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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef __CRLE_H
#define __CRLE_H
#include <sys/types.h>
#include <gelf.h>
#include <sgs.h>
#include <rtc.h>
#include <machdep.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Hash table support routines.
*/
typedef struct hash_obj Hash_obj;
typedef struct hash_ent Hash_ent;
typedef struct hash_tbl Hash_tbl;
typedef enum {
HASH_STR,
HASH_INT
} Hash_type;
/*
* Each unique object (identified by dev/inode pair) is maintained as a hash
* object. This descriptor identifies the object (file or directory), whether
* it has an alternate, or represents a non-existent object.
*/
struct hash_obj {
Half o_flags; /* object identification */
Hash_tbl *o_tbl; /* its dev/inode table */
char *o_alter; /* any alternate path */
Word o_calter; /* and its conf offset */
char *o_path; /* the objects real path */
Lword o_info; /* information for cache */
/* consistency checks */
};
/*
* Each element of a hash table is maintained as a hash entry. Each element
* points to a unique hash object. Many elements can point to the same hash
* object (as is the case with linked files). Elements on the string table
* hash lists identify their directory id, either the directory itself, or the
* files that belong to the directory. These directory and file entries are
* what will be converted into object descriptors in the final cache file.
*/
struct hash_ent {
Hash_ent *e_next; /* next hash item */
Word e_hash; /* hash value (or inode no.) */
Addr e_key; /* name (or inode no.) */
int e_off; /* offset of file in dirname */
Half e_id; /* directory identifier */
Half e_flags; /* entry specific flags */
Word e_cnt; /* no. of files in directory */
Hash_ent *e_dir; /* files directory */
Hash_ent *e_path; /* files full path entry */
Hash_obj *e_obj; /* unique object */
Rtc_obj *e_cobj; /* final configuration object */
};
/*
* Each hash table is maintained as a hash table descriptor. Each dev has a
* hash table of inodes, and all directory and file entries are also maintained
* on the string table hash table.
*/
struct hash_tbl {
ulong_t t_ident; /* dev no. for inode cache */
int t_size; /* no. of buckets */
Hash_type t_type; /* HASH_INT or HASH_STR */
Hash_ent **t_entry; /* entries */
};
#define HASH_FND_ENT 0x01 /* search for existing hash entry */
#define HASH_ADD_ENT 0x02 /* add hash entry */
/*
* Environment variable support.
*/
typedef struct {
const char *e_str; /* complete environment string */
size_t e_varsz; /* variable size, ie. the LD_XXX part */
size_t e_totsz; /* total string size */
uint_t e_flags;
} Env_desc;
/*
* Filter/filtee association support. The filtees are a list of Hash_ent's.
*/
typedef struct {
Hash_ent *f_fent; /* filter */
const char *f_str; /* filtee string and its associated */
size_t f_strsz; /* size */
APlist *f_filtee; /* filtees */
} Flt_desc;
/*
* Global data for final configuration files construction.
*/
typedef struct crle_desc {
char *c_name; /* calling program */
char *c_tempname; /* temporary file, file descriptor */
int c_tempfd; /* mmapped address and size */
Addr c_tempaddr;
size_t c_tempsize;
Addr c_tempheadaddr; /* Ptr to Rtc_head within c_tempaddr */
char *c_confil; /* configuration file */
char *c_objdir; /* current object directory for */
/* dldump(3dl) */
char *c_audit; /* audit library name */
uint_t c_flags; /* state flags for crle processing */
int c_dlflags; /* current dldump(3dl) flags */
int c_strbkts; /* internal hash table initialization */
int c_inobkts; /* parameters */
uint_t c_dirnum; /* no. of directories processed */
uint_t c_filenum; /* no. of files processed */
uint_t c_hashstrnum; /* no. of hashed strings to create */
Hash_tbl *c_strtbl; /* string table and size */
size_t c_strsize;
APlist *c_inotbls; /* list of inode tables */
const char *c_app; /* specific application */
char *c_edlibpath; /* ELF default library path */
char *c_eslibpath; /* ELF secure library path */
APlist *c_env; /* environment variables */
uint_t c_envnum; /* and associated number */
APlist *c_flt; /* filter/filtee associations */
uint_t c_fltrnum; /* and associated filter number */
uint_t c_fltenum; /* and associated filtee number */
} Crle_desc;
#define CRLE_CREAT 0x0001 /* config file creation required */
#define CRLE_ALTER 0x0002 /* alternative entries required */
#define CRLE_DUMP 0x0004 /* alternative create by dldump(3dl) */
#define CRLE_ADDID 0x0008 /* Add Rtc_id to head of new files */
#define CRLE_VERBOSE 0x0010 /* verbose mode */
/* 0x20 was previously used for a.out support */
#define CRLE_EXISTS 0x0040 /* config file already exists */
#define CRLE_DIFFDEV 0x0080 /* config file and temporary exist on */
/* different filesystems */
#define CRLE_CONFDEF 0x0100 /* configuration file is default */
#define CRLE_UPDATE 0x0200 /* update existing configuration file */
#define CRLE_RPLENV 0x0400 /* replaceable environment variable */
#define CRLE_PRMENV 0x0800 /* permanent environment variable */
#define CRLE_EDLIB 0x1000 /* default elf search path supplied */
#define CRLE_ESLIB 0x2000 /* default elf secure path supplied */
#define AL_CNT_CRLE 10
/*
* Return type code returned by inspectconfig()
*/
typedef enum {
INSCFG_RET_OK = 0, /* Config file is OK */
INSCFG_RET_FAIL = 1, /* Config file has a fatal problem */
INSCFG_RET_NEED64 = 2, /* 64-bit config seen by 32-bit crle */
} INSCFG_RET;
/*
* Local functions.
*/
extern int addlib(Crle_desc *, char **, const char *);
extern int addenv(Crle_desc *, const char *, uint_t);
extern int depend(Crle_desc *, const char *, Half, GElf_Ehdr *);
extern int dlflags(Crle_desc *, const char *);
extern int dump(Crle_desc *);
extern int genconfig(Crle_desc *);
extern Hash_ent *get_hash(Hash_tbl *, Addr, Half, int);
extern int inspect(Crle_desc *, const char *, Half);
extern Hash_tbl *make_hash(int, Hash_type, ulong_t);
extern INSCFG_RET inspectconfig(Crle_desc *, int);
extern int updateconfig(Crle_desc *);
#ifdef __cplusplus
}
#endif
#endif /* __CRLE_H */
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