Delete bundled copy of NSS and replace with README.

nss/lib/softoken/lgglue.c

Index: nss/lib/softoken/lgglue.c
diff --git a/nss/lib/softoken/lgglue.c b/nss/lib/softoken/lgglue.c
deleted file mode 100644
index 155991bcf8cd42fe4a4712ad760f8c331b5af765..0000000000000000000000000000000000000000
--- a/nss/lib/softoken/lgglue.c
+++ /dev/null
@@ -1,458 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-/* 
- *  The following code handles the storage of PKCS 11 modules used by the
- * NSS. This file is written to abstract away how the modules are
- * stored so we can deside that later.
- */
-#include "sftkdb.h"
-#include "sftkdbti.h"
-#include "sdb.h"
-#include "prsystem.h"
-#include "prprf.h"
-#include "prenv.h"
-#include "lgglue.h"
-#include "secerr.h"
-#include "softoken.h"
-
-static LGOpenFunc legacy_glue_open = NULL;
-static LGReadSecmodFunc legacy_glue_readSecmod = NULL;
-static LGReleaseSecmodFunc legacy_glue_releaseSecmod = NULL;
-static LGDeleteSecmodFunc legacy_glue_deleteSecmod = NULL;
-static LGAddSecmodFunc legacy_glue_addSecmod = NULL;
-static LGShutdownFunc legacy_glue_shutdown = NULL;
-
-#ifndef NSS_STATIC
-/*
- * The following 3 functions duplicate the work done by bl_LoadLibrary.
- * We should make bl_LoadLibrary a global and replace the call to
- * sftkdb_LoadLibrary(const char *libname) with it.
- */
-#ifdef XP_UNIX
-#include <unistd.h>
-#define LG_MAX_LINKS 20
-static char *
-sftkdb_resolvePath(const char *orig)
-{
-    int count = 0;
-    int len =0;
-    int ret = -1;
-    char *resolved = NULL;
-    char *source = NULL;
-
-    len = 1025; /* MAX PATH +1*/
-    if (strlen(orig)+1 > len) {
-	/* PATH TOO LONG */
-	return NULL;
-    }
-    resolved = PORT_Alloc(len);
-    if (!resolved) {
-	return NULL;
-    }
-    source = PORT_Alloc(len);
-    if (!source) {
-	goto loser;
-    }
-    PORT_Strcpy(source, orig);
-    /* Walk down all the links */
-    while ( count++ < LG_MAX_LINKS) {
-	char *tmp;
-	/* swap our previous sorce out with resolved */
-	/* read it */
-	ret = readlink(source, resolved, len-1);
-	if (ret  < 0) {
-	    break;
- 	}
-	resolved[ret] = 0;
-	tmp = source; source = resolved; resolved = tmp;
-    }
-    if (count > 1) {
-	ret = 0;
-    }
-loser:
-    if (resolved) {
-	PORT_Free(resolved);
-    }
-    if (ret < 0) {
-	if (source) {
-	    PORT_Free(source);
-	    source = NULL;
-	}
-    }
-    return source;
-}
-
-#endif
-
-static PRLibrary *
-sftkdb_LoadFromPath(const char *path, const char *libname)
-{
-    char *c;
-    int pathLen, nameLen, fullPathLen;
-    char *fullPathName = NULL;
-    PRLibSpec libSpec;
-    PRLibrary *lib = NULL;
-
-
-    /* strip of our parent's library name */ 
-    c = strrchr(path, PR_GetDirectorySeparator());
-    if (!c) {
-	return NULL; /* invalid path */
-    }
-    pathLen = (c-path)+1;
-    nameLen = strlen(libname);
-    fullPathLen = pathLen + nameLen +1;
-    fullPathName = (char *)PORT_Alloc(fullPathLen);
-    if (fullPathName == NULL) {
-	return NULL; /* memory allocation error */
-    }
-    PORT_Memcpy(fullPathName, path, pathLen);
-    PORT_Memcpy(fullPathName+pathLen, libname, nameLen);
-    fullPathName[fullPathLen-1] = 0;
-
