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/*
Copyright (c) 2004 The Regents of the University of Michigan.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RPC_GSSD_H_
#define _RPC_GSSD_H_
#include <sys/types.h>
#include <sys/queue.h>
#include <gssapi/gssapi.h>
#include <event.h>
#include <stdbool.h>
#include <pthread.h>
#ifndef GSSD_PIPEFS_DIR
#define GSSD_PIPEFS_DIR "/var/lib/nfs/rpc_pipefs"
#endif
#define DNOTIFY_SIGNAL (SIGRTMIN + 3)
#define GSSD_DEFAULT_CRED_DIR "/tmp"
#define GSSD_USER_CRED_DIR "/run/user/%U"
#define GSSD_DEFAULT_CRED_PREFIX "krb5cc"
#define GSSD_DEFAULT_MACHINE_CRED_SUFFIX "machine"
#define GSSD_DEFAULT_KEYTAB_FILE "/etc/krb5.keytab"
#define GSSD_SERVICE_NAME "nfs"
#define RPC_CHAN_BUF_SIZE 32768
/* timeouts are in seconds */
#define MIN_UPCALL_TIMEOUT 5
#define DEF_UPCALL_TIMEOUT 30
#define MAX_UPCALL_TIMEOUT 600
/*
* The gss mechanisms that we can handle
*/
enum {AUTHTYPE_KRB5, AUTHTYPE_LIPKEY};
extern char *keytabfile;
extern char **ccachesearch;
extern int use_memcache;
extern int root_uses_machine_creds;
extern unsigned int context_timeout;
extern unsigned int rpc_timeout;
extern char *preferred_realm;
struct clnt_info {
TAILQ_ENTRY(clnt_info) list;
int refcount;
int wd;
bool scanned;
char *name;
char *relpath;
char *servicename;
char *servername;
int prog;
int vers;
char *protocol;
int krb5_fd;
struct event *krb5_ev;
int gssd_fd;
struct event *gssd_ev;
struct sockaddr_storage addr;
};
struct clnt_upcall_info {
struct clnt_info *clp;
uid_t uid;
int fd;
char *srchost;
char *target;
char *service;
};
struct upcall_thread_info {
TAILQ_ENTRY(upcall_thread_info) list;
pthread_t tid;
struct timespec timeout;
uid_t uid;
int fd;
unsigned short flags;
#define UPCALL_THREAD_CANCELED 0x0001
#define UPCALL_THREAD_WARNED 0x0002
};
void handle_krb5_upcall(struct clnt_info *clp);
void handle_gssd_upcall(struct clnt_info *clp);
void free_upcall_info(struct clnt_upcall_info *info);
void gssd_free_client(struct clnt_info *clp);
int do_error_downcall(int k5_fd, uid_t uid, int err);
#endif /* _RPC_GSSD_H_ */
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