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/* $OpenBSD: ypldap.h,v 1.23 2022/10/13 04:55:33 jmatthew Exp $ */
/*
* Copyright (c) 2008 Pierre-Yves Ritschard <pyr@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <imsg.h>
#include <tls.h>
#define YPLDAP_USER "_ypldap"
#define YPLDAP_CONF_FILE "/etc/ypldap.conf"
#define DEFAULT_INTERVAL 600
#define LINE_WIDTH 1024
#define FILTER_WIDTH 128
#define ATTR_WIDTH 32
#define MAX_SERVERS_DNS 8
enum imsg_type {
IMSG_NONE,
IMSG_CONF_START,
IMSG_CONF_IDM,
IMSG_CONF_END,
IMSG_START_UPDATE,
IMSG_END_UPDATE,
IMSG_TRASH_UPDATE,
IMSG_PW_ENTRY,
IMSG_GRP_ENTRY,
IMSG_HOST_DNS
};
struct ypldap_addr {
TAILQ_ENTRY(ypldap_addr) next;
struct sockaddr_storage ss;
};
TAILQ_HEAD(ypldap_addr_list, ypldap_addr);
enum privsep_procid {
PROC_MAIN,
PROC_CLIENT
};
extern enum privsep_procid ypldap_process;
static const char * const log_procnames[] = {
"parent",
"ldapclient"
};
struct userent {
RB_ENTRY(userent) ue_name_node;
RB_ENTRY(userent) ue_uid_node;
uid_t ue_uid;
char *ue_line;
char *ue_netid_line;
gid_t ue_gid;
};
struct groupent {
RB_ENTRY(groupent) ge_name_node;
RB_ENTRY(groupent) ge_gid_node;
gid_t ge_gid;
char *ge_line;
};
enum client_state {
STATE_NONE,
STATE_DNS_INPROGRESS,
STATE_DNS_TEMPFAIL,
STATE_DNS_DONE,
STATE_LDAP_FAIL,
STATE_LDAP_DONE
};
/*
* beck, djm, dlg: pay attention to the struct name
*/
struct idm {
TAILQ_ENTRY(idm) idm_entry;
u_int32_t idm_id;
char idm_name[HOST_NAME_MAX+1];
#define F_SSL 0x00100000
#define F_CONFIGURING 0x00200000
#define F_NEEDAUTH 0x00400000
#define F_STARTTLS 0x00800000
#define F_FIXED_ATTR(n) (1<<n)
#define F_LIST(n) (1<<n)
enum client_state idm_state;
u_int32_t idm_flags; /* lower 20 reserved */
u_int32_t idm_list;
struct ypldap_addr_list idm_addr;
in_port_t idm_port;
int idm_bindext;
char idm_binddn[LINE_WIDTH];
char idm_bindextid[LINE_WIDTH];
char idm_bindcred[LINE_WIDTH];
char idm_basedn[LINE_WIDTH];
char idm_groupdn[LINE_WIDTH];
#define FILTER_USER 1
#define FILTER_GROUP 0
char idm_filters[2][FILTER_WIDTH];
#define ATTR_NAME 0
#define ATTR_PASSWD 1
#define ATTR_UID 2
#define ATTR_GID 3
#define ATTR_CLASS 4
#define ATTR_CHANGE 5
#define ATTR_EXPIRE 6
#define ATTR_GECOS 7
#define ATTR_DIR 8
#define ATTR_SHELL 9
#define ATTR_GR_NAME 10
#define ATTR_GR_PASSWD 11
#define ATTR_GR_GID 12
#define ATTR_GR_MEMBERS 13
#define ATTR_MAX 10
#define ATTR_GR_MIN 10
#define ATTR_GR_MAX 14
char idm_attrs[14][ATTR_WIDTH];
struct env *idm_env;
struct tls_config *idm_tls_config;
};
struct idm_req {
union {
uid_t ik_uid;
uid_t ik_gid;
} ir_key;
char ir_line[LINE_WIDTH];
};
struct imsgev {
struct imsgbuf ibuf;
void (*handler)(int, short, void *);
struct event ev;
void *data;
short events;
};
enum bind_mode {
BIND_MODE_PORTMAP,
BIND_MODE_LOCAL
};
struct env {
#define YPLDAP_OPT_VERBOSE 0x01
#define YPLDAP_OPT_NOACTION 0x02
u_int8_t sc_opts;
#define YPMAP_PASSWD_BYNAME 0x00000001
#define YPMAP_PASSWD_BYUID 0x00000002
#define YPMAP_MASTER_PASSWD_BYNAME 0x00000004
#define YPMAP_MASTER_PASSWD_BYUID 0x00000008
#define YPMAP_GROUP_BYNAME 0x00000010
#define YPMAP_GROUP_BYGID 0x00000020
#define YPMAP_NETID_BYNAME 0x00000040
u_int32_t sc_flags;
u_int32_t sc_maxid;
char sc_domainname[HOST_NAME_MAX+1];
enum bind_mode sc_bind_mode;
struct timeval sc_conf_tv;
struct event sc_conf_ev;
char *sc_cafile;
TAILQ_HEAD(idm_list, idm) sc_idms;
struct imsgev *sc_iev;
struct imsgev *sc_iev_dns;
RB_HEAD(user_name_tree,userent) *sc_user_names;
RB_HEAD(user_uid_tree,userent) sc_user_uids;
RB_HEAD(group_name_tree,groupent)*sc_group_names;
RB_HEAD(group_gid_tree,groupent) sc_group_gids;
struct user_name_tree *sc_user_names_t;
struct group_name_tree *sc_group_names_t;
size_t sc_user_line_len;
size_t sc_group_line_len;
char *sc_user_lines;
char *sc_group_lines;
struct yp_data *sc_yp;
int update_trashed;
};
/* log.c */
void log_init(int);
void log_warn(const char *, ...);
void log_warnx(const char *, ...);
void log_info(const char *, ...);
void log_debug(const char *, ...);
void logit(int, const char *, ...);
void vlog(int, const char *, va_list);
__dead void fatal(const char *);
__dead void fatalx(const char *);
/* parse.y */
int parse_config(struct env *, const char *, int);
int cmdline_symset(char *);
/* ldapclient.c */
pid_t ldapclient(int []);
/* ypldap.c */
void purge_config(struct env *);
void imsg_event_add(struct imsgev *);
int imsg_compose_event(struct imsgev *, u_int16_t, u_int32_t,
pid_t, int, void *, u_int16_t);
/* entries.c */
void flatten_entries(struct env *);
int userent_name_cmp(struct userent *, struct userent *);
int userent_uid_cmp(struct userent *, struct userent *);
int groupent_name_cmp(struct groupent *, struct groupent *);
int groupent_gid_cmp(struct groupent *, struct groupent *);
RB_PROTOTYPE( user_name_tree, userent, ue_name_node, userent_name_cmp);
RB_PROTOTYPE( user_uid_tree, userent, ue_uid_node, userent_uid_cmp);
RB_PROTOTYPE( group_name_tree, groupent, ge_name_node, groupent_name_cmp);
RB_PROTOTYPE( group_gid_tree, groupent, ge_gid_node, groupent_gid_cmp);
/* yp.c */
void yp_init(struct env *);
void yp_enable_events(void);
/* ypldap_dns.c */
pid_t ypldap_dns(int[2], struct passwd *);
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