src/CachePeer.h

   1 #ifndef SQUID_CACHEPEER_H_
   2 #define SQUID_CACHEPEER_H_
   3 /*
   4  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   5  * ----------------------------------------------------------
   6  *
   7  *  Squid is the result of efforts by numerous individuals from
   8  *  the Internet community; see the CONTRIBUTORS file for full
   9  *  details.   Many organizations have provided support for Squid's
  10  *  development; see the SPONSORS file for full details.  Squid is
  11  *  Copyrighted (C) 2001 by the Regents of the University of
  12  *  California; see the COPYRIGHT file for full details.  Squid
  13  *  incorporates software developed and/or copyrighted by other
  14  *  sources; see the CREDITS file for full details.
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License as published by
  18  *  the Free Software Foundation; either version 2 of the License, or
  19  *  (at your option) any later version.
  20  *
  21  *  This program is distributed in the hope that it will be useful,
  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  *  GNU General Public License for more details.
  25  *
  26  *  You should have received a copy of the GNU General Public License
  27  *  along with this program; if not, write to the Free Software
  28  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  29  *
  30  */
  31
  32 #include "acl/forward.h"
  33 #include "enums.h"
  34 #include "icp_opcode.h"
  35 #include "ip/Address.h"
  36
  37 //TODO: remove, it is unconditionally defined and always used.
  38 #define PEER_MULTICAST_SIBLINGS 1
  39
  40 #if USE_SSL
  41 #include <openssl/ssl.h>
  42 #endif
  43
  44 class CachePeerDomainList;
  45 class NeighborTypeDomainList;
  46 class PeerDigest;
  47
  48 // currently a POD
  49 class CachePeer
  50 {
  51 public:
  52     u_int index;
  53     char *name;
  54     char *host;
  55     peer_t type;
  56
  57     Ip::Address in_addr;
  58
  59     struct {
  60         int pings_sent;
  61         int pings_acked;
  62         int fetches;
  63         int rtt;
  64         int ignored_replies;
  65         int n_keepalives_sent;
  66         int n_keepalives_recv;
  67         time_t probe_start;
  68         time_t last_query;
  69         time_t last_reply;
  70         time_t last_connect_failure;
  71         time_t last_connect_probe;
  72         int logged_state;   /* so we can print dead/revived msgs */
  73         int conn_open;      /* current opened connections */
  74     } stats;
  75
  76     struct {
  77         int version;
  78         int counts[ICP_END+1];
  79         unsigned short port;
  80     } icp;
  81
  82 #if USE_HTCP
  83     struct {
  84         double version;
  85         int counts[2];
  86         unsigned short port;
  87     } htcp;
  88 #endif
  89
  90     unsigned short http_port;
  91     CachePeerDomainList *peer_domain;
  92     NeighborTypeDomainList *typelist;
  93     acl_access *access;
  94
  95     struct {
  96         bool proxy_only;
  97         bool no_query;
  98         bool background_ping;
  99         bool no_digest;
 100         bool default_parent;
 101         bool roundrobin;
 102         bool weighted_roundrobin;
 103         bool mcast_responder;
 104         bool closest_only;
 105 #if USE_HTCP
 106         bool htcp;
 107         bool htcp_oldsquid;
 108         bool htcp_no_clr;
 109         bool htcp_no_purge_clr;
 110         bool htcp_only_clr;
 111         bool htcp_forward_clr;
 112 #endif
 113         bool no_netdb_exchange;
 114 #if USE_DELAY_POOLS
 115         bool no_delay;
 116 #endif
 117         bool allow_miss;
 118         bool carp;
 119         struct {
 120             bool set; //If false, whole url is to be used. Overrides others
 121             bool scheme;
 122             bool host;
 123             bool port;
 124             bool path;
 125             bool params;
 126         } carp_key;
 127 #if USE_AUTH
 128         bool userhash;
 129 #endif
 130         bool sourcehash;
 131         bool originserver;
 132         bool no_tproxy;
 133 #if PEER_MULTICAST_SIBLINGS
 134         bool mcast_siblings;
 135 #endif
 136     } options;
 137
 138     int weight;
 139     int basetime;
 140
 141     struct {
 142         double avg_n_members;
 143         int n_times_counted;
 144         int n_replies_expected;
 145         int ttl;
 146         int id;
 147
 148         struct {
 149             bool count_event_pending;
 150             bool counting;
 151         } flags;
 152     } mcast;
 153 #if USE_CACHE_DIGESTS
 154
 155     PeerDigest *digest;
 156     char *digest_url;
 157 #endif
 158
 159     int tcp_up;         /* 0 if a connect() fails */
 160
 161     Ip::Address addresses[10];
 162     int n_addresses;
 163     int rr_count;
 164     CachePeer *next;
 165     int testing_now;
 166
 167     struct {
 168         unsigned int hash;
 169         double load_multiplier;
 170         double load_factor; /* normalized weight value */
 171     } carp;
 172 #if USE_AUTH
 173     struct {
 174         unsigned int hash;
 175         double load_multiplier;
 176         double load_factor; /* normalized weight value */
 177     } userhash;
 178 #endif
 179     struct {
 180         unsigned int hash;
 181         double load_multiplier;
 182         double load_factor; /* normalized weight value */
 183     } sourcehash;
 184
 185     char *login;        /* Proxy authorization */
 186     time_t connect_timeout;
 187     int connect_fail_limit;
 188     int max_conn;
 189     char *domain;       /* Forced domain */
 190 #if USE_SSL
 191
 192     int use_ssl;
 193     char *sslcert;
 194     char *sslkey;
 195     int sslversion;
 196     char *ssloptions;
 197     char *sslcipher;
 198     char *sslcafile;
 199     char *sslcapath;
 200     char *sslcrlfile;
 201     char *sslflags;
 202     char *ssldomain;
 203     SSL_CTX *sslContext;
 204     SSL_SESSION *sslSession;
 205 #endif
 206
 207     int front_end_https;
 208     int connection_auth;
 209 };
 210
 211 #endif /* SQUID_CACHEPEER_H_ */