int showVerifyPackage(QVA_t qva, rpmts ts, Header h)
{
static int scareMem = 0;
rpmVerifyAttrs omitMask = ((qva->qva_flags & VERIFY_ATTRS) ^ VERIFY_ATTRS);
int spew = (qva->qva_mode != 'v'); /* XXX no output w verify(...) probe. */
int ec = 0;
int i;
rpmfi fi = rpmfiNew(ts, h, RPMTAG_BASENAMES, scareMem);
uint32_t fc = rpmfiFC(fi);
{
/* Verify header digest/signature. */
if (qva->qva_flags & (VERIFY_DIGEST | VERIFY_SIGNATURE))
{
const char * horigin = headerGetOrigin(h);
const char * msg = NULL;
size_t uhlen = 0;
void * uh = headerUnload(h, &uhlen);
int lvl = headerCheck(rpmtsDig(ts), uh, uhlen, &msg) == RPMRC_FAIL
? RPMLOG_ERR : RPMLOG_DEBUG;
rpmlog(lvl, "%s: %s\n",
(horigin ? horigin : "verify"), (msg ? msg : ""));
rpmtsCleanDig(ts);
uh = _free(uh);
msg = _free(msg);
}
/* Verify file digests. */
if (fc > 0 && (qva->qva_flags & VERIFY_FILES))
#if defined(_OPENMP)
#pragma omp parallel for private(i) reduction(+:ec)
#endif
for (i = 0; i < (int)fc; i++) {
int fflags = fi->fflags[i];
rpmvf vf;
int rc;
/* If not querying %config, skip config files. */
if ((qva->qva_fflags & RPMFILE_CONFIG) && (fflags & RPMFILE_CONFIG))
continue;
/* If not querying %doc, skip doc files. */
if ((qva->qva_fflags & RPMFILE_DOC) && (fflags & RPMFILE_DOC))
continue;
/* If not verifying %ghost, skip ghost files. */
/* XXX the broken!!! logic disables %ghost queries always. */
if (!(qva->qva_fflags & RPMFILE_GHOST) && (fflags & RPMFILE_GHOST))
continue;
/* Gather per-file data into a carrier. */
vf = rpmvfNew(ts, fi, i, omitMask);
/* Verify per-file metadata. */
rc = rpmvfVerify(vf, spew);
if (rc)
ec += rc;
(void) rpmvfFree(vf);
vf = NULL;
}
/* Run verify/sanity scripts (if any). */
if (qva->qva_flags & VERIFY_SCRIPT)
{
int rc;
if (headerIsEntry(h, RPMTAG_VERIFYSCRIPT) ||
headerIsEntry(h, RPMTAG_SANITYCHECK))
{
FD_t fdo = fdDup(STDOUT_FILENO);
rc = rpmfiSetHeader(fi, h);
if ((rc = rpmVerifyScript(qva, ts, fi, fdo)) != 0)
ec += rc;
if (fdo != NULL)
rc = Fclose(fdo);
rc = rpmfiSetHeader(fi, NULL);
}
}
/* Verify dependency assertions. */
if (qva->qva_flags & VERIFY_DEPS)
{
int save_noise = _rpmds_unspecified_epoch_noise;
int rc;
/*@-mods@*/
if (rpmIsVerbose())
_rpmds_unspecified_epoch_noise = 1;
if ((rc = verifyDependencies(qva, ts, h)) != 0)
ec += rc;
_rpmds_unspecified_epoch_noise = save_noise;
/*@=mods@*/
}
}
fi = rpmfiFree(fi);
return ec;
}
/*@-mods@*/
rpmRC rpmReadPackageFile(rpmts ts, FD_t fd, const char * fn, Header * hdrp)
{
HE_t he = (HE_t) memset(alloca(sizeof(*he)), 0, sizeof(*he));
HE_t she = (HE_t) memset(alloca(sizeof(*she)), 0, sizeof(*she));
pgpDig dig = rpmtsDig(ts);
