rpm  4.5
Defines | Functions | Variables
lib/package.c File Reference
#include "system.h"
#include <netinet/in.h>
#include <rpmio_internal.h>
#include <rpmlib.h>
#include "rpmts.h"
#include "rpmevr.h"
#include "misc.h"
#include "rpmlead.h"
#include "header_internal.h"
#include "signature.h"
#include "debug.h"
Include dependency graph for package.c:

Go to the source code of this file.

Defines

#define alloca_strdup(_s)   strcpy(alloca(strlen(_s)+1), (_s))
#define hdrchkTags(_ntags)   ((_ntags) & 0xffff0000)
 Sanity check on no.
#define hdrchkType(_type)   ((_type) < RPM_MIN_TYPE || (_type) > RPM_MAX_TYPE)
 Sanity check on type values.
#define hdrchkData(_nbytes)   ((_nbytes) & 0xff000000)
 Sanity check on data size and/or offset and/or count.
#define hdrchkAlign(_type, _off)   ((_off) & (typeAlign[_type]-1))
 Sanity check on data alignment for data type.
#define hdrchkRange(_dl, _off)   ((_off) < 0 || (_off) > (_dl))
 Sanity check on range of data offset.
#define _chk(_mask)   (sigtag == 0 && !(vsflags & (_mask)))

Functions

static int dncmp (const void *a, const void *b)
static void compressFilelist (Header h)
 Convert absolute path tag to (dirname,basename,dirindex) tags.
static void rpm3to4 (Header h)
void headerMergeLegacySigs (Header h, const Header sigh)
 Translate and merge legacy signature tags into header.
Header headerRegenSigHeader (const Header h, int noArchiveSize)
 Regenerate signature header.
static int rpmtsStashKeyid (rpmts ts)
 Remember current key id.
int headerVerifyInfo (int il, int dl, const void *pev, void *iv, int negate)
 Perform simple sanity and range checks on header tag(s).
rpmRC headerCheck (rpmts ts, const void *uh, size_t uc, const char **msg)
 Check header consistency, performing headerGetEntry() the hard way.
rpmRC rpmReadHeader (rpmts ts, FD_t fd, Header *hdrp, const char **msg)
 Return checked and loaded header.
rpmRC rpmReadPackageFile (rpmts ts, FD_t fd, const char *fn, Header *hdrp)
 Return package header from file handle, verifying digests/signatures.

Variables

static int _print_pkts = 0
static unsigned int nkeyids_max = 256
static unsigned int nkeyids = 0
static unsigned int nextkeyid = 0
static unsigned int * keyids
static unsigned char header_magic [8]
static int typeAlign [16]
 Alignment needs (and sizeof scalars types) for internal rpm data types.

Detailed Description

Definition in file package.c.


Define Documentation

#define _chk (   _mask)    (sigtag == 0 && !(vsflags & (_mask)))

Referenced by rpmReadPackageFile().

#define alloca_strdup (   _s)    strcpy(alloca(strlen(_s)+1), (_s))

Definition at line 27 of file package.c.

#define hdrchkAlign (   _type,
  _off 
)    ((_off) & (typeAlign[_type]-1))

Sanity check on data alignment for data type.

Definition at line 96 of file package.c.

Referenced by headerVerifyInfo().

#define hdrchkData (   _nbytes)    ((_nbytes) & 0xff000000)

Sanity check on data size and/or offset and/or count.

This check imposes a limit of 16 MB, more than enough.

Definition at line 91 of file package.c.

Referenced by headerMergeLegacySigs(), headerVerifyInfo(), and rpmReadHeader().

#define hdrchkRange (   _dl,
  _off 
)    ((_off) < 0 || (_off) > (_dl))

Sanity check on range of data offset.

Definition at line 101 of file package.c.

Referenced by headerVerifyInfo().

#define hdrchkTags (   _ntags)    ((_ntags) & 0xffff0000)

Sanity check on no.

of tags. This check imposes a limit of 65K tags, more than enough.

Definition at line 80 of file package.c.

Referenced by rpmReadHeader().

#define hdrchkType (   _type)    ((_type) < RPM_MIN_TYPE || (_type) > RPM_MAX_TYPE)

Sanity check on type values.

Definition at line 85 of file package.c.

Referenced by headerMergeLegacySigs(), and headerVerifyInfo().


Function Documentation

static void compressFilelist ( Header  h) [static]

Convert absolute path tag to (dirname,basename,dirindex) tags.

Parameters:
hheader

Definition at line 337 of file package.c.

