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gecko-dev/security/nss/cmd/signtool/sign.c

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19 KiB
C
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/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Netscape security libraries.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1994-2000 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the
* GPL.
*/
#include "signtool.h"
#include "zip.h"
#include "prmem.h"
#include "blapi.h"
#include "sechash.h" /* for HASH_GetHashObject() */
static int create_pk7 (char *dir, char *keyName, int *keyType);
static int jar_find_key_type (CERTCertificate *cert);
static int manifesto (char *dirname, char *install_script, PRBool recurse);
static int manifesto_fn(char *relpath, char *basedir, char *reldir,
char *filename, void *arg);
static int sign_all_arc_fn(char *relpath, char *basedir, char *reldir,
char *filename, void *arg);
static int add_meta (FILE *fp, char *name);
static int SignFile (FILE *outFile, FILE *inFile, CERTCertificate *cert);
static int generate_SF_file (char *manifile, char *who);
static int calculate_MD5_range (FILE *fp, long r1, long r2, JAR_Digest *dig);
static void SignOut (void *arg, const char *buf, unsigned long len);
static char *metafile = NULL;
static int optimize = 0;
static FILE *mf;
static ZIPfile *zipfile=NULL;
/*
* S i g n A r c h i v e
*
* Sign an individual archive tree. A directory
* called META-INF is created underneath this.
*
*/
int
SignArchive(char *tree, char *keyName, char *zip_file, int javascript,
char *meta_file, char *install_script, int _optimize, PRBool recurse)
{
int status;
char tempfn [FNSIZE], fullfn [FNSIZE];
int keyType = rsaKey;
metafile = meta_file;
optimize = _optimize;
if(zip_file) {
zipfile = JzipOpen(zip_file, NULL /*no comment*/);
}
manifesto (tree, install_script, recurse);
if (keyName)
{
status = create_pk7 (tree, keyName, &keyType);
if (status < 0)
{
PR_fprintf(errorFD, "the tree \"%s\" was NOT SUCCESSFULLY SIGNED\n", tree);
errorCount++;
exit (ERRX);
}
}
/* mf to zip */
strcpy (tempfn, "META-INF/manifest.mf");
sprintf (fullfn, "%s/%s", tree, tempfn);
JzipAdd(fullfn, tempfn, zipfile, compression_level);
/* sf to zip */
sprintf (tempfn, "META-INF/%s.sf", base);
sprintf (fullfn, "%s/%s", tree, tempfn);
JzipAdd(fullfn, tempfn, zipfile, compression_level);
/* rsa/dsa to zip */
sprintf (tempfn, "META-INF/%s.%s", base, (keyType==dsaKey ? "dsa" : "rsa"));
sprintf (fullfn, "%s/%s", tree, tempfn);
JzipAdd(fullfn, tempfn, zipfile, compression_level);
JzipClose(zipfile);
if(verbosity >= 0) {
if (javascript) {
PR_fprintf(outputFD,"jarfile \"%s\" signed successfully\n",
zip_file);
} else {
PR_fprintf(outputFD, "tree \"%s\" signed successfully\n", tree);
}
}
return 0;
}
typedef struct {
char *keyName;
int javascript;
char *metafile;
char *install_script;
int optimize;
} SignArcInfo;
/*
* S i g n A l l A r c
*
* Javascript may generate multiple .arc directories, one
* for each jar archive needed. Sign them all.