char buf[8*BUFSIZ];
ssize_t count;
Header sigh = NULL;
rpmtsOpX opx;
rpmop op = NULL;
size_t nb;
unsigned ix;
Header h = NULL;
const char * msg = NULL;
rpmVSFlags vsflags;
rpmRC rc = RPMRC_FAIL; /* assume failure */
rpmop opsave = (rpmop) memset(alloca(sizeof(*opsave)), 0, sizeof(*opsave));
int xx;
pgpPkt pp = (pgpPkt) alloca(sizeof(*pp));
if (hdrp) *hdrp = NULL;
assert(dig != NULL);
(void) fdSetDig(fd, dig);
/* Snapshot current I/O counters (cached persistent I/O reuses counters) */
(void) rpmswAdd(opsave, fdstat_op(fd, FDSTAT_READ));
{ const char item[] = "Lead";
msg = NULL;
rc = rpmpkgRead(item, fd, NULL, &msg);
switch (rc) {
default:
rpmlog(RPMLOG_ERR, "%s: %s: %s\n", fn, item, msg);
/*@fallthrough@*/
case RPMRC_NOTFOUND:
msg = _free(msg);
goto exit;
/*@notreached@*/ break;
case RPMRC_OK:
break;
}
msg = _free(msg);
}
{ const char item[] = "Signature";
msg = NULL;
rc = rpmpkgRead(item, fd, &sigh, &msg);
switch (rc) {
default:
rpmlog(RPMLOG_ERR, "%s: %s: %s", fn, item,
(msg && *msg ? msg : _("read failed\n")));
msg = _free(msg);
goto exit;
/*@notreached@*/ break;
case RPMRC_OK:
if (sigh == NULL) {
rpmlog(RPMLOG_ERR, _("%s: No signature available\n"), fn);
rc = RPMRC_FAIL;
goto exit;
}
break;
}
msg = _free(msg);
}
#define _chk(_mask) (she->tag == 0 && !(vsflags & (_mask)))
/*
* Figger the most effective available signature.
* Prefer signatures over digests, then header-only over header+payload.
* DSA will be preferred over RSA if both exist because tested first.
* Note that NEEDPAYLOAD prevents header+payload signatures and digests.
*/
she->tag = (rpmTag)0;
opx = (rpmtsOpX)0;
vsflags = pgpDigVSFlags;
if (_chk(RPMVSF_NOECDSAHEADER) && headerIsEntry(sigh, (rpmTag)RPMSIGTAG_ECDSA)) {
she->tag = (rpmTag)RPMSIGTAG_ECDSA;
} else
if (_chk(RPMVSF_NODSAHEADER) && headerIsEntry(sigh, (rpmTag)RPMSIGTAG_DSA)) {
she->tag = (rpmTag)RPMSIGTAG_DSA;
} else
if (_chk(RPMVSF_NORSAHEADER) && headerIsEntry(sigh, (rpmTag)RPMSIGTAG_RSA)) {
she->tag = (rpmTag)RPMSIGTAG_RSA;
} else
if (_chk(RPMVSF_NOSHA1HEADER) && headerIsEntry(sigh, (rpmTag)RPMSIGTAG_SHA1)) {
she->tag = (rpmTag)RPMSIGTAG_SHA1;
} else
if (_chk(RPMVSF_NOMD5|RPMVSF_NEEDPAYLOAD) &&
headerIsEntry(sigh, (rpmTag)RPMSIGTAG_MD5))
{
she->tag = (rpmTag)RPMSIGTAG_MD5;
fdInitDigest(fd, PGPHASHALGO_MD5, 0);
opx = RPMTS_OP_DIGEST;
}
/* Read the metadata, computing digest(s) on the fly. */
h = NULL;
msg = NULL;
/* XXX stats will include header i/o and setup overhead. */
/* XXX repackaged packages have appended tags, legacy dig/sig check fails */
if (opx > 0) {
op = (rpmop) pgpStatsAccumulator(dig, opx);
