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/*
* support/include/nfslib.h
*
* General support functions for NFS user-space programs.
*
* Copyright (C) 1995 Olaf Kirch <okir@monad.swb.de>
*/
#ifndef NFSLIB_H
#define NFSLIB_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <stdbool.h>
#include <paths.h>
#include <rpcsvc/nfs_prot.h>
#include <nfs/nfs.h>
#include "xlog.h"
#ifndef _PATH_EXPORTS
#define _PATH_EXPORTS "/etc/exports"
#endif
#ifndef _PATH_EXPORTS_D
#define _PATH_EXPORTS_D "/etc/exports.d"
#endif
#ifndef _EXT_EXPORT
#define _EXT_EXPORT ".exports"
#endif
#ifndef _PATH_IDMAPDCONF
#define _PATH_IDMAPDCONF "/etc/idmapd.conf"
#endif
#ifndef _PATH_PROC_EXPORTS
#define _PATH_PROC_EXPORTS "/proc/fs/nfs/exports"
#define _PATH_PROC_EXPORTS_ALT "/proc/fs/nfsd/exports"
#endif
#define ETAB "etab"
#define ETABTMP "etab.tmp"
#define ETABLCK ".etab.lock"
#define RMTAB "rmtab"
#define RMTABTMP "rmtab.tmp"
#define RMTABLCK ".rmtab.lock"
struct state_paths {
char *statefn;
char *tmpfn;
char *lockfn;
};
/* Maximum number of security flavors on an export: */
#define SECFLAVOR_COUNT 8
struct sec_entry {
struct flav_info *flav;
int flags;
};
#define XPRTSECMODE_COUNT 3
struct xprtsec_info {
const char *name;
int number;
};
struct xprtsec_entry {
const struct xprtsec_info *info;
int flags;
};
/*
* Data related to a single exports entry as returned by getexportent.
* FIXME: export options should probably be parsed at a later time to
* allow overrides when using exportfs.
*/
struct exportent {
char * e_hostname;
char e_path[NFS_MAXPATHLEN+1];
int e_flags;
int e_anonuid;
int e_anongid;
int * e_squids;
int e_nsquids;
int * e_sqgids;
int e_nsqgids;
unsigned int e_fsid;
char * e_mountpoint;
int e_fslocmethod;
char * e_fslocdata;
char * e_uuid;
struct sec_entry e_secinfo[SECFLAVOR_COUNT+1];
struct xprtsec_entry e_xprtsec[XPRTSECMODE_COUNT + 1];
unsigned int e_ttl;
char * e_realpath;
int e_reexport;
};
struct rmtabent {
char r_client[NFSCLNT_IDMAX+1];
char r_path[NFS_MAXPATHLEN+1];
int r_count;
};
/*
* configuration file parsing
*/
void setexportent(char *fname, char *type);
struct exportent * getexportent(int,int);
void secinfo_show(FILE *fp, struct exportent *ep);
void xprtsecinfo_show(FILE *fp, struct exportent *ep);
void putexportent(struct exportent *xep);
void endexportent(void);
struct exportent * mkexportent(char *hname, char *path, char *opts);
void dupexportent(struct exportent *dst,
struct exportent *src);
int updateexportent(struct exportent *eep, char *options);
extern struct state_paths rmtab;
int setrmtabent(char *type);
struct rmtabent * getrmtabent(int log, long *pos);
void putrmtabent(struct rmtabent *xep, long *pos);
void endrmtabent(void);
void rewindrmtabent(void);
FILE * fsetrmtabent(char *fname, char *type);
struct rmtabent * fgetrmtabent(FILE *fp, int log, long *pos);
void fputrmtabent(FILE *fp, struct rmtabent *xep, long *pos);
void fendrmtabent(FILE *fp);
void frewindrmtabent(FILE *fp);
_Bool state_setup_basedir(const char *, const char *);
int setup_state_path_names(const char *, const char *, const char *, const char *, struct state_paths *);
void free_state_path_names(struct state_paths *);
/* mydaemon */
void daemon_init(bool fg);
void daemon_ready(void);
/*
* wildmat borrowed from INN
*/
int wildmat(char *text, char *pattern);
int qword_get(char **bpp, char *dest, int bufsize);
int qword_get_int(char **bpp, int *anint);
void cache_flush(void);
void qword_add(char **bpp, int *lp, char *str);
void qword_addhex(char **bpp, int *lp, char *buf, int blen);
void qword_addint(char **bpp, int *lp, int n);
void qword_adduint(char **bpp, int *lp, unsigned int n);
void qword_addeol(char **bpp, int *lp);
int qword_get_uint(char **bpp, unsigned int *anint);
void closeall(int min);
int svctcp_socket (u_long __number, int __reuse);
int svcudp_socket (u_long __number);
int svcsock_nonblock (int __sock);
/* Misc shared code prototypes */
size_t strlcat(char *, const char *, size_t);
size_t strlcpy(char *, const char *, size_t);
ssize_t atomicio(ssize_t (*f) (int, void*, size_t),
int, void *, size_t);
#ifdef HAVE_LIBTIRPC_SET_DEBUG
void libtirpc_set_debug(char *name, int level, int use_stderr);
#endif
#define UNUSED(x) UNUSED_ ## x __attribute__((unused))
/*
* Some versions of freeaddrinfo(3) do not tolerate being
* passed a NULL pointer.
*/
static inline void nfs_freeaddrinfo(struct addrinfo *ai)
{
if (ai) {
freeaddrinfo(ai);
}
}
#endif /* NFSLIB_H */
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