506 lines
10 KiB
C
506 lines
10 KiB
C
#ifndef H_RPMIO_INTERNAL
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#define H_RPMIO_INTERNAL
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/** \ingroup rpmio
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* \file rpmio/rpmio_internal.h
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*/
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#include <rpmio.h>
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#include <rpmurl.h>
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#if HAVE_BEECRYPT_API_H
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#include <beecrypt/api.h>
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#else
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#include <beecrypt/beecrypt.api.h>
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#endif
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#include <rpmpgp.h>
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#include <rpmsw.h>
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/* Drag in the beecrypt includes. */
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#include <beecrypt/beecrypt.h>
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#include <beecrypt/base64.h>
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#include <beecrypt/dsa.h>
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#include <beecrypt/endianness.h>
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#include <beecrypt/md5.h>
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#include <beecrypt/mp.h>
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#include <beecrypt/rsa.h>
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#include <beecrypt/rsapk.h>
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#include <beecrypt/sha1.h>
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#if HAVE_BEECRYPT_API_H
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#include <beecrypt/sha256.h>
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#include <beecrypt/sha384.h>
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#include <beecrypt/sha512.h>
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#endif
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/** \ingroup rpmio
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* Values parsed from OpenPGP signature/pubkey packet(s).
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*/
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struct pgpDigParams_s {
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const char * userid;
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const byte * hash;
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const char * params[4];
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byte tag;
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byte version; /*!< version number. */
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byte time[4]; /*!< time that the key was created. */
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byte pubkey_algo; /*!< public key algorithm. */
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byte hash_algo;
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byte sigtype;
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byte hashlen;
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byte signhash16[2];
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byte signid[8];
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byte saved;
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#define PGPDIG_SAVED_TIME (1 << 0)
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#define PGPDIG_SAVED_ID (1 << 1)
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};
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/** \ingroup rpmio
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* Container for values parsed from an OpenPGP signature and public key.
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*/
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struct pgpDig_s {
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struct pgpDigParams_s signature;
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struct pgpDigParams_s pubkey;
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size_t nbytes; /*!< No. bytes of plain text. */
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DIGEST_CTX sha1ctx; /*!< (dsa) sha1 hash context. */
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DIGEST_CTX hdrsha1ctx; /*!< (dsa) header sha1 hash context. */
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void * sha1; /*!< (dsa) V3 signature hash. */
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size_t sha1len; /*!< (dsa) V3 signature hash length. */
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DIGEST_CTX md5ctx; /*!< (rsa) md5 hash context. */
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DIGEST_CTX hdrmd5ctx; /*!< (rsa) header md5 hash context. */
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void * md5; /*!< (rsa) V3 signature hash. */
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size_t md5len; /*!< (rsa) V3 signature hash length. */
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/* DSA parameters. */
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mpbarrett p;
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mpbarrett q;
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mpnumber g;
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mpnumber y;
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mpnumber hm;
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mpnumber r;
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mpnumber s;
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/* RSA parameters. */
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rsapk rsa_pk;
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mpnumber m;
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mpnumber c;
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mpnumber rsahm;
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};
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/** \ingroup rpmio
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*/
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typedef struct _FDSTACK_s {
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FDIO_t io;
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void * fp;
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int fdno;
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} FDSTACK_t;
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/** \ingroup rpmio
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* Identify per-desciptor I/O operation statistics.
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*/
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typedef enum fdOpX_e {
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FDSTAT_READ = 0, /*!< Read statistics index. */
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FDSTAT_WRITE = 1, /*!< Write statistics index. */
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FDSTAT_SEEK = 2, /*!< Seek statistics index. */
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FDSTAT_CLOSE = 3, /*!< Close statistics index */
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FDSTAT_DIGEST = 4, /*!< Digest statistics index. */
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FDSTAT_MAX = 5
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} fdOpX;
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/** \ingroup rpmio
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* Cumulative statistics for a descriptor.
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*/
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typedef struct {
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struct rpmop_s ops[FDSTAT_MAX]; /*!< Cumulative statistics. */
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} * FDSTAT_t;
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/** \ingroup rpmio
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*/
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typedef struct _FDDIGEST_s {
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pgpHashAlgo hashalgo;
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DIGEST_CTX hashctx;
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} * FDDIGEST_t;
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/** \ingroup rpmio
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* The FD_t File Handle data structure.