References alloca(), dncmp(), headerAddEntry(), headerFreeData(), headerGetEntryMinMemory(), headerIsEntry(), headerRemoveEntry(), RPM_INT32_TYPE, and RPM_STRING_ARRAY_TYPE.

Referenced by rpm3to4().

static int dncmp ( const void *  a,
const void *  b 
) [static]

Definition at line 323 of file package.c.

Referenced by compressFilelist().

rpmRC headerCheck ( rpmts  ts,
const void *  uh,
size_t  uc,
const char **  msg 
)

Check header consistency, performing headerGetEntry() the hard way.

Sanity checks on the header are performed while looking for a header-only digest or signature to verify the blob. If found, the digest or signature is verified.

Parameters:
tstransaction set
uhunloaded header blob
ucno. of bytes in blob (or 0 to disable)
Return values:
*msgsignature verification msg
Returns:
RPMRC_OK/RPMRC_NOTFOUND/RPMRC_FAIL

Definition at line 691 of file package.c.

References _, _free(), _print_pkts, alloca(), entryInfo_s::count, pgpDigParams_s::hash_algo, pgpDig_s::hdrmd5ctx, pgpDig_s::hdrsha1ctx, header_magic, headerVerifyInfo(), indexEntry_s::info, pgpDig_s::nbytes, entryInfo_s::offset, PGPHASHALGO_SHA1, pgpPrtPkts(), REGION_TAG_COUNT, RPM_BIN_TYPE, RPM_STRING_TYPE, RPMDIGEST_NONE, rpmDigestInit(), rpmDigestUpdate(), rpmIsDebug, RPMMESS_ERROR, rpmMessage, RPMRC_FAIL, RPMRC_NOTFOUND, RPMRC_OK, rpmswEnter(), rpmswExit(), RPMTAG_HEADERIMMUTABLE, RPMTS_OP_DIGEST, rpmtsCleanDig(), rpmtsDig(), rpmtsOp(), rpmtsSetSig(), rpmtsVSFlags(), rpmVerifySignature(), RPMVSF_NODSAHEADER, RPMVSF_NORSAHEADER, RPMVSF_NOSHA1HEADER, pgpDig_s::signature, snprintf(), entryInfo_s::tag, entryInfo_s::type, pgpDigParams_s::version, xmalloc(), and xstrdup().

Referenced by rpmpsmStage(), rpmReadHeader(), rpmts_HdrCheck(), rpmtsInitIterator(), and rpmtsRebuildDB().

int headerVerifyInfo ( int  il,
int  dl,
const void *  pev,
void *  iv,
int  negate 
)

Perform simple sanity and range checks on header tag(s).

Parameters:
ilno. of tags in header
dlno. of bytes in header data.
pev1st element in tag array, big-endian
ivfailing (or last) tag element, host-endian
negatenegative offset expected?
Returns:
-1 on success, otherwise failing tag element index

Definition at line 647 of file package.c.

References entryInfo_s::count, hdrchkAlign, hdrchkData, hdrchkRange, hdrchkType, entryInfo_s::offset, entryInfo_s::tag, and entryInfo_s::type.

Referenced by headerCheck(), and rpmReadSignature().

static void rpm3to4 ( Header  h) [static]
rpmRC rpmReadHeader ( rpmts  ts,
FD_t  fd,
Header hdrp,
const char **  msg 
)

Return checked and loaded header.

Parameters:
tstransaction set
fdfile handle
Return values:
hdrpaddress of header (or NULL)
*msgverification error message (or NULL)
Returns:
RPMRC_OK on success

Definition at line 1016 of file package.c.

References _, _free(), block(), errno, fdGetOPath(), FDSTAT_READ, Fileno(), headerToken_s::flags, hdrchkData, hdrchkTags, header_magic, headerCheck(), HEADERFLAG_ALLOCATED, headerFree(), headerGetStatbuf(), headerLink(), headerLoad(), headerSetEndOff(), headerSetOrigin(), headerSetStartOff(), Realpath(), RPMRC_FAIL, RPMRC_OK, snprintf(), _FD_s::stats, timedRead(), urlPath(), xmalloc(), and xstrdup().

Referenced by rpmReadPackageFile().

rpmRC rpmReadPackageFile ( rpmts  ts,
FD_t  fd,
const char *  fn,
Header hdrp 
)

Return package header from file handle, verifying digests/signatures.

Parameters:
tstransaction set
fdfile handle
fnfile name
Return values:
hdrpaddress of header (or NULL)
Returns:
RPMRC_OK on success
Todo:
Implement disable/enable/warn/error/anal policy.

Definition at line 1138 of file package.c.

