/*
* ProFTPD - FTP server daemon
* Copyright (c) 1997, 1998 Public Flood Software
* Copyright (c) 1999, 2000 MacGyver aka Habeeb J. Dihu <macgyver@tos.net>
* Copyright (c) 2001-2011 The ProFTPD Project team
*
* This program 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 Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA.
*
* As a special exemption, Public Flood Software/MacGyver aka Habeeb J. Dihu
* and other respective copyright holders give permission to link this program
* with OpenSSL, and distribute the resulting executable, without including
* the source code for OpenSSL in the source distribution.
*/
/* Configuration structure, server, command and associated prototypes.
* $Id: dirtree.h,v 1.81 2011/05/23 20:35:35 castaglia Exp $
*/
#ifndef PR_DIRTREE_H
#define PR_DIRTREE_H
#include "pool.h"
#include "sets.h"
#include "table.h"
typedef struct config_struc config_rec;
struct conn_struc;
typedef struct server_struc {
struct server_struc *next, *prev;
pool *pool; /* Memory pool for this server */
xaset_t *set; /* Set holding all servers */
/* The label/name for this server configuration. */
const char *ServerName;
/* The address for this server configuration. */
const char *ServerAddress;
/* The fully qualified domain name for this server configuration. */
const char *ServerFQDN;
/* Port number to which to listen. A value of zero disables the server_rec.
*/
unsigned int ServerPort;
/* TCP settings: max segment size, receive/send buffer sizes.
*/
int tcp_mss_len;
/* If the tcp_rcvbuf_override/tcp_sndbuf_override flags are true, then
* the corresponding buffer lengths are to be configured as socket options
* via setsockopt(2).
*/
int tcp_rcvbuf_len;
unsigned char tcp_rcvbuf_override;
int tcp_sndbuf_len;
unsigned char tcp_sndbuf_override;
/* Administrator name */
char *ServerAdmin;
/* Internal address of this server */
pr_netaddr_t *addr;
/* The listener for this server. Note that this listener, and that
* pointed to by ipbind->ib_listener (where ipbind->ib_server points to
* this server_rec) are the same. Ideally, we'd only want one pointer to
* the listener around, and avoid the duplication. To do this would
* require further structural changes.
*/
struct conn_struc *listen;
/* Configuration details */
xaset_t *conf;
int config_type;
/* Internal server ID, automatically assigned */
unsigned int sid;
} server_rec;
typedef struct cmd_struc {
pool *pool;
server_rec *server;
config_rec *config;
pool *tmp_pool; /* Temporary pool which only exists
* while the cmd's handler is running
*/
int argc;
char *arg; /* entire argument (excluding command) */
char **argv;
char *group; /* Command grouping */
int class; /* The command class */
int stash_index; /* hack to speed up symbol hashing in modules.c */
pr_table_t *notes; /* Private data for passing/retaining between handlers */
int cmd_id; /* Index into commands list, for faster comparisons */
} cmd_rec;
struct config_struc {
struct config_struc *next,*prev;
int config_type;
unsigned int config_id;
pool *pool; /* memory pool for this object */
xaset_t *set; /* The set we are stored in */
char *name;
int argc;
void **argv;
long flags; /* Flags */
server_rec *server; /* Server this config element is attached to */
config_rec *parent; /* Our parent configuration record */
xaset_t *subset; /* Sub-configuration */
};
#define CONF_ROOT (1 << 0) /* No conf record */
#define CONF_DIR (1 << 1) /* Per-Dir configuration */
#define CONF_ANON (1 << 2) /* Anon. FTP configuration */
#define CONF_LIMIT (1 << 3) /* Limits commands available */
#define CONF_VIRTUAL (1 << 4) /* Virtual host */
#define CONF_DYNDIR (1 << 5) /* .ftpaccess file */
#define CONF_GLOBAL (1 << 6) /* "Global" context (applies to main server and ALL virtualhosts */
#define CONF_CLASS (1 << 7) /* Class context */
#define CONF_NAMED (1 << 8) /* Named virtual host */
#define CONF_USERDATA (1 << 14) /* Runtime user data */
#define CONF_PARAM (1 << 15) /* config/args pair */
/* config_rec flags */
#define CF_MERGEDOWN (1 << 0) /* Merge option down */
#define CF_MERGEDOWN_MULTI (1 << 1) /* Merge down, allowing multiple instances */
#define CF_DYNAMIC (1 << 2) /* Dynamically added entry */
#define CF_DEFER (1 << 3) /* Defer hashing until authentication */
#define CF_SILENT (1 << 4) /* Do not print a config dump when merging */
#define CF_MULTI (1 << 5) /* Allow multiple instances, but do not merge down */
/* Operation codes for dir_* funcs */
#define OP_HIDE 1 /* Op for hiding dirs/files */
#define OP_COMMAND 2 /* Command operation */
/* For the Order directive */
#define ORDER_ALLOWDENY 0
#define ORDER_DENYALLOW 1
/* The following macro determines the "highest" level available for
* configuration directives. If a current dir_config is available, it's
* subset is used, otherwise anon config or main server
*/