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*/
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struct _FD_s {
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int nrefs;
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int flags;
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#define RPMIO_DEBUG_IO 0x40000000
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#define RPMIO_DEBUG_REFS 0x20000000
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int magic;
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#define FDMAGIC 0x04463138
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int nfps;
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FDSTACK_t fps[8];
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int urlType; /* ufdio: */
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int rd_timeoutsecs; /* ufdRead: per FD_t timer */
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ssize_t bytesRemain; /* ufdio: */
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ssize_t contentLength; /* ufdio: */
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int persist; /* ufdio: */
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int wr_chunked; /* ufdio: */
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int syserrno; /* last system errno encountered */
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const void *errcookie; /* gzdio/bzdio/ufdio: */
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FDSTAT_t stats; /* I/O statistics */
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int ndigests;
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#define FDDIGEST_MAX 4
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struct _FDDIGEST_s digests[FDDIGEST_MAX];
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unsigned int firstFree; /* fadio: */
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long int fileSize; /* fadio: */
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long int fd_cpioPos; /* cpio: */
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};
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#define FDSANE(fd) assert(fd && fd->magic == FDMAGIC)
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extern int _rpmio_debug;
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#define DBG(_f, _m, _x) \
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\
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if ((_rpmio_debug | ((_f) ? ((FD_t)(_f))->flags : 0)) & (_m)) fprintf _x \
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#define DBGIO(_f, _x) DBG((_f), RPMIO_DEBUG_IO, _x)
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#define DBGREFS(_f, _x) DBG((_f), RPMIO_DEBUG_REFS, _x)
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \ingroup rpmio
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*/
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int fdFgets(FD_t fd, char * buf, size_t len);
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/** \ingroup rpmio
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*/
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int ufdClose( void * cookie);
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/** \ingroup rpmio
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*/
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static inline
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FDIO_t fdGetIo(FD_t fd)
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{
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FDSANE(fd);
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return fd->fps[fd->nfps].io;
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}
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/** \ingroup rpmio
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*/
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/* FIX: io may be NULL */
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static inline
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void fdSetIo(FD_t fd, FDIO_t io)
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{
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FDSANE(fd);
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fd->fps[fd->nfps].io = io;
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}
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/** \ingroup rpmio
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*/
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static inline
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FILE * fdGetFILE(FD_t fd)
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{
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FDSANE(fd);
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return ((FILE *)fd->fps[fd->nfps].fp);
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}
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/** \ingroup rpmio
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*/
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static inline
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void * fdGetFp(FD_t fd)
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{
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FDSANE(fd);
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return fd->fps[fd->nfps].fp;
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}
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/** \ingroup rpmio
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*/
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/* FIX: fp may be NULL */
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static inline
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void fdSetFp(FD_t fd, void * fp)
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{
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FDSANE(fd);
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fd->fps[fd->nfps].fp = fp;
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}
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/** \ingroup rpmio
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*/
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static inline
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int fdGetFdno(FD_t fd)
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{
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FDSANE(fd);
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return fd->fps[fd->nfps].fdno;
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdSetFdno(FD_t fd, int fdno)
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{
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FDSANE(fd);
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fd->fps[fd->nfps].fdno = fdno;
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdSetContentLength(FD_t fd, ssize_t contentLength)
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{
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FDSANE(fd);
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fd->contentLength = fd->bytesRemain = contentLength;
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdPush(FD_t fd, FDIO_t io, void * fp, int fdno)
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{
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FDSANE(fd);
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if (fd->nfps >= (sizeof(fd->fps)/sizeof(fd->fps[0]) - 1))
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return;
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fd->nfps++;
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fdSetIo(fd, io);
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fdSetFp(fd, fp);
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fdSetFdno(fd, fdno);
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdPop(FD_t fd)
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{
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FDSANE(fd);
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if (fd->nfps < 0) return;
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fdSetIo(fd, NULL);
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fdSetFp(fd, NULL);
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fdSetFdno(fd, -1);
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fd->nfps--;
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}
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/** \ingroup rpmio
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*/
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static inline
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rpmop fdstat_op(FD_t fd, fdOpX opx)
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{
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rpmop op = NULL;
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if (fd != NULL && fd->stats != NULL && opx >= 0 && opx < FDSTAT_MAX)
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op = fd->stats->ops + opx;
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return op;