*
*/
int
SignAllArc(char *jartree, char *keyName, int javascript, char *metafile,
char *install_script, int optimize, PRBool recurse)
{
SignArcInfo info;
info.keyName = keyName;
info.javascript = javascript;
info.metafile = metafile;
info.install_script = install_script;
info.optimize = optimize;
return foreach(jartree, "", sign_all_arc_fn, recurse,
PR_TRUE /*include dirs*/, (void*)&info);
}
static int
sign_all_arc_fn(char *relpath, char *basedir, char *reldir, char *filename,
void *arg)
{
char *zipfile=NULL;
char *arc=NULL, *archive=NULL;
int retval=0;
SignArcInfo *infop = (SignArcInfo*)arg;
/* Make sure there is one and only one ".arc" in the relative path,
* and that it is at the end of the path (don't sign .arcs within .arcs) */
if ( (PL_strcaserstr(relpath, ".arc") == relpath + strlen(relpath) - 4) &&
(PL_strcasestr(relpath, ".arc") == relpath + strlen(relpath) - 4) ) {
if(!infop) {
PR_fprintf(errorFD, "%s: Internal failure\n", PROGRAM_NAME);
errorCount++;
retval = -1;
goto finish;
}
archive = PR_smprintf("%s/%s", basedir, relpath);
zipfile = PL_strdup(archive);
arc = PORT_Strrchr (zipfile, '.');
if (arc == NULL) {
PR_fprintf(errorFD, "%s: Internal failure\n", PROGRAM_NAME);
errorCount++;
retval = -1;
goto finish;
}
PL_strcpy (arc, ".jar");
if(verbosity >= 0) {
PR_fprintf(outputFD, "\nsigning: %s\n", zipfile);
}
retval = SignArchive(archive, infop->keyName, zipfile,
infop->javascript, infop->metafile, infop->install_script,
infop->optimize, PR_TRUE /* recurse */);
}
finish:
if(archive) PR_Free(archive);
if(zipfile) PR_Free(zipfile);
return retval;
}
/*********************************************************************
*
* c r e a t e _ p k 7
*/
static int
create_pk7 (char *dir, char *keyName, int *keyType)
{
int status = 0;
char *file_ext;
CERTCertificate *cert;
CERTCertDBHandle *db;
FILE *in, *out;
char sf_file [FNSIZE];
char pk7_file [FNSIZE];
/* open cert database */
db = CERT_GetDefaultCertDB();
if (db == NULL)
return -1;
/* find cert */
/*cert = CERT_FindCertByNicknameOrEmailAddr(db, keyName);*/
cert = PK11_FindCertFromNickname(keyName, NULL /*wincx*/);
if (cert == NULL)
{
SECU_PrintError
(
PROGRAM_NAME,
"the cert \"%s\" does not exist in the database",
keyName
);
return -1;
}
/* determine the key type, which sets the extension for pkcs7 object */
*keyType = jar_find_key_type (cert);
file_ext = (*keyType == dsaKey) ? "dsa" : "rsa";
sprintf (sf_file, "%s/META-INF/%s.sf", dir, base);
sprintf (pk7_file, "%s/META-INF/%s.%s", dir, base, file_ext);
if ((in = fopen (sf_file, "rb")) == NULL)
{
PR_fprintf(errorFD, "%s: Can't open %s for reading\n", PROGRAM_NAME, sf_file);
errorCount++;
exit (ERRX);
}
if ((out = fopen (pk7_file, "wb")) == NULL)
{
PR_fprintf(errorFD, "%s: Can't open %s for writing\n", PROGRAM_NAME, sf_file);
errorCount++;
exit (ERRX);
}
status = SignFile (out, in, cert);
fclose (in);
fclose (out);
if (status)
{
PR_fprintf(errorFD, "%s: PROBLEM signing data (%s)\n",
PROGRAM_NAME, SECU_ErrorString ((int16) PORT_GetError()));
errorCount++;
return -1;
}
return 0;
}
/*
* j a r _ f i n d _ k e y _ t y p e
*
* Determine the key type for a given cert, which
* should be rsaKey or dsaKey. Any error return 0.
*
*/
static int
jar_find_key_type (CERTCertificate *cert)
{
PK11SlotInfo *slot = NULL;
SECKEYPrivateKey *privk = NULL;
/* determine its type */
PK11_FindObjectForCert (cert, /*wincx*/ NULL, &slot);
if (slot == NULL)
{
PR_fprintf(errorFD, "warning - can't find slot for this cert\n");
warningCount++;
return 0;
}
privk = PK11_FindPrivateKeyFromCert (slot, cert, /*wincx*/ NULL);
if (privk == NULL)
{
PR_fprintf(errorFD, "warning - can't find private key for this cert\n");
warningCount++;
return 0;
}
return privk->keyType;
}
/*
* m a n i f e s t o
*
* Run once for every subdirectory in which a
* manifest is to be created -- usually exactly once.
