src/common.h

   1 /*
   2     Copyright (C) 2006-2018 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 as published by
   8     the Free Software Foundation, either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     Pwmd is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with Pwmd.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19 #ifndef COMMON_H
  20 #define COMMON_H
  21
  22 #include <sys/types.h>
  23 #include <sys/stat.h>
  24 #include <pthread.h>
  25 #include "pwmd-error.h"
  26 #include <assuan.h>
  27 #include <stdint.h>
  28 #include <libxml/xmlerror.h>
  29 #include <pwd.h>
  30 #include <time.h>
  31
  32 #ifdef ENABLE_NLS
  33 #ifdef HAVE_LOCALE_H
  34 #include <locale.h>
  35 #endif
  36 #endif
  37
  38 #ifdef HAVE_LIMITS_H
  39 #include <limits.h>
  40 #ifndef LINE_MAX
  41 #ifdef _POSIX2_LINE_MAX
  42 #define LINE_MAX _POSIX2_LINE_MAX
  43 #else
  44 #define LINE_MAX 2048
  45 #endif
  46 #endif
  47 #endif
  48
  49 #ifndef _
  50 #include "gettext.h"
  51 #define _(msgid) gettext(msgid)
  52 #endif
  53
  54 #ifdef WITH_GNUTLS
  55 #include "tls.h"
  56 #endif
  57 #include "status.h"
  58 #include "bulk.h"
  59
  60 #define CLIENT_STATE_UNKNOWN    0
  61 #define CLIENT_STATE_INIT       1
  62 #define CLIENT_STATE_IDLE       2
  63 #define CLIENT_STATE_COMMAND    3
  64 #define CLIENT_STATE_DISCON     4
  65
  66 struct client_thread_s
  67 {
  68   pthread_t tid;
  69   int fd;
  70   pthread_mutex_t status_mutex;
  71   struct status_msg_s *msg_queue;
  72   int status_msg_pipe[2];
  73   int wrote_status;
  74   struct client_s *cl;
  75   assuan_peercred_t peer;
  76   unsigned state;
  77   int eof;
  78   time_t conntime;
  79   char *name;
  80 #ifdef WITH_GNUTLS
  81   int timeout;
  82   int buffer_timeout;
  83   int last_buffer_size;
  84   int remote;
  85   struct tls_s *tls;
  86   char *peeraddr;
  87 #endif
  88 };
  89
  90 struct client_s
  91 {
  92   assuan_context_t ctx;
  93   int flock_fd;
  94   xmlDocPtr doc;
  95   xmlErrorPtr xml_error;
  96   char *filename;
  97   struct client_thread_s *thd;
  98   struct crypto_s *crypto;
  99   unsigned opts;
 100   unsigned flags;
 101   char *import_root;
 102   long lock_timeout;            /* In tenths of a second. */
 103   gpg_error_t last_rc;
 104   char *last_error;             /* ELOOP element path. */
 105   unsigned char *crc;           /* Of the data file. */
 106   int no_access_param;          /* Treat no "access" config param as allowed. */
 107   int client_state;             /* OPTION to receive client state msgs. */
 108   int did_cow;                  /* Have already done a CoW operation. */
 109   struct bulk_cmd_s *bulk_p;    /* For the command result set in xfer_data(). */
 110 #ifdef WITH_GNUTLS
 111   int disco;                    /* Rather than thread->state to avoid lock. */
 112 #endif
 113 };
 114
 115 pthread_key_t thread_name_key;
 116 pthread_mutex_t cn_mutex;
 117 struct slist_s *cn_thread_list;
 118
 119 void log_write (const char *fmt, ...);
 120 int assuan_log_cb (assuan_context_t ctx, void *data, unsigned cat,
 121                    const char *msg);
 122 gpg_error_t send_error (assuan_context_t ctx, gpg_error_t e);
 123 void update_client_state (struct client_s *client, unsigned s);
 124 gpg_error_t lock_flock (assuan_context_t ctx, const char *filename, int type,
 125                         int *fd);
 126 void unlock_flock (int *fd);
 127
 128 #endif