diff options
Diffstat (limited to 'src/util/crypto_helper_esign.c')
| -rw-r--r-- | src/util/crypto_helper_esign.c | 560 |
1 files changed, 225 insertions, 335 deletions
diff --git a/src/util/crypto_helper_esign.c b/src/util/crypto_helper_esign.c index eb0673f28..e044d31d1 100644 --- a/src/util/crypto_helper_esign.c +++ b/src/util/crypto_helper_esign.c @@ -1,6 +1,6 @@ /* This file is part of TALER - Copyright (C) 2020 Taler Systems SA + Copyright (C) 2020, 2021 Taler Systems SA TALER is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software @@ -23,6 +23,7 @@ #include "taler_signatures.h" #include "taler-exchange-secmod-eddsa.h" #include <poll.h> +#include "crypto_helper_common.h" struct TALER_CRYPTO_ExchangeSignHelper @@ -44,16 +45,6 @@ struct TALER_CRYPTO_ExchangeSignHelper struct sockaddr_un sa; /** - * Socket address of this process. - */ - struct sockaddr_un my_sa; - - /** - * Template for @e my_sa. - */ - char *template; - - /** * The UNIX domain socket, -1 if we are currently not connected. */ int sock; @@ -76,11 +67,8 @@ static void do_disconnect (struct TALER_CRYPTO_ExchangeSignHelper *esh) { GNUNET_break (0 == close (esh->sock)); - if (0 != unlink (esh->my_sa.sun_path)) - GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, - "unlink", - esh->my_sa.sun_path); esh->sock = -1; + esh->synced = false; } @@ -89,128 +77,62 @@ do_disconnect (struct TALER_CRYPTO_ExchangeSignHelper *esh) * @e sock field in @a esh. * * @param[in,out] esh handle to establish connection for + * @return #GNUNET_OK on success */ -static void +static enum GNUNET_GenericReturnValue try_connect (struct TALER_CRYPTO_ExchangeSignHelper *esh) { - char *tmpdir; - if (-1 != esh->sock) - return; + return GNUNET_OK; esh->sock = socket (AF_UNIX, - SOCK_DGRAM, + SOCK_STREAM, 0); if (-1 == esh->sock) { GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "socket"); - return; - } - tmpdir = GNUNET_DISK_mktemp (esh->template); - if (NULL == tmpdir) - { - do_disconnect (esh); - return; + return GNUNET_SYSERR; } - /* we use >= here because we want the sun_path to always - be 0-terminated */ - if (strlen (tmpdir) >= sizeof (esh->sa.sun_path)) + if (0 != + connect (esh->sock, + (const struct sockaddr *) &esh->sa, + sizeof (esh->sa))) { - GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR, - "PATHS", - "TALER_RUNTIME_DIR", - "path too long"); - GNUNET_free (tmpdir); - do_disconnect (esh); - return; - } - esh->my_sa.sun_family = AF_UNIX; - strncpy (esh->my_sa.sun_path, - tmpdir, - sizeof (esh->sa.sun_path) - 1); - if (0 != unlink (tmpdir)) GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, - "unlink", - tmpdir); - if (0 != bind (esh->sock, - (const struct sockaddr *) &esh->my_sa, - sizeof (esh->my_sa))) - { - GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, - "bind", - tmpdir); + "connect", + esh->sa.sun_path); do_disconnect (esh); - GNUNET_free (tmpdir); - return; - } - /* Fix permissions on client UNIX domain socket, - just in case umask() is not set to enable group write */ - { - char path[sizeof (esh->my_sa.sun_path) + 1]; - - strncpy (path, - esh->my_sa.sun_path, - sizeof (path) - 1); - path[sizeof (esh->my_sa.sun_path)] = '\0'; - - if (0 != chmod (path, - S_IRUSR | S_IWUSR | S_IWGRP)) - { - GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, - "chmod", - path); - } - } - - GNUNET_free (tmpdir); - { - struct GNUNET_MessageHeader hdr = { - .size = htons (sizeof (hdr)), - .type = htons (TALER_HELPER_EDDSA_MT_REQ_INIT) - }; - ssize_t ret; - - ret = sendto (esh->sock, - &hdr, - sizeof (hdr), - 0, - (const struct sockaddr *) &esh->sa, - sizeof (esh->sa)); - if (ret < 0) - { - GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, - "sendto", - esh->sa.sun_path); - do_disconnect (esh); - return; - } - /* We are using SOCK_DGRAM, partial writes should not