*
*/
static int
manifesto (char *dirname, char *install_script, PRBool recurse)
{
char metadir [FNSIZE], sfname [FNSIZE];
/* Create the META-INF directory to hold signing info */
if (PR_Access (dirname, PR_ACCESS_READ_OK))
{
PR_fprintf(errorFD, "%s: unable to read your directory: %s\n", PROGRAM_NAME,
dirname);
errorCount++;
perror (dirname);
exit (ERRX);
}
if (PR_Access (dirname, PR_ACCESS_WRITE_OK)) {
PR_fprintf(errorFD, "%s: unable to write to your directory: %s\n",
PROGRAM_NAME, dirname);
errorCount++;
perror(dirname);
exit(ERRX);
}
sprintf (metadir, "%s/META-INF", dirname);
strcpy (sfname, metadir);
PR_MkDir (metadir, 0777);
strcat (metadir, "/");
strcat (metadir, MANIFEST);
if ((mf = fopen (metadir, "wb")) == NULL)
{
perror (MANIFEST);
PR_fprintf(errorFD, "%s: Probably, the directory you are trying to"
" sign has\n", PROGRAM_NAME);
PR_fprintf(errorFD, "%s: permissions problems or may not exist.\n",
PROGRAM_NAME);
errorCount++;
exit (ERRX);
}
if(verbosity >= 0) {
PR_fprintf(outputFD, "Generating %s file..\n", metadir);
}
fprintf(mf, "Manifest-Version: 1.0\n");
fprintf (mf, "Created-By: %s\n", CREATOR);
fprintf (mf, "Comments: %s\n", BREAKAGE);
if (scriptdir)
{
fprintf (mf, "Comments: --\n");
fprintf (mf, "Comments: --\n");
fprintf (mf, "Comments: -- This archive signs Javascripts which may not necessarily\n");
fprintf (mf, "Comments: -- be included in the physical jar file.\n");
fprintf (mf, "Comments: --\n");
fprintf (mf, "Comments: --\n");
}
if (install_script)
fprintf (mf, "Install-Script: %s\n", install_script);
if (metafile)
add_meta (mf, "+");
/* Loop through all files & subdirectories */
foreach (dirname, "", manifesto_fn, recurse, PR_FALSE /*include dirs */,
(void*)NULL);
fclose (mf);
strcat (sfname, "/");
strcat (sfname, base);
strcat (sfname, ".sf");
if(verbosity >= 0) {
PR_fprintf(outputFD, "Generating %s.sf file..\n", base);
}
generate_SF_file (metadir, sfname);
return 0;
}
/*
* m a n i f e s t o _ f n
*
* Called by pointer from manifesto(), once for
* each file within the directory.
*
*/
static int manifesto_fn
(char *relpath, char *basedir, char *reldir, char *filename, void *arg)
{
int use_js;
JAR_Digest dig;
char fullname [FNSIZE];
if(verbosity >= 0) {
PR_fprintf(outputFD, "--> %s\n", relpath);
}
/* extension matching */
if(extensionsGiven) {
char *ext;
ext = PL_strrchr(relpath, '.');
if(!ext) {
return 0;
} else {
if(!PL_HashTableLookup(extensions, ext)) {
return 0;
}
}
}
sprintf (fullname, "%s/%s", basedir, relpath);
fprintf (mf, "\n");
use_js = 0;
if (scriptdir && !PORT_Strcmp (scriptdir, reldir))
use_js++;
/* sign non-.js files inside .arc directories
using the javascript magic */
if ( (PL_strcaserstr(filename, ".js") != filename + strlen(filename) - 3)
&& (PL_strcaserstr(reldir, ".arc") == reldir + strlen(filename)-4))
use_js++;
if (use_js)
{
fprintf (mf, "Name: %s\n", filename);
fprintf (mf, "Magic: javascript\n");
if (optimize == 0)
fprintf (mf, "javascript.id: %s\n", filename);
if (metafile)
add_meta (mf, filename);
}
else
{
fprintf (mf, "Name: %s\n", relpath);
if (metafile)
add_meta (mf, relpath);
}
JAR_digest_file (fullname, &dig);
if (optimize == 0)
{
fprintf (mf, "Digest-Algorithms: MD5 SHA1\n");
fprintf (mf, "MD5-Digest: %s\n", BTOA_DataToAscii (dig.md5, MD5_LENGTH));
}
fprintf (mf, "SHA1-Digest: %s\n", BTOA_DataToAscii (dig.sha1, SHA1_LENGTH));
if(!use_js) {
JzipAdd(fullname, relpath, zipfile, compression_level);
}
return 0;
}
/*
* a d d _ m e t a
*
* Parse the metainfo file, and add any details
* necessary to the manifest file. In most cases you
* should be using the -i option (ie, for SmartUpdate).