References _, _chk, _free(), _print_pkts, alloca(), rpmop_s::count, _FD_s::digests, fdInitDigest(), fdstat_op(), FDSTAT_READ, Fileno(), Fread(), Fstrerror(), pgpDigParams_s::hash_algo, _FDDIGEST_s::hashalgo, _FDDIGEST_s::hashctx, pgpDig_s::hdrmd5ctx, pgpDig_s::hdrsha1ctx, header_magic, headerFree(), headerFreeData(), headerGetEntry(), headerIsEntry(), headerLink(), headerMergeLegacySigs(), rpmlead::major, pgpDig_s::md5ctx, pgpDig_s::nbytes, _FD_s::ndigests, PGPHASHALGO_MD5, PGPHASHALGO_RIPEMD160, PGPHASHALGO_SHA1, PGPHASHALGO_SHA256, PGPHASHALGO_SHA384, PGPHASHALGO_SHA512, pgpPrtPkts(), readLead(), rpm3to4(), RPMDIGEST_NONE, rpmDigestInit(), rpmDigestUpdate(), RPMERR_FREAD, RPMERR_NEWPACKAGE, RPMERR_SIGGEN, rpmError, rpmFreeSignature(), rpmIsDebug, RPMMESS_DEBUG, RPMMESS_ERROR, RPMMESS_WARNING, rpmMessage, RPMRC_FAIL, RPMRC_NOKEY, RPMRC_NOTFOUND, RPMRC_NOTTRUSTED, RPMRC_OK, rpmReadHeader(), rpmReadSignature(), RPMSIGTAG_DSA, RPMSIGTAG_GPG, RPMSIGTAG_MD5, RPMSIGTAG_PGP, RPMSIGTAG_PGP5, RPMSIGTAG_RSA, RPMSIGTAG_SHA1, rpmswAdd(), rpmswEnter(), rpmswExit(), rpmswSub(), RPMTAG_HEADERIMMUTABLE, RPMTS_OP_DIGEST, RPMTS_OP_READHDR, RPMTS_OP_SIGNATURE, rpmtsCleanDig(), rpmtsDig(), rpmtsOp(), rpmtsSetSig(), rpmtsStashKeyid(), rpmtsVSFlags(), rpmVerifySignature(), RPMVSF_NEEDPAYLOAD, RPMVSF_NODSA, RPMVSF_NODSAHEADER, RPMVSF_NOMD5, RPMVSF_NORSA, RPMVSF_NORSAHEADER, RPMVSF_NOSHA1HEADER, pgpDig_s::sha1ctx, pgpDig_s::signature, rpmlead::signature_type, _FD_s::stats, and pgpDigParams_s::version.

Referenced by IDTXglob(), readRPM(), rpmgiReadHeader(), rpmInstall(), rpmInstallSourcePackage(), rpmts_HdrFromFdno(), rpmtsRun(), and rpmtsSolve().

static int rpmtsStashKeyid ( rpmts  ts) [static]

Remember current key id.

Parameters:
tstransaction set
Returns:
0 if new keyid, otherwise 1

Definition at line 608 of file package.c.

References keyids, nextkeyid, nkeyids, nkeyids_max, pgpGrab(), rpmtsDig(), rpmtsSig(), rpmtsSignature(), pgpDigParams_s::signid, and xrealloc().

Referenced by rpmReadPackageFile().


Variable Documentation

int _print_pkts = 0 [static]

Definition at line 37 of file package.c.

Referenced by headerCheck(), rpmReadPackageFile(), and rpmVerifySignatures().

unsigned char header_magic[8] [static]
Initial value:
 {
        0x8e, 0xad, 0xe8, 0x01, 0x00, 0x00, 0x00, 0x00
}

Definition at line 49 of file package.c.

Referenced by headerCheck(), rpmReadHeader(), and rpmReadPackageFile().

unsigned int* keyids [static]

Definition at line 46 of file package.c.

Referenced by rpmtsStashKeyid().

unsigned int nextkeyid = 0 [static]

Definition at line 44 of file package.c.

Referenced by rpmtsStashKeyid().

unsigned int nkeyids = 0 [static]

Definition at line 42 of file package.c.

Referenced by rpmtsStashKeyid().

unsigned int nkeyids_max = 256 [static]

Definition at line 40 of file package.c.

Referenced by rpmtsStashKeyid().

int typeAlign[16] [static]
Initial value:
  {
    1,  
    1,  
    1,  
    2,  
    4,  
    8,  
    1,  
    1,  
    1,  
    1,  
    0,
    0,
    0,
    0,
    0,
    0
}

Alignment needs (and sizeof scalars types) for internal rpm data types.

Definition at line 57 of file package.c.