpgsm_set_fd (gpgsm, OUTPUT_FD, 0); if (err) return gpg_error (GPG_ERR_GENERAL); /* FIXME */ - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (engine, "DECRYPT"); return err; @@ -965,9 +1082,9 @@ gpgsm_delete (void *engine, gpgme_key_t key, int allow_secret) } *linep = '\0'; - _gpgme_io_close (gpgsm->output_cb.fd); - _gpgme_io_close (gpgsm->input_cb.fd); - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, OUTPUT_FD); + gpgsm_clear_fd (gpgsm, INPUT_FD); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (gpgsm, line); free (line); @@ -1049,16 +1166,14 @@ gpgsm_encrypt (void *engine, gpgme_key_t recp[], gpgme_encrypt_flags_t flags, return gpg_error (GPG_ERR_NOT_IMPLEMENTED); gpgsm->input_cb.data = plain; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "INPUT", gpgsm->input_fd_server, - map_input_enc (gpgsm->input_cb.data)); + err = gpgsm_set_fd (gpgsm, INPUT_FD, map_input_enc (gpgsm->input_cb.data)); if (err) return err; gpgsm->output_cb.data = ciph; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "OUTPUT", gpgsm->output_fd_server, - use_armor ? "--armor" : 0); + err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor" : 0); if (err) return err; - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = set_recipients (gpgsm, recp); @@ -1090,12 +1205,11 @@ gpgsm_export (void *engine, const char *pattern, unsigned int reserved, strcpy (&cmd[7], pattern); gpgsm->output_cb.data = keydata; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "OUTPUT", gpgsm->output_fd_server, - use_armor ? "--armor" : 0); + err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor" : 0); if (err) return err; - _gpgme_io_close (gpgsm->input_cb.fd); - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, INPUT_FD); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (gpgsm, cmd); free (cmd); @@ -1182,12 +1296,11 @@ gpgsm_export_ext (void *engine, const char *pattern[], unsigned int reserved, *linep = '\0'; gpgsm->output_cb.data = keydata; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "OUTPUT", gpgsm->output_fd_server, - use_armor ? "--armor" : 0); + err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor" : 0); if (err) return err; - _gpgme_io_close (gpgsm->input_cb.fd); - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, INPUT_FD); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (gpgsm, line); free (line); @@ -1206,16 +1319,14 @@ gpgsm_genkey (void *engine, gpgme_data_t help_data, int use_armor, return gpg_error (GPG_ERR_INV_VALUE); gpgsm->input_cb.data = help_data; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "INPUT", gpgsm->input_fd_server, - map_input_enc (gpgsm->input_cb.data)); + err = gpgsm_set_fd (gpgsm, INPUT_FD, map_input_enc (gpgsm->input_cb.data)); if (err) return err; gpgsm->output_cb.data = pubkey; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "OUTPUT", gpgsm->output_fd_server, - use_armor ? "--armor" : 0); + err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor" : 0); if (err) return err; - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (gpgsm, "GENKEY"); return err; @@ -1232,12 +1343,11 @@ gpgsm_import (void *engine, gpgme_data_t keydata) return gpg_error (GPG_ERR_INV_VALUE); gpgsm->input_cb.data = keydata; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "INPUT", gpgsm->input_fd_server, - map_input_enc (gpgsm->input_cb.data)); + err = gpgsm_set_fd (gpgsm, INPUT_FD, map_input_enc (gpgsm->input_cb.data)); if (err) return err; - _gpgme_io_close (gpgsm->output_cb.fd); - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, OUTPUT_FD); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (gpgsm, "IMPORT"); return err; @@ -1293,9 +1403,9 @@ gpgsm_keylist (void *engine, const char *pattern, int secret_only, strcpy (&line[9], pattern); } - _gpgme_io_close (gpgsm->input_cb.fd); - _gpgme_io_close (gpgsm->output_cb.fd); - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, INPUT_FD); + gpgsm_clear_fd (gpgsm, OUTPUT_FD); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (gpgsm, line); free (line); @@ -1413,9 +1523,9 @@ gpgsm_keylist_ext (void *engine, const char *pattern[], int secret_only, linep--; *linep = '\0'; - _gpgme_io_close (gpgsm->input_cb.fd); - _gpgme_io_close (gpgsm->output_cb.fd); - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, INPUT_FD); + gpgsm_clear_fd (gpgsm, OUTPUT_FD); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (gpgsm, line); free (line); @@ -1477,16 +1587,14 @@ gpgsm_sign (void *engine, gpgme_data_t in, gpgme_data_t out, } gpgsm->input_cb.data = in; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "INPUT", gpgsm->input_fd_server, - map_input_enc (gpgsm->input_cb.data)); + err = gpgsm_set_fd (gpgsm, INPUT_FD, map_input_enc (gpgsm->input_cb.data)); if (err) return err; gpgsm->output_cb.data = out; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "OUTPUT", gpgsm->output_fd_server, - use_armor ? "--armor" : 0); + err = gpgsm_set_fd (gpgsm, OUTPUT_FD, use_armor ? "--armor" : 0); if (err) return err; - _gpgme_io_close (gpgsm->message_cb.fd); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); err = start (gpgsm, mode == GPGME_SIG_MODE_DETACH ? "SIGN --detached" : "SIGN"); @@ -1505,25 +1613,22 @@ gpgsm_verify (void *engine, gpgme_data_t sig, gpgme_data_t signed_text, return gpg_error (GPG_ERR_INV_VALUE); gpgsm->input_cb.data = sig; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "INPUT", gpgsm->input_fd_server, - map_input_enc (gpgsm->input_cb.data)); + err = gpgsm_set_fd (gpgsm, INPUT_FD, map_input_enc (gpgsm->input_cb.data)); if (err) return err; if (plaintext) { /* Normal or cleartext signature. */ gpgsm->output_cb.data = plaintext; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "OUTPUT", gpgsm->output_fd_server, - 0); - _gpgme_io_close (gpgsm->message_cb.fd); + err = gpgsm_set_fd (gpgsm, OUTPUT_FD, 0); + gpgsm_clear_fd (gpgsm, MESSAGE_FD); } else { /* Detached signature. */ gpgsm->message_cb.data = signed_text; - err = gpgsm_set_fd (gpgsm->assuan_ctx, "MESSAGE", - gpgsm->message_fd_server, 0); - _gpgme_io_close (gpgsm->output_cb.fd); + err = gpgsm_set_fd (gpgsm, MESSAGE_FD, 0); + gpgsm_clear_fd (gpgsm, OUTPUT_FD); } if (!err) -- 2.26.2