*
*/
static int add_meta (FILE *fp, char *name)
{
FILE *met;
char buf [BUFSIZ];
int place;
char *pattern, *meta;
int num = 0;
if ((met = fopen (metafile, "r")) != NULL)
{
while (fgets (buf, BUFSIZ, met))
{
char *s;
for (s = buf; *s && *s != '\n' && *s != '\r'; s++);
*s = 0;
if (*buf == 0)
continue;
pattern = buf;
/* skip to whitespace */
for (s = buf; *s && *s != ' ' && *s != '\t'; s++);
/* terminate pattern */
if (*s == ' ' || *s == '\t') *s++ = 0;
/* eat through whitespace */
while (*s == ' ' || *s == '\t') s++;
meta = s;
/* this will eventually be regexp matching */
place = 0;
if (!PORT_Strcmp (pattern, name))
place = 1;
if (place)
{
num++;
if(verbosity >= 0) {
PR_fprintf(outputFD, "[%s] %s\n", name, meta);
}
fprintf (fp, "%s\n", meta);
}
}
fclose (met);
}
else
{
PR_fprintf(errorFD, "%s: can't open metafile: %s\n", PROGRAM_NAME, metafile);
errorCount++;
exit (ERRX);
}
return num;
}
/**********************************************************************
*
* S i g n F i l e
*/
static int
SignFile (FILE *outFile, FILE *inFile, CERTCertificate *cert)
{
int nb;
char ibuf[4096], digestdata[32];
const SECHashObject *hashObj;
void *hashcx;
unsigned int len;
SECItem digest;
SEC_PKCS7ContentInfo *cinfo;
SECStatus rv;
if (outFile == NULL || inFile == NULL || cert == NULL)
return -1;
/* XXX probably want to extend interface to allow other hash algorithms */
hashObj = HASH_GetHashObject(HASH_AlgSHA1);
hashcx = (* hashObj->create)();
if (hashcx == NULL)
return -1;
(* hashObj->begin)(hashcx);
for (;;)
{
if (feof(inFile)) break;
nb = fread(ibuf, 1, sizeof(ibuf), inFile);
if (nb == 0)
{
if (ferror(inFile))
{
PORT_SetError(SEC_ERROR_IO);
(* hashObj->destroy)(hashcx, PR_TRUE);
return -1;
}
/* eof */
break;
}
(* hashObj->update)(hashcx, (unsigned char *) ibuf, nb);
}
(* hashObj->end)(hashcx, (unsigned char *) digestdata, &len, 32);
(* hashObj->destroy)(hashcx, PR_TRUE);
digest.data = (unsigned char *) digestdata;
digest.len = len;
cinfo = SEC_PKCS7CreateSignedData
(cert, certUsageObjectSigner, NULL,
SEC_OID_SHA1, &digest, NULL, NULL);
if (cinfo == NULL)
return -1;
rv = SEC_PKCS7IncludeCertChain (cinfo, NULL);
if (rv != SECSuccess)
{
SEC_PKCS7DestroyContentInfo (cinfo);
return -1;
}
if (no_time == 0)
{
rv = SEC_PKCS7AddSigningTime (cinfo);
if (rv != SECSuccess)
{
/* don't check error */
}
}
if(password) {
rv = SEC_PKCS7Encode(cinfo, SignOut, outFile, NULL,
(SECKEYGetPasswordKey) password_hardcode, NULL);
} else {
rv = SEC_PKCS7Encode(cinfo, SignOut, outFile, NULL, NULL,
NULL);
}
SEC_PKCS7DestroyContentInfo (cinfo);
if (rv != SECSuccess)
return -1;
return 0;
}
/*
* g e n e r a t e _ S F _ f i l e
*
* From the supplied manifest file, calculates
* digests on the various sections, creating a .SF
* file in the process.