#define CURRENT_CONF (session.dir_config ? session.dir_config->subset \
: (session.anon_config ? session.anon_config->subset \
: main_server->conf))
#define TOPLEVEL_CONF (session.anon_config ? session.anon_config->subset : main_server->conf)
extern server_rec *main_server;
extern int tcpBackLog;
extern int SocketBindTight;
extern char ServerType;
extern int ServerMaxInstances;
extern int ServerUseReverseDNS;
/* These macros are used to help handle configuration in modules */
#define CONF_ERROR(x, s) return PR_ERROR_MSG((x),NULL,pstrcat((x)->tmp_pool, \
(x)->argv[0],": ",(s),NULL));
#define CHECK_ARGS(x, n) if((x)->argc-1 < n) \
CONF_ERROR(x,"missing arguments")
#define CHECK_VARARGS(x, n, m) if((x)->argc - 1 < n || (x)->argc - 1 > m) \
CONF_ERROR(x,"missing arguments")
#define CHECK_HASARGS(x, n) ((x)->argc - 1) == n
#define CHECK_CONF(x,p) if (!check_context((x),(p))) \
CONF_ERROR((x), \
pstrcat((x)->tmp_pool,"directive not allowed in ", \
get_context_name((x)), \
" context",NULL))
#define CHECK_CMD_ARGS(x, n) \
if ((x)->argc != (n)) { \
pr_response_add_err(R_501, _("Invalid number of arguments")); \
return PR_ERROR((x)); \
}
#define CHECK_CMD_MIN_ARGS(x, n) \
if ((x)->argc < (n)) { \
pr_response_add_err(R_501, _("Invalid number of arguments")); \
return PR_ERROR((x)); \
}
/* Prototypes */
/* KLUDGE: disable umask() for not G_WRITE operations. Config/
* Directory walking code will be completely redesigned in 1.3,
* this is only necessary for perfomance reasons in 1.1/1.2
*/
void kludge_disable_umask(void);
void kludge_enable_umask(void);
int pr_define_add(const char *, int);
unsigned char pr_define_exists(const char *);
void init_config(void);
int fixup_servers(xaset_t *list);
int parse_config_path(pool *, const char *);
config_rec *add_config_set(xaset_t **, const char *);
config_rec *add_config(server_rec *, const char *);
config_rec *add_config_param(const char *, int, ...);
config_rec *add_config_param_str(const char *, int, ...);
config_rec *add_config_param_set(xaset_t **, const char *, int, ...);
config_rec *pr_conf_add_server_config_param_str(server_rec *, const char *,
int, ...);
config_rec *find_config_next(config_rec *, config_rec *, int,
const char *, int);
config_rec *find_config(xaset_t *, int, const char *, int);
void find_config_set_top(config_rec *);
int remove_config(xaset_t *, const char *, int);
/* Returns the assigned ID for the provided directive name, or zero
* if no ID mapping was found.
*/
unsigned int pr_config_get_id(const char *name);
/* Returns the buffer size to use for data transfers, regardless of IO
* direction.
*/
int pr_config_get_xfer_bufsz(void);
/* Returns the buffer size to use for data transfers given an IO direction
* (either PR_NETIO_IO_RD for reads/uploads, or PR_NETIO_IO_WR for
* writes/downloads).
*/
int pr_config_get_xfer_bufsz2(int);
/* Returns the buffer size to use for data transfers given an IO direction
* (either PR_NETIO_IO_RD for reads/uploads, or PR_NETIO_IO_WR for
* writes/downloads). This takes into account any server-specific buffer
* sizes, e.g. as configured via SocketOptions.
*/
int pr_config_get_server_xfer_bufsz(int);
/* Assigns a unique ID for the given configuration directive. The
* mapping of directive to ID is stored in a lookup table, so that
* searching of the config database by directive name can be done using
* ID comparisons rather than string comparisons.
*
* Returns the ID assigned for the given directive, or zero if there was an
* error.
*/
unsigned int pr_config_set_id(const char *name);
void *get_param_ptr(xaset_t *, const char *, int);
void *get_param_ptr_next(const char *, int);
xaset_t *get_dir_ctxt(pool *, char *);
config_rec *dir_match_path(pool *, char *);
void build_dyn_config(pool *, const char *, struct stat *, unsigned char);
unsigned char dir_hide_file(const char *);
int dir_check_full(pool *, cmd_rec *, const char *, const char *, int *);
int dir_check_limits(cmd_rec *, config_rec *, const char *, int);
int dir_check(pool *, cmd_rec *, const char *, const char *, int *);
int dir_check_canon(pool *, cmd_rec *, const char *, const char *, int *);
int is_dotdir(const char *);
int login_check_limits(xaset_t *, int, int, int *);
char *path_subst_uservar(pool *, char **);
void resolve_anonymous_dirs(xaset_t *);
void resolve_deferred_dirs(server_rec *);
void fixup_dirs(server_rec *, int);
unsigned char check_context(cmd_rec *, int);
char *get_context_name(cmd_rec *);
int get_boolean(cmd_rec *, int);
char *get_full_cmd(cmd_rec *);
void pr_config_dump(void (*)(const char *, ...), xaset_t *, char *);
#ifdef PR_USE_DEVEL
void pr_dirs_dump(void (*)(const char *, ...), xaset_t *, char *);
#endif /* PR_USE_DEVEL */
#endif /* PR_DIRTREE_H */
y~or5J ={Eeu磝Qk ᯘG{?+]ן?wM3X^歌>{7پK>on\jy R g/=fOroNVv~Y+ NGuÝHWyw[eQʨSb> >}Gmx[o[<{Ϯ_qF vM IENDB`