-    libSpec.type = PR_LibSpec_Pathname;
-    libSpec.value.pathname = fullPathName;
-    lib = PR_LoadLibraryWithFlags(libSpec, PR_LD_NOW | PR_LD_LOCAL);
-    PORT_Free(fullPathName);
-    return lib;
-}
-
-
-static PRLibrary *
-sftkdb_LoadLibrary(const char *libname)
-{
-    PRLibrary *lib = NULL;
-    PRFuncPtr fn_addr;
-    char *parentLibPath = NULL;
-
-    fn_addr  = (PRFuncPtr) &sftkdb_LoadLibrary;
-    parentLibPath = PR_GetLibraryFilePathname(SOFTOKEN_LIB_NAME, fn_addr);
-
-    if (!parentLibPath) {
-	goto done;
-    }
-
-    lib = sftkdb_LoadFromPath(parentLibPath, libname);
-#ifdef XP_UNIX
-    /* handle symbolic link case */
-    if (!lib) {
-	char *trueParentLibPath = sftkdb_resolvePath(parentLibPath);
-	if (!trueParentLibPath) {
-	    goto done;
-	}
-    	lib = sftkdb_LoadFromPath(trueParentLibPath, libname);
-	PORT_Free(trueParentLibPath);
-    }
-#endif
-
-done:
-    if (parentLibPath) {
-	PORT_Free(parentLibPath);
-    }
-
-    /* still couldn't load it, try the generic path */
-    if (!lib) {
-	PRLibSpec libSpec;
-	libSpec.type = PR_LibSpec_Pathname;
-	libSpec.value.pathname = libname;
-	lib = PR_LoadLibraryWithFlags(libSpec, PR_LD_NOW | PR_LD_LOCAL);
-    }
-
-    return lib;
-}
-#endif  /* STATIC LIBRARIES */
-
-/*
- * stub files for legacy db's to be able to encrypt and decrypt
- * various keys and attributes.
- */
-static SECStatus
-sftkdb_encrypt_stub(PLArenaPool *arena, SDB *sdb, SECItem *plainText,
-		    SECItem **cipherText)
-{
-    SFTKDBHandle *handle = sdb->app_private;
-    SECStatus rv;
-
-    if (handle == NULL) {
-	return SECFailure;
-    }
-
-    /* if we aren't the key handle, try the other handle */
-    if (handle->type != SFTK_KEYDB_TYPE) {
-	handle = handle->peerDB;
-    }
-
-    /* not a key handle */
-    if (handle == NULL || handle->passwordLock == NULL) {
-	return SECFailure;
-    }
-
-    PZ_Lock(handle->passwordLock);
-    if (handle->passwordKey.data == NULL) {
-	PZ_Unlock(handle->passwordLock);
-	/* PORT_SetError */
-	return SECFailure;
-    }
-
-    rv = sftkdb_EncryptAttribute(arena, 
-	handle->newKey?handle->newKey:&handle->passwordKey, 
-	plainText, cipherText);
-    PZ_Unlock(handle->passwordLock);
-
-    return rv;
-}
-
-/*
- * stub files for legacy db's to be able to encrypt and decrypt
- * various keys and attributes.
- */
-static SECStatus
-sftkdb_decrypt_stub(SDB *sdb, SECItem *cipherText, SECItem **plainText) 
-{
-    SFTKDBHandle *handle = sdb->app_private;
-    SECStatus rv;
-    SECItem *oldKey = NULL;
-
-    if (handle == NULL) {
-	return SECFailure;
-    }
-
-    /* if we aren't th handle, try the other handle */
-    oldKey = handle->oldKey;
-    if (handle->type != SFTK_KEYDB_TYPE) {
-	handle = handle->peerDB;
-    }
-
-    /* not a key handle */
-    if (handle == NULL || handle->passwordLock == NULL) {
-	return SECFailure;
-    }
-
-    PZ_Lock(handle->passwordLock);
-    if (handle->passwordKey.data == NULL) {
-	PZ_Unlock(handle->passwordLock);
-	/* PORT_SetError */
-	return SECFailure;
-    }
-    rv = sftkdb_DecryptAttribute( oldKey ? oldKey : &handle->passwordKey,
-		cipherText, plainText);
-    PZ_Unlock(handle->passwordLock);
-
-    return rv;
-}
-