*
*/
static int generate_SF_file (char *manifile, char *who)
{
FILE *sf;
FILE *mf;
long r1, r2, r3;
char whofile [FNSIZE];
char *buf, *name;
JAR_Digest dig;
int line = 0;
strcpy (whofile, who);
if ((mf = fopen (manifile, "rb")) == NULL)
{
perror (manifile);
exit (ERRX);
}
if ((sf = fopen (whofile, "wb")) == NULL)
{
perror (who);
exit (ERRX);
}
buf = (char *) PORT_ZAlloc (BUFSIZ);
if (buf)
name = (char *) PORT_ZAlloc (BUFSIZ);
if (buf == NULL || name == NULL)
out_of_memory();
fprintf (sf, "Signature-Version: 1.0\n");
fprintf (sf, "Created-By: %s\n", CREATOR);
fprintf (sf, "Comments: %s\n", BREAKAGE);
if (fgets (buf, BUFSIZ, mf) == NULL)
{
PR_fprintf(errorFD, "%s: empty manifest file!\n", PROGRAM_NAME);
errorCount++;
exit (ERRX);
}
if (strncmp (buf, "Manifest-Version:", 17))
{
PR_fprintf(errorFD, "%s: not a manifest file!\n", PROGRAM_NAME);
errorCount++;
exit (ERRX);
}
fseek (mf, 0L, SEEK_SET);
/* Process blocks of headers, and calculate their hashen */
while (1)
{
/* Beginning range */
r1 = ftell (mf);
if (fgets (name, BUFSIZ, mf) == NULL)
break;
line++;
if (r1 != 0 && strncmp (name, "Name:", 5))
{
PR_fprintf(errorFD, "warning: unexpected input in manifest file \"%s\" at line %d:\n", manifile, line);
PR_fprintf(errorFD, "%s\n", name);
warningCount++;
}
while (fgets (buf, BUFSIZ, mf))
{
if (*buf == 0 || *buf == '\n' || *buf == '\r')
break;
line++;
/* Ending range for hashing */
r2 = ftell (mf);
}
r3 = ftell (mf);
if (r1)
{
fprintf (sf, "\n");
fprintf (sf, "%s", name);
}
calculate_MD5_range (mf, r1, r2, &dig);
if (optimize == 0)
{
fprintf (sf, "Digest-Algorithms: MD5 SHA1\n");
fprintf (sf, "MD5-Digest: %s\n",
BTOA_DataToAscii (dig.md5, MD5_LENGTH));
}
fprintf (sf, "SHA1-Digest: %s\n",
BTOA_DataToAscii (dig.sha1, SHA1_LENGTH));
/* restore normalcy after changing offset position */
fseek (mf, r3, SEEK_SET);
}
PORT_Free (buf);
PORT_Free (name);
fclose (sf);
fclose (mf);
return 0;
}
/*
* c a l c u l a t e _ M D 5 _ r a n g e
*
* Calculate the MD5 digest on a range of bytes in
* the specified fopen'd file. Returns base64.
*
*/
static int
calculate_MD5_range (FILE *fp, long r1, long r2, JAR_Digest *dig)
{
int num;
int range;
unsigned char *buf;
MD5Context *md5 = 0;
SHA1Context *sha1 = 0;
unsigned int sha1_length, md5_length;
range = r2 - r1;
/* position to the beginning of range */
fseek (fp, r1, SEEK_SET);
buf = (unsigned char *) PORT_ZAlloc (range);
if (buf == NULL)
out_of_memory();
if ((num = fread (buf, 1, range, fp)) != range)
{
PR_fprintf(errorFD, "%s: expected %d bytes, got %d\n", PROGRAM_NAME,
range, num);
errorCount++;
exit (ERRX);
}
md5 = MD5_NewContext();
sha1 = SHA1_NewContext();
if (md5 == NULL || sha1 == NULL)
{
PR_fprintf(errorFD, "%s: can't generate digest context\n", PROGRAM_NAME);
errorCount++;
exit (ERRX);
}
MD5_Begin (md5);
SHA1_Begin (sha1);
MD5_Update (md5, buf, range);
SHA1_Update (sha1, buf, range);
MD5_End (md5, dig->md5, &md5_length, MD5_LENGTH);
SHA1_End (sha1, dig->sha1, &sha1_length, SHA1_LENGTH);
MD5_DestroyContext (md5, PR_TRUE);
SHA1_DestroyContext (sha1, PR_TRUE);
PORT_Free (buf);
return 0;
}
static void SignOut (void *arg, const char *buf, unsigned long len)
{
fwrite (buf, len, 1, (FILE *) arg);
}
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