| /*------------------------------------------------------------------------- |
| * |
| * libpq_be.h |
| * This file contains definitions for structures and externs used |
| * by the postmaster during client authentication. |
| * |
| * Note that this is backend-internal and is NOT exported to clients. |
| * Structs that need to be client-visible are in pqcomm.h. |
| * |
| * |
| * Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group |
| * Portions Copyright (c) 1994, Regents of the University of California |
| * |
| * $PostgreSQL: pgsql/src/include/libpq/libpq-be.h,v 1.74 2010/01/15 09:19:08 heikki Exp $ |
| * |
| *------------------------------------------------------------------------- |
| */ |
| #ifndef LIBPQ_BE_H |
| #define LIBPQ_BE_H |
| |
| #ifdef HAVE_SYS_TIME_H |
| #include <sys/time.h> |
| #endif |
| #ifdef USE_SSL |
| #include <openssl/ssl.h> |
| #include <openssl/err.h> |
| #endif |
| #ifdef HAVE_NETINET_TCP_H |
| #include <netinet/tcp.h> |
| #endif |
| |
| #ifdef ENABLE_GSS |
| #if defined(HAVE_GSSAPI_H) |
| #include <gssapi.h> |
| #else |
| #include <gssapi/gssapi.h> |
| #endif /* HAVE_GSSAPI_H */ |
| /* |
| * GSSAPI brings in headers that set a lot of things in the global namespace on win32, |
| * that doesn't match the msvc build. It gives a bunch of compiler warnings that we ignore, |
| * but also defines a symbol that simply does not exist. Undefine it again. |
| */ |
| #ifdef WIN32_ONLY_COMPILER |
| #undef HAVE_GETADDRINFO |
| #endif |
| #endif /* ENABLE_GSS */ |
| |
| #ifdef ENABLE_SSPI |
| #define SECURITY_WIN32 |
| #if defined(WIN32) && !defined(WIN32_ONLY_COMPILER) |
| #include <ntsecapi.h> |
| #endif |
| #include <security.h> |
| #undef SECURITY_WIN32 |
| |
| #ifndef ENABLE_GSS |
| #ifndef GSS_BUFFER_DESC_DEFINED |
| /* |
| * Define a fake structure compatible with GSSAPI on Unix. |
| */ |
| typedef struct |
| { |
| void *value; |
| int length; |
| } gss_buffer_desc; |
| #define GSS_BUFFER_DESC_DEFINED |
| #endif |
| #endif |
| #endif /* ENABLE_SSPI */ |
| |
| #include "libpq/hba.h" |
| #include "libpq/pqcomm.h" |
| #include "utils/timestamp.h" |
| #include "lib/stringinfo.h" |
| |
| |
| typedef enum CAC_state |
| { |
| CAC_OK, CAC_STARTUP, CAC_SHUTDOWN, CAC_RECOVERY, CAC_TOOMANY, CAC_MIRROR_OR_QUIESCENT |
| /* ,CAC_WAITBACKUP */ |
| } CAC_state; |
| |
| |
| /* |
| * GSSAPI specific state information |
| */ |
| #if defined(ENABLE_GSS) | defined(ENABLE_SSPI) |
| typedef struct |
| { |
| gss_buffer_desc outbuf; /* GSSAPI output token buffer */ |
| #ifdef ENABLE_GSS |
| gss_cred_id_t cred; /* GSSAPI connection cred's */ |
| gss_ctx_id_t ctx; /* GSSAPI connection context */ |
| gss_name_t name; /* GSSAPI client name */ |
| #endif |
| } pg_gssinfo; |
| #endif |
| |
| /* |
| * This is used by the postmaster in its communication with frontends. It |
| * contains all state information needed during this communication before the |
| * backend is run. The Port structure is kept in malloc'd memory and is |
| * still available when a backend is running (see MyProcPort). The data |
| * it points to must also be malloc'd, or else palloc'd in TopMemoryContext, |
| * so that it survives into PostgresMain execution! |
| */ |
| |
| typedef struct Port |
| { |
| pgsocket sock; /* File descriptor */ |
| bool noblock; /* is the socket in non-blocking mode? */ |
| ProtocolVersion proto; /* FE/BE protocol version */ |
| SockAddr laddr; /* local addr (postmaster) */ |
| SockAddr raddr; /* remote addr (client) */ |
| char *remote_host; /* name (or ip addr) of remote host */ |
| char *remote_port; /* text rep of remote port */ |
| CAC_state canAcceptConnections; /* postmaster connection status */ |
| |
| /* |
| * Information that needs to be saved from the startup packet and passed |
| * into backend execution. "char *" fields are NULL if not set. |
| * guc_options points to a List of alternating option names and values. |
| */ |
| char *database_name; |
| char *user_name; |
| char *cmdline_options; |
| List *guc_options; |
| |
| /* GPSQL segments information */ |
| Oid dboid; |
| Oid dbdtsoid; |
| char *bootstrap_user; |
| int encoding; |
| StringInfoData override_options; /* database/user config */ |
| |
| /* |
| * Information that needs to be held during the authentication cycle. |
| */ |
| HbaLine *hba; |
| char md5Salt[4]; /* Password salt */ |
| |
| /* |
| * Information that really has no business at all being in struct Port, |
| * but since it gets used by elog.c in the same way as database_name and |
| * other members of this struct, we may as well keep it here. |
| */ |
| TimestampTz SessionStartTime; /* backend start time */ |
| |
| /* |
| * TCP keepalive settings. |
| * |
| * default values are 0 if AF_UNIX or not yet known; current values are 0 |
| * if AF_UNIX or using the default. Also, -1 in a default value means we |
| * were unable to find out the default (getsockopt failed). |
| */ |
| int default_keepalives_idle; |
| int default_keepalives_interval; |
| int default_keepalives_count; |
| int keepalives_idle; |
| int keepalives_interval; |
| int keepalives_count; |
| |
| #if defined(ENABLE_GSS) || defined(ENABLE_SSPI) |
| |
| /* |
| * If GSSAPI is supported, store GSSAPI information. Oterwise, store a |
| * NULL pointer to make sure offsets in the struct remain the same. |
| */ |
| pg_gssinfo *gss; |
| #else |
| void *gss; |
| #endif |
| |
| /* |
| * SSL structures (keep these last so that USE_SSL doesn't affect |
| * locations of other fields) |
| */ |
| #ifdef USE_SSL |
| SSL *ssl; |
| X509 *peer; |
| char *peer_cn; |
| unsigned long count; |
| #endif |
| } Port; |
| |
| |
| extern ProtocolVersion FrontendProtocol; |
| |
| /* TCP keepalives configuration. These are no-ops on an AF_UNIX socket. */ |
| |
| extern int pq_getkeepalivesidle(Port *port); |
| extern int pq_getkeepalivesinterval(Port *port); |
| extern int pq_getkeepalivescount(Port *port); |
| |
| extern int pq_setkeepalivesidle(int idle, Port *port); |
| extern int pq_setkeepalivesinterval(int interval, Port *port); |
| extern int pq_setkeepalivescount(int count, Port *port); |
| |
| #endif /* LIBPQ_BE_H */ |