be possible */ - GNUNET_break (((size_t) ret) == sizeof (hdr)); - GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, - "Successfully sent REQ_INIT\n"); + return GNUNET_SYSERR; } - + return GNUNET_OK; } struct TALER_CRYPTO_ExchangeSignHelper * TALER_CRYPTO_helper_esign_connect ( const struct GNUNET_CONFIGURATION_Handle *cfg, + const char *section, TALER_CRYPTO_ExchangeKeyStatusCallback ekc, void *ekc_cls) { struct TALER_CRYPTO_ExchangeSignHelper *esh; char *unixpath; + char *secname; + + GNUNET_asprintf (&secname, + "%s-secmod-eddsa", + section); if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, - "taler-exchange-secmod-eddsa", + secname, "UNIXPATH", &unixpath)) { GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, - "taler-exchange-secmod-eddsa", + secname, "UNIXPATH"); + GNUNET_free (secname); return NULL; } /* we use >= here because we want the sun_path to always @@ -218,12 +140,14 @@ TALER_CRYPTO_helper_esign_connect ( if (strlen (unixpath) >= sizeof (esh->sa.sun_path)) { GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR, - "taler-exchange-secmod-eddsa", + secname, "UNIXPATH", "path too long"); GNUNET_free (unixpath); + GNUNET_free (secname); return NULL; } + GNUNET_free (secname); esh = GNUNET_new (struct TALER_CRYPTO_ExchangeSignHelper); esh->ekc = ekc; esh->ekc_cls = ekc_cls; @@ -233,50 +157,13 @@ TALER_CRYPTO_helper_esign_connect ( sizeof (esh->sa.sun_path) - 1); GNUNET_free (unixpath); esh->sock = -1; + if (GNUNET_OK != + try_connect (esh)) { - char *tmpdir; - char *template; - - if (GNUNET_OK != - GNUNET_CONFIGURATION_get_value_filename (cfg, - "taler-exchange-secmod-eddsa", - "CLIENT_DIR", - &tmpdir)) - { - GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, - "taler-exchange-secmod-eddsa", - "CLIENT_DIR"); - GNUNET_free (esh); - return NULL; - } - GNUNET_asprintf (&template, - "%s/cli", - tmpdir); - /* We expect the service to create the client directory */ - if (GNUNET_OK != - GNUNET_DISK_directory_test (tmpdir, - GNUNET_YES)) - { - GNUNET_log (GNUNET_ERROR_TYPE_ERROR, - "Unable to read secmod client directory (%s)\n", - tmpdir); - GNUNET_free (esh); - GNUNET_free (template); - GNUNET_free (tmpdir); - return NULL; - } - GNUNET_free (tmpdir); - esh->template = template; - if (strlen (template) >= sizeof (esh->sa.sun_path)) - { - GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR, - "PATHS", - "TALER_RUNTIME_DIR", - "path too long"); - TALER_CRYPTO_helper_esign_disconnect (esh); - return NULL; - } + TALER_CRYPTO_helper_esign_disconnect (esh); + return NULL; } + TALER_CRYPTO_helper_esign_poll (esh); return esh; } @@ -289,7 +176,7 @@ TALER_CRYPTO_helper_esign_connect ( * @param hdr message that we received * @return #GNUNET_OK on success */ -static int +static enum GNUNET_GenericReturnValue handle_mt_avail (struct TALER_CRYPTO_ExchangeSignHelper *esh, const struct GNUNET_MessageHeader *hdr) { @@ -304,7 +191,7 @@ handle_mt_avail (struct TALER_CRYPTO_ExchangeSignHelper *esh, if (GNUNET_OK != TALER_exchange_secmod_eddsa_verify ( &kan->exchange_pub, - GNUNET_TIME_absolute_ntoh (kan->anchor_time), + GNUNET_TIME_timestamp_ntoh (kan->anchor_time), GNUNET_TIME_relative_ntoh (kan->duration), &kan->secm_pub, &kan->secm_sig)) @@ -313,7 +200,7 @@ handle_mt_avail (struct TALER_CRYPTO_ExchangeSignHelper *esh, return GNUNET_SYSERR; } esh->ekc (esh->ekc_cls, - GNUNET_TIME_absolute_ntoh (kan->anchor_time), + GNUNET_TIME_timestamp_ntoh (kan->anchor_time), GNUNET_TIME_relative_ntoh (kan->duration), &kan->exchange_pub, &kan->secm_pub, @@ -329,7 +216,7 @@ handle_mt_avail (struct TALER_CRYPTO_ExchangeSignHelper *esh, * @param hdr message that we received * @return #GNUNET_OK on success */ -static int +static enum GNUNET_GenericReturnValue handle_mt_purge (struct TALER_CRYPTO_ExchangeSignHelper *esh, const struct GNUNET_MessageHeader *hdr) { @@ -342,7 +229,7 @@ handle_mt_purge (struct TALER_CRYPTO_ExchangeSignHelper *esh, return GNUNET_SYSERR; } esh->ekc (esh->ekc_cls, - GNUNET_TIME_UNIT_ZERO_ABS, + GNUNET_TIME_UNIT_ZERO_TS, GNUNET_TIME_UNIT_ZERO, &pn->exchange_pub, NULL, @@ -351,101 +238,62 @@ handle_mt_purge (struct TALER_CRYPTO_ExchangeSignHelper *esh, } -/** - * Wait until the socket is ready to read. - * - * @param esh helper to wait for - * @return false on timeout (after 1s) - */ -static bool -await_read_ready (struct TALER_CRYPTO_ExchangeSignHelper *esh) -{ - /* wait for reply with 1s timeout */ - struct pollfd pfd = { - .fd = esh->sock, - .events = POLLIN - }; - sigset_t sigmask; - struct timespec ts = { - .tv_sec = 1 - }; - int ret; - - GNUNET_assert (0 == sigemptyset (&sigmask)); - GNUNET_assert (0 == sigaddset (&sigmask, SIGTERM)); - GNUNET_assert (0 == sigaddset (&sigmask, SIGHUP)); - ret = ppoll (&pfd, - 1, - &ts, - &sigmask); - if ( (-1 == ret) && - (EINTR != errno) ) - GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, - "ppoll"); - return (0 < ret); -} - - void TALER_CRYPTO_helper_esign_poll (struct TALER_CRYPTO_ExchangeSignHelper *esh) { char buf[UINT16_MAX]; - ssize_t ret; + size_t off = 0; unsigned int retry_limit = 3; const struct GNUNET_MessageHeader *hdr = (const struct GNUNET_MessageHeader *) buf; - int flag = MSG_DONTWAIT; - try_connect (esh); - if (-1 == esh->sock) + if (GNUNET_OK != + try_connect (esh)) return; /* give up */ while (1) { + uint16_t msize; + ssize_t ret; + ret = recv (esh->sock, - buf, - sizeof (buf), - flag); + buf + off, + sizeof (buf) - off, + (esh->synced && (0 == off)) + ? MSG_DONTWAIT + : 0); if (ret < 0) { + if (EINTR == errno) + continue; if (EAGAIN == errno) { - GNUNET_assert (0 != flag); - if (esh->synced) - break; - if (! await_read_ready (esh)) - { - /* timeout AND not synced => full reconnect */ - GNUNET_log (GNUNET_ERROR_TYPE_INFO, - "Restarting connection to EdDSA helper, did not come up properly\n"); - do_disconnect (esh); - if (0 == retry_limit) - return; /* give up */ - try_connect (esh); - if (-1 == esh->sock) - return; /* give up */ - retry_limit--; - flag = MSG_DONTWAIT; - } - else - { - flag = 0; /* syscall must be non-blocking this time */ - } - continue; /* try again */ + GNUNET_assert (esh->synced); + GNUNET_assert (0 == off); + break; } GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "recv"); do_disconnect (esh); - return; + if (0 == retry_limit) + return; /* give up */ + if (GNUNET_OK != + try_connect (esh)) + return; /* give up */ + retry_limit--; + continue; } - - flag = MSG_DONTWAIT; - if ( (ret < sizeof (struct GNUNET_MessageHeader)) || - (ret != ntohs (hdr->size)) ) + if (0 == ret) { - GNUNET_break_op (0); - do_disconnect (esh); + GNUNET_break (0 == off); return; } + off += ret; +more: + if (off < sizeof (struct GNUNET_MessageHeader)) + continue; + msize = ntohs (hdr->size); + if (off < msize) + continue; switch (ntohs (hdr->type)) { case TALER_HELPER_EDDSA_MT_AVAIL: @@ -474,10 +322,19 @@ TALER_CRYPTO_helper_esign_poll (struct TALER_CRYPTO_ExchangeSignHelper *esh) esh->synced = true; break; default: + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Received unexpected message of type %d (len: %u)\n", + (unsigned int) ntohs (hdr->type), + (unsigned int) msize); GNUNET_break_op (0); do_disconnect (esh); return; } + memmove (buf, + &buf[msize], + off - msize); + off -= msize; + goto more; } } @@ -489,131 +346,169 @@ TALER_CRYPTO_helper_esign_sign_ ( struct TALER_ExchangePublicKeyP *exchange_pub, struct TALER_ExchangeSignatureP *exchange_sig) { + uint32_t purpose_size = ntohl (purpose->size); + + if (GNUNET_OK != + try_connect (esh)) + { + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Failed to connect to helper\n"); + return TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE; + } + GNUNET_assert (purpose_size < + UINT16_MAX - sizeof (struct TALER_CRYPTO_EddsaSignRequest)); { - uint32_t purpose_size = ntohl (purpose->size); char buf[sizeof (struct TALER_CRYPTO_EddsaSignRequest) + purpose_size - sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose)]; struct TALER_CRYPTO_EddsaSignRequest *sr = (struct TALER_CRYPTO_EddsaSignRequest *) buf; - ssize_t ret; - try_connect (esh); - if (-1 == esh->sock) - { - GNUNET_log (GNUNET_ERROR_TYPE_WARNING, - "Failed to connect to helper\n"); - return TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE; - } sr->header.size = htons (sizeof (buf)); sr->header.type = htons (TALER_HELPER_EDDSA_MT_REQ_SIGN); sr->reserved = htonl (0); - memcpy (&sr->purpose, - purpose, - purpose_size); - ret = sendto (esh->sock, - buf, - sizeof (buf), - 0, - (const struct sockaddr *) &esh->sa, - sizeof (esh->sa)); - if (ret < 0) + GNUNET_memcpy (&sr->purpose, + purpose, + purpose_size); + if (GNUNET_OK != + TALER_crypto_helper_send_all (esh->sock, + buf, + sizeof (buf))) { GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, - "sendto", + "send", esh->sa.sun_path); do_disconnect (esh); return TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE; } - /* We are using SOCK_DGRAM, partial writes should not be possible */ - GNUNET_break (((size_t) ret) == sizeof (buf)); } - while (1) { char buf[UINT16_MAX]; - ssize_t ret; + size_t off = 0; const struct GNUNET_MessageHeader *hdr = (const struct GNUNET_MessageHeader *) buf; + bool finished = false; + enum TALER_ErrorCode ec = TALER_EC_INVALID; - if (! await_read_ready (esh)) - { - do_disconnect (esh); - GNUNET_log (GNUNET_ERROR_TYPE_WARNING, - "Timeout waiting for helper\n"); - return TALER_EC_GENERIC_TIMEOUT; - } - ret = recv (esh->sock, - buf, - sizeof (buf), - 0); - if (ret < 0) + while (1) { - GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, - "recv"); - do_disconnect (esh); - return TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE; - } - if ( (ret < sizeof (struct GNUNET_MessageHeader)) || - (ret != ntohs (hdr->size)) ) - { - GNUNET_break_op (0); - do_disconnect (esh); - return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; - } - switch (ntohs (hdr->type)) - { - case TALER_HELPER_EDDSA_MT_RES_SIGNATURE: - if (ret != sizeof (struct TALER_CRYPTO_EddsaSignResponse)) + ssize_t ret; + uint16_t msize; + + ret = recv (esh->sock, + &buf[off], + sizeof (buf) - off, + (finished && (0 == off)) + ? MSG_DONTWAIT + : 0); + if (ret < 0) { - GNUNET_break_op (0); + if (EINTR == errno) + continue; + if (EAGAIN == errno) + { + GNUNET_assert (finished); + GNUNET_assert (0 == off); + break; + } + GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, + "recv"); do_disconnect (esh); - return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; + return TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE; } + if (0 == ret) { - const struct TALER_CRYPTO_EddsaSignResponse *sr = - (const struct TALER_CRYPTO_EddsaSignResponse *) buf; - *exchange_sig = sr->exchange_sig; - *exchange_pub = sr->exchange_pub; - return TALER_EC_NONE; - } - case TALER_HELPER_EDDSA_MT_RES_SIGN_FAILURE: - if (ret != sizeof (struct TALER_CRYPTO_EddsaSignFailure)) - { - GNUNET_break_op (0); - do_disconnect (esh); + GNUNET_break (0 == off); + if (finished) + return TALER_EC_NONE; return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; } + off += ret; +more: + if (off < sizeof (struct GNUNET_MessageHeader)) + continue; + msize = ntohs (hdr->size); + if (off < msize) + continue; + switch (ntohs (hdr->type)) { - const struct TALER_CRYPTO_EddsaSignFailure *sf = - (const struct TALER_CRYPTO_EddsaSignFailure *) buf; + case TALER_HELPER_EDDSA_MT_RES_SIGNATURE: + if (msize != sizeof (struct TALER_CRYPTO_EddsaSignResponse)) + { + GNUNET_break_op (0); + do_disconnect (esh); + return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; + } + if (finished) + { + GNUNET_break_op (0); + do_disconnect (esh); + return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; + } + { + const struct TALER_CRYPTO_EddsaSignResponse *sr = + (const struct TALER_CRYPTO_EddsaSignResponse *) buf; + *exchange_sig = sr->exchange_sig; + *exchange_pub = sr->exchange_pub; + finished = true; + ec = TALER_EC_NONE; + break; + } + case TALER_HELPER_EDDSA_MT_RES_SIGN_FAILURE: + if (msize != sizeof (struct TALER_CRYPTO_EddsaSignFailure)) + { + GNUNET_break_op (0); + do_disconnect (esh); + return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; + } + { + const struct TALER_CRYPTO_EddsaSignFailure *sf = + (const struct TALER_CRYPTO_EddsaSignFailure *) buf; - return (enum TALER_ErrorCode) ntohl (sf->ec); - } - case TALER_HELPER_EDDSA_MT_AVAIL: - if (GNUNET_OK != - handle_mt_avail (esh, - hdr)) - { - GNUNET_break_op (0); - do_disconnect (esh); - return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; - } - break; /* while(1) loop ensures we recvfrom() again */ - case TALER_HELPER_EDDSA_MT_PURGE: - if (GNUNET_OK != - handle_mt_purge (esh, - hdr)) - { + finished = true; + ec = (enum TALER_ErrorCode) ntohl (sf->ec); + break; + } + case TALER_HELPER_EDDSA_MT_AVAIL: + if (GNUNET_OK != + handle_mt_avail (esh, + hdr)) + { + GNUNET_break_op (0); + do_disconnect (esh); + return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; + } + break; /* while(1) loop ensures we recv() again */ + case TALER_HELPER_EDDSA_MT_PURGE: + if (GNUNET_OK != + handle_mt_purge (esh, + hdr)) + { + GNUNET_break_op (0); + do_disconnect (esh); + return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; + } + break; /* while(1) loop ensures we recv() again */ + case TALER_HELPER_EDDSA_SYNCED: + GNUNET_log (GNUNET_ERROR_TYPE_WARNING, + "Synchronized add odd time with EdDSA helper!\n"); + esh->synced = true; + break; + default: GNUNET_break_op (0); + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Received unexpected message of type %u\n", + ntohs (hdr->type)); do_disconnect (esh); return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; } - break; /* while(1) loop ensures we recvfrom() again */ - default: - GNUNET_break_op (0); - do_disconnect (esh); - return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG; - } + memmove (buf, + &buf[msize], + off - msize); + off -= msize; + goto more; + } /* while(1) */ + return ec; } } @@ -623,31 +518,27 @@ TALER_CRYPTO_helper_esign_revoke ( struct TALER_CRYPTO_ExchangeSignHelper *esh, const struct TALER_ExchangePublicKeyP *exchange_pub) { - struct TALER_CRYPTO_EddsaRevokeRequest rr = { - .header.size = htons (sizeof (rr)), - .header.type = htons (TALER_HELPER_EDDSA_MT_REQ_REVOKE), - .exchange_pub = *exchange_pub - }; - ssize_t ret; - - try_connect (esh); - if (-1 == esh->sock) + if (GNUNET_OK != + try_connect (esh)) return; /* give up */ - ret = sendto (esh->sock, - &rr, - sizeof (rr), - 0, - (const struct sockaddr *) &esh->sa, - sizeof (esh->sa)); - if (ret < 0) { - GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, - "sendto"); - do_disconnect (esh); - return; + struct TALER_CRYPTO_EddsaRevokeRequest rr = { + .header.size = htons (sizeof (rr)), + .header.type = htons (TALER_HELPER_EDDSA_MT_REQ_REVOKE), + .exchange_pub = *exchange_pub + }; + + if (GNUNET_OK != + TALER_crypto_helper_send_all (esh->sock, + &rr, + sizeof (rr))) + { + GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, + "send"); + do_disconnect (esh); + return; + } } - /* We are using SOCK_DGRAM, partial writes should not be possible */ - GNUNET_break (((size_t) ret) == sizeof (rr)); } @@ -657,7 +548,6 @@ TALER_CRYPTO_helper_esign_disconnect ( { if (-1 != esh->sock) do_disconnect (esh); - GNUNET_free (esh->template); GNUNET_free (esh); } |