(void) rpmswEnter(op, 0);
}
/*@-type@*/ /* XXX arrow access of non-pointer (FDSTAT_t) */
nb = fd->stats->ops[FDSTAT_READ].bytes;
{ const char item[] = "Header";
msg = NULL;
rc = rpmpkgRead(item, fd, &h, &msg);
if (rc != RPMRC_OK) {
rpmlog(RPMLOG_ERR, "%s: %s: %s\n", fn, item, msg);
msg = _free(msg);
goto exit;
}
msg = _free(msg);
}
nb = fd->stats->ops[FDSTAT_READ].bytes - nb;
/*@=type@*/
if (opx > 0 && op != NULL) {
(void) rpmswExit(op, nb);
op = NULL;
}
/* Any digests or signatures to check? */
if (she->tag == 0) {
rc = RPMRC_OK;
goto exit;
}
dig->nbytes = 0;
/* Fish out the autosign pubkey (if present). */
he->tag = RPMTAG_PUBKEYS;
xx = headerGet(h, he, 0);
if (xx && he->p.argv != NULL && he->c > 0)
switch (he->t) {
default:
break;
case RPM_STRING_ARRAY_TYPE:
ix = he->c - 1; /* XXX FIXME: assumes last pubkey */
dig->pub = _free(dig->pub);
dig->publen = 0;
{ rpmiob iob = rpmiobNew(0);
iob = rpmiobAppend(iob, he->p.argv[ix], 0);
xx = pgpArmorUnwrap(iob, (rpmuint8_t **)&dig->pub, &dig->publen);
iob = rpmiobFree(iob);
}
if (xx != PGPARMOR_PUBKEY) {
dig->pub = _free(dig->pub);
dig->publen = 0;
}
break;
}
he->p.ptr = _free(he->p.ptr);
/* Retrieve the tag parameters from the signature header. */
xx = headerGet(sigh, she, 0);
if (she->p.ptr == NULL) {
rc = RPMRC_FAIL;
goto exit;
}
/*@-ownedtrans -noeffect@*/
xx = pgpSetSig(dig, she->tag, she->t, she->p.ptr, she->c);
/*@=ownedtrans =noeffect@*/
switch ((rpmSigTag)she->tag) {
default: /* XXX keep gcc quiet. */
assert(0);
/*@notreached@*/ break;
case RPMSIGTAG_RSA:
/* Parse the parameters from the OpenPGP packets that will be needed. */
xx = pgpPktLen(she->p.ui8p, she->c, pp);
xx = rpmhkpLoadSignature(NULL, dig, pp);
if (dig->signature.version != 3 && dig->signature.version != 4) {
rpmlog(RPMLOG_ERR,
_("skipping package %s with unverifiable V%u signature\n"),
fn, dig->signature.version);
rc = RPMRC_FAIL;
goto exit;
}
xx = hBlobDigest(h, dig, dig->signature.hash_algo, &dig->hrsa);
break;
case RPMSIGTAG_DSA:
/* Parse the parameters from the OpenPGP packets that will be needed. */
xx = pgpPktLen(she->p.ui8p, she->c, pp);
xx = rpmhkpLoadSignature(NULL, dig, pp);
if (dig->signature.version != 3 && dig->signature.version != 4) {
rpmlog(RPMLOG_ERR,
_("skipping package %s with unverifiable V%u signature\n"),
fn, dig->signature.version);
rc = RPMRC_FAIL;
goto exit;
}
xx = hBlobDigest(h, dig, dig->signature.hash_algo, &dig->hdsa);
break;
case RPMSIGTAG_ECDSA:
/* Parse the parameters from the OpenPGP packets that will be needed. */
xx = pgpPktLen(she->p.ui8p, she->c, pp);
xx = rpmhkpLoadSignature(NULL, dig, pp);