-static const char *LEGACY_LIB_NAME = 
-	SHLIB_PREFIX"nssdbm"SHLIB_VERSION"."SHLIB_SUFFIX;
-/*
- * 2 bools to tell us if we've check the legacy library successfully or
- * not. Initialize on startup to false by the C BSS segment;
- */
-static PRBool legacy_glue_libCheckFailed;    /* set if we failed the check */
-static PRBool legacy_glue_libCheckSucceeded; /* set if we passed the check */
-static PRLibrary *legacy_glue_lib = NULL;
-static SECStatus 
-sftkdbLoad_Legacy(PRBool isFIPS)
-{
-    PRLibrary *lib = NULL;
-    LGSetCryptFunc setCryptFunction = NULL;
-
-    if (legacy_glue_lib) {
-	/* this check is necessary because it's possible we loaded the
-	 * legacydb to read secmod.db, which told us whether we were in
-	 * FIPS mode or not. */
-	if (isFIPS && !legacy_glue_libCheckSucceeded) {
-	    if (legacy_glue_libCheckFailed || 
-		!BLAPI_SHVerify(LEGACY_LIB_NAME,(PRFuncPtr)legacy_glue_open)) {
-    	    	legacy_glue_libCheckFailed = PR_TRUE;
-		/* don't clobber legacy glue to avoid race. just let it
-		 * get cleared in shutdown */
-		return SECFailure;
-	    }
-    	    legacy_glue_libCheckSucceeded = PR_TRUE;
-	} 
-	return SECSuccess;
-    }
-
-#ifdef NSS_STATIC
-#ifdef NSS_DISABLE_DBM
-    return SECFailure;
-#else
-    lib = (PRLibrary *) 0x8;
-
-    legacy_glue_open = legacy_Open;
-    legacy_glue_readSecmod = legacy_ReadSecmodDB;
-    legacy_glue_releaseSecmod = legacy_ReleaseSecmodDBData;
-    legacy_glue_deleteSecmod = legacy_DeleteSecmodDB;
-    legacy_glue_addSecmod = legacy_AddSecmodDB;
-    legacy_glue_shutdown = legacy_Shutdown;
-    setCryptFunction = legacy_SetCryptFunctions;
-#endif
-#else
-    lib = sftkdb_LoadLibrary(LEGACY_LIB_NAME);
-    if (lib == NULL) {
-	return SECFailure;
-    }
-    
-    legacy_glue_open = (LGOpenFunc)PR_FindFunctionSymbol(lib, "legacy_Open");
-    legacy_glue_readSecmod = (LGReadSecmodFunc) PR_FindFunctionSymbol(lib,
-						 "legacy_ReadSecmodDB");
-    legacy_glue_releaseSecmod = (LGReleaseSecmodFunc) PR_FindFunctionSymbol(lib,
-					 	 "legacy_ReleaseSecmodDBData");
-    legacy_glue_deleteSecmod = (LGDeleteSecmodFunc) PR_FindFunctionSymbol(lib,
-						 "legacy_DeleteSecmodDB");
-    legacy_glue_addSecmod = (LGAddSecmodFunc)PR_FindFunctionSymbol(lib, 
-						 "legacy_AddSecmodDB");
-    legacy_glue_shutdown = (LGShutdownFunc) PR_FindFunctionSymbol(lib, 
-						"legacy_Shutdown");
-    setCryptFunction = (LGSetCryptFunc) PR_FindFunctionSymbol(lib, 
-						"legacy_SetCryptFunctions");
-
-    if (!legacy_glue_open || !legacy_glue_readSecmod || 
-	    !legacy_glue_releaseSecmod || !legacy_glue_deleteSecmod || 
-	    !legacy_glue_addSecmod || !setCryptFunction) {
-	PR_UnloadLibrary(lib);
-	return SECFailure;
-    }
-#endif  /* NSS_STATIC */
-
-    /* verify the loaded library if we are in FIPS mode */
-    if (isFIPS) {
-	if (!BLAPI_SHVerify(LEGACY_LIB_NAME,(PRFuncPtr)legacy_glue_open)) {
-#ifndef NSS_STATIC
-	    PR_UnloadLibrary(lib);
-#endif
-	    return SECFailure;
-	}
-    	legacy_glue_libCheckSucceeded = PR_TRUE;
-    } 
-
-    setCryptFunction(sftkdb_encrypt_stub,sftkdb_decrypt_stub);
-    legacy_glue_lib = lib;
-    return SECSuccess;
-}
-
-CK_RV
