src/common.h

   1 /*
   2     Copyright (C) 2006-2022 Ben Kibbey <bjk@luxsci.net>
   3
   4     This file is part of pwmd.
   5
   6     Pwmd is free software: you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License version 2 as
   8     published by the Free Software Foundation.
   9
  10     Pwmd is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with Pwmd.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18 #ifndef COMMON_H
  19 #define COMMON_H
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include <config.h>
  23 #endif
  24
  25 #include <sys/types.h>
  26 #include <sys/stat.h>
  27 #include <pthread.h>
  28 #include "pwmd-error.h"
  29 #include <assuan.h>
  30 #include <libxml/xmlerror.h>
  31 #ifdef HAVE_STDINT_H
  32 #include <stdint.h>
  33 #endif
  34 #include <pwd.h>
  35 #include <time.h>
  36
  37 #ifdef ENABLE_NLS
  38 #ifdef HAVE_LOCALE_H
  39 #include <locale.h>
  40 #endif
  41 #endif
  42
  43 #ifdef HAVE_LIMITS_H
  44 #include <limits.h>
  45 #ifndef LINE_MAX
  46 #ifdef _POSIX2_LINE_MAX
  47 #define LINE_MAX _POSIX2_LINE_MAX
  48 #else
  49 #define LINE_MAX 2048
  50 #endif
  51 #endif
  52 #endif
  53
  54 #ifndef _
  55 #include "gettext.h"
  56 #define _(msgid) gettext(msgid)
  57 #endif
  58
  59 #ifdef WITH_GNUTLS
  60 #include "tls.h"
  61 #endif
  62 #include "status.h"
  63 #include "bulk.h"
  64
  65 #define CLIENT_STATE_UNKNOWN    0
  66 #define CLIENT_STATE_INIT       1
  67 #define CLIENT_STATE_IDLE       2
  68 #define CLIENT_STATE_COMMAND    3
  69 #define CLIENT_STATE_DISCON     4
  70
  71 struct client_thread_s
  72 {
  73   pthread_t tid;
  74   int fd;
  75   pthread_mutex_t status_mutex;
  76   struct status_msg_s *msg_queue;
  77   int status_msg_pipe[2];
  78   int wrote_status;
  79   struct client_s *cl;
  80   assuan_peercred_t peer;
  81   unsigned state;
  82   int eof;
  83   time_t conntime;
  84   char *name;
  85   int send_state;               /* OPTION to receive client state msgs. */
  86 #ifdef WITH_GNUTLS
  87   int timeout;
  88   int buffer_timeout;
  89   int last_buffer_size;
  90   int remote;
  91   struct tls_s *tls;
  92   char *peeraddr;
  93 #endif
  94 };
  95
  96 struct client_s
  97 {
  98   assuan_context_t ctx;
  99   int flock_fd;
 100   xmlDocPtr doc;
 101   xmlErrorPtr xml_error;
 102   char *filename;
 103   struct client_thread_s *thd;
 104   struct crypto_s *crypto;
 105   unsigned opts;
 106   unsigned flags;
 107   char *import_root;
 108   long lock_timeout;            /* In tenths of a second. */
 109   gpg_error_t last_rc;
 110   char *last_error;             /* ELOOP element path. */
 111   unsigned char *crc;           /* Of the data file. */
 112   int did_cow;                  /* Have already done a CoW operation. */
 113   struct bulk_cmd_s *bulk_p;    /* For the command result set in xfer_data(). */
 114 #ifdef WITH_GNUTLS
 115   int disco;                    /* Rather than thread->state to avoid lock. */
 116 #endif
 117 };
 118
 119 extern pthread_key_t thread_name_key;
 120 extern pthread_mutex_t cn_mutex;
 121 extern struct slist_s *cn_thread_list;
 122
 123 void log_write (const char *fmt, ...);
 124 int assuan_log_cb (assuan_context_t ctx, void *data, unsigned cat,
 125                    const char *msg);
 126 gpg_error_t send_error (assuan_context_t ctx, gpg_error_t e);
 127 void update_client_state (struct client_s *client, unsigned s);
 128 gpg_error_t lock_flock (assuan_context_t ctx, const char *filename, int type,
 129                         int *fd);
 130 void unlock_flock (int *fd);
 131
 132 #endif