if (dig->signature.version != 3 && dig->signature.version != 4) {
rpmlog(RPMLOG_ERR,
_("skipping package %s with unverifiable V%u signature\n"),
fn, dig->signature.version);
rc = RPMRC_FAIL;
goto exit;
}
xx = hBlobDigest(h, dig, dig->signature.hash_algo, &dig->hecdsa);
break;
case RPMSIGTAG_SHA1:
/* XXX dig->hsha? */
xx = hBlobDigest(h, dig, PGPHASHALGO_SHA1, &dig->hdsa);
break;
case RPMSIGTAG_MD5:
/* Legacy signatures need the compressed payload in the digest too. */
op = (rpmop) pgpStatsAccumulator(dig, 10); /* RPMTS_OP_DIGEST */
(void) rpmswEnter(op, 0);
while ((count = Fread(buf, sizeof(buf[0]), sizeof(buf), fd)) > 0)
dig->nbytes += count;
(void) rpmswExit(op, dig->nbytes);
op->count--; /* XXX one too many */
dig->nbytes += nb; /* XXX include size of header blob. */
if (count < 0) {
rpmlog(RPMLOG_ERR, _("%s: Fread failed: %s\n"),
fn, Fstrerror(fd));
rc = RPMRC_FAIL;
goto exit;
}
/* XXX Steal the digest-in-progress from the file handle. */
fdStealDigest(fd, dig);
break;
}
/** @todo Implement disable/enable/warn/error/anal policy. */
buf[0] = '\0';
rc = rpmVerifySignature(dig, buf);
switch (rc) {
case RPMRC_OK: /* Signature is OK. */
rpmlog(RPMLOG_DEBUG, "%s: %s\n", fn, buf);
break;
case RPMRC_NOTTRUSTED: /* Signature is OK, but key is not trusted. */
case RPMRC_NOKEY: /* Public key is unavailable. */
#ifndef DYING
/* XXX Print NOKEY/NOTTRUSTED warning only once. */
{ int lvl = (pgpStashKeyid(dig) ? RPMLOG_DEBUG : RPMLOG_WARNING);
rpmlog(lvl, "%s: %s\n", fn, buf);
} break;
case RPMRC_NOTFOUND: /* Signature is unknown type. */
rpmlog(RPMLOG_WARNING, "%s: %s\n", fn, buf);
break;
#else
case RPMRC_NOTFOUND: /* Signature is unknown type. */
case RPMRC_NOSIG: /* Signature is unavailable. */
#endif
default:
case RPMRC_FAIL: /* Signature does not verify. */
rpmlog(RPMLOG_ERR, "%s: %s\n", fn, buf);
break;
}
exit:
if (rc != RPMRC_FAIL && h != NULL && hdrp != NULL) {
/* Append (and remap) signature tags to the metadata. */
headerMergeLegacySigs(h, sigh);
/* Bump reference count for return. */
*hdrp = headerLink(h);
}
(void)headerFree(h);
h = NULL;
/* Accumulate time reading package header. */
(void) rpmswAdd(rpmtsOp(ts, RPMTS_OP_READHDR),
fdstat_op(fd, FDSTAT_READ));
(void) rpmswSub(rpmtsOp(ts, RPMTS_OP_READHDR),
opsave);
#ifdef NOTYET
/* Return RPMRC_NOSIG for MANDATORY signature verification. */
{ rpmSigTag sigtag = pgpGetSigtag(dig);
switch (sigtag) {
default:
rc = RPMRC_NOSIG;
/*@fallthrough@*/
case RPMSIGTAG_RSA:
case RPMSIGTAG_DSA:
case RPMSIGTAG_ECDSA:
break;
}
}
#endif
rpmtsCleanDig(ts);
(void)headerFree(sigh);
sigh = NULL;
return rc;
}