-sftkdbCall_open(const char *dir, const char *certPrefix, const char *keyPrefix, 
-		int certVersion, int keyVersion, int flags, PRBool isFIPS,
-		SDB **certDB, SDB **keyDB)
-{
-    SECStatus rv;
-
-    rv = sftkdbLoad_Legacy(isFIPS);
-    if (rv != SECSuccess) {
-	return CKR_GENERAL_ERROR;
-    }
-    if (!legacy_glue_open) {
-	PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
-	return SECFailure;
-    }
-    return (*legacy_glue_open)(dir, certPrefix, keyPrefix, 
-				certVersion, keyVersion,
-				flags, certDB, keyDB);
-}
-
-char **
-sftkdbCall_ReadSecmodDB(const char *appName, const char *filename, 
-			const char *dbname, char *params, PRBool rw)
-{
-    SECStatus rv;
-
-    rv = sftkdbLoad_Legacy(PR_FALSE);
-    if (rv != SECSuccess) {
-	return NULL;
-    }
-    if (!legacy_glue_readSecmod) {
-	PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
-	return NULL;
-    }
-    return (*legacy_glue_readSecmod)(appName, filename, dbname, params, rw);
-}
-
-SECStatus
-sftkdbCall_ReleaseSecmodDBData(const char *appName, 
-			const char *filename, const char *dbname, 
-			char **moduleSpecList, PRBool rw)
-{
-    SECStatus rv;
-
-    rv = sftkdbLoad_Legacy(PR_FALSE);
-    if (rv != SECSuccess) {
-	return rv;
-    }
-    if (!legacy_glue_releaseSecmod) {
-	PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
-	return SECFailure;
-    }
-    return (*legacy_glue_releaseSecmod)(appName, filename, dbname, 
-					  moduleSpecList, rw);
-}
-
-SECStatus
-sftkdbCall_DeleteSecmodDB(const char *appName, 
-		      const char *filename, const char *dbname, 
-		      char *args, PRBool rw)
-{
-    SECStatus rv;
-
-    rv = sftkdbLoad_Legacy(PR_FALSE);
-    if (rv != SECSuccess) {
-	return rv;
-    }
-    if (!legacy_glue_deleteSecmod) {
-	PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
-	return SECFailure;
-    }
-    return (*legacy_glue_deleteSecmod)(appName, filename, dbname, args, rw);
-}
-
-SECStatus
-sftkdbCall_AddSecmodDB(const char *appName, 
-		   const char *filename, const char *dbname, 
-		   char *module, PRBool rw)
-{
-    SECStatus rv;
-
-    rv = sftkdbLoad_Legacy(PR_FALSE);
-    if (rv != SECSuccess) {
-	return rv;
-    }
-    if (!legacy_glue_addSecmod) {
-	PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
-	return SECFailure;
-    }
-    return (*legacy_glue_addSecmod)(appName, filename, dbname, module, rw);
-}
-
-CK_RV
-sftkdbCall_Shutdown(void)
-{
-    CK_RV crv = CKR_OK;
-    char *disableUnload = NULL;
-    if (!legacy_glue_lib) {
-	return CKR_OK;
-    }
-    if (legacy_glue_shutdown) {
-#ifdef NO_FORK_CHECK
-	PRBool parentForkedAfterC_Initialize = PR_FALSE;
-#endif
-	crv = (*legacy_glue_shutdown)(parentForkedAfterC_Initialize);
-    }
-#ifndef NSS_STATIC
-    disableUnload = PR_GetEnvSecure("NSS_DISABLE_UNLOAD");
-    if (!disableUnload) {
-        PR_UnloadLibrary(legacy_glue_lib);
-    }
-#endif
-    legacy_glue_lib = NULL;
-    legacy_glue_open = NULL;
-    legacy_glue_readSecmod = NULL;
-    legacy_glue_releaseSecmod = NULL;
-    legacy_glue_deleteSecmod = NULL;
-    legacy_glue_addSecmod = NULL;
-    legacy_glue_libCheckFailed    = PR_FALSE;
-    legacy_glue_libCheckSucceeded = PR_FALSE;
-    return crv;
-}
-    
-