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdstat_enter(FD_t fd, int opx)
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{
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if (fd == NULL) return;
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if (fd->stats != NULL)
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(void) rpmswEnter(fdstat_op(fd, opx), 0);
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdstat_exit(FD_t fd, int opx, ssize_t rc)
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{
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if (fd == NULL) return;
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if (rc == -1)
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fd->syserrno = errno;
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else if (rc > 0 && fd->bytesRemain > 0)
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switch (opx) {
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case FDSTAT_READ:
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case FDSTAT_WRITE:
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fd->bytesRemain -= rc;
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break;
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default:
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break;
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}
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if (fd->stats != NULL)
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(void) rpmswExit(fdstat_op(fd, opx), rc);
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdstat_print(FD_t fd, const char * msg, FILE * fp)
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{
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static int usec_scale = (1000*1000);
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int opx;
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if (fd == NULL || fd->stats == NULL) return;
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for (opx = 0; opx < 4; opx++) {
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rpmop op = &fd->stats->ops[opx];
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if (op->count <= 0) continue;
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switch (opx) {
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case FDSTAT_READ:
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if (msg) fprintf(fp, "%s:", msg);
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fprintf(fp, "%8d reads, %8ld total bytes in %d.%06d secs\n",
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op->count, (long)op->bytes,
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(int)(op->usecs/usec_scale), (int)(op->usecs%usec_scale));
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break;
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case FDSTAT_WRITE:
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if (msg) fprintf(fp, "%s:", msg);
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fprintf(fp, "%8d writes, %8ld total bytes in %d.%06d secs\n",
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op->count, (long)op->bytes,
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(int)(op->usecs/usec_scale), (int)(op->usecs%usec_scale));
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break;
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case FDSTAT_SEEK:
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break;
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case FDSTAT_CLOSE:
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break;
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}
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}
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdSetSyserrno(FD_t fd, int syserrno, const void * errcookie)
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{
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FDSANE(fd);
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fd->syserrno = syserrno;
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fd->errcookie = errcookie;
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}
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/** \ingroup rpmio
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*/
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static inline
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int fdGetRdTimeoutSecs(FD_t fd)
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{
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FDSANE(fd);
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return fd->rd_timeoutsecs;
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}
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/** \ingroup rpmio
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*/
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static inline
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long int fdGetCpioPos(FD_t fd)
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{
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FDSANE(fd);
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return fd->fd_cpioPos;
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdSetCpioPos(FD_t fd, long int cpioPos)
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{
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FDSANE(fd);
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fd->fd_cpioPos = cpioPos;
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}
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/** \ingroup rpmio
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*/
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static inline
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FD_t c2f(void * cookie)
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{
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FD_t fd = (FD_t) cookie;
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FDSANE(fd);
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return fd;
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}
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/** \ingroup rpmio
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* Attach digest to fd.
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*/
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static inline
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void fdInitDigest(FD_t fd, pgpHashAlgo hashalgo, int flags)
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{
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FDDIGEST_t fddig = fd->digests + fd->ndigests;
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if (fddig != (fd->digests + FDDIGEST_MAX)) {
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fd->ndigests++;
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fddig->hashalgo = hashalgo;
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fdstat_enter(fd, FDSTAT_DIGEST);
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fddig->hashctx = rpmDigestInit(hashalgo, flags);
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fdstat_exit(fd, FDSTAT_DIGEST, 0);
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}
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}
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/** \ingroup rpmio
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* Update digest(s) attached to fd.
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*/
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static inline
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void fdUpdateDigests(FD_t fd, const unsigned char * buf, ssize_t buflen)
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{
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int i;
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if (buf != NULL && buflen > 0)
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for (i = fd->ndigests - 1; i >= 0; i--) {
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FDDIGEST_t fddig = fd->digests + i;
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if (fddig->hashctx == NULL)
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continue;
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fdstat_enter(fd, FDSTAT_DIGEST);
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(void) rpmDigestUpdate(fddig->hashctx, buf, buflen);
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fdstat_exit(fd, FDSTAT_DIGEST, buflen);
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}
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}
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/** \ingroup rpmio
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*/
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static inline
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void fdFiniDigest(FD_t fd, pgpHashAlgo hashalgo,
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void ** datap,
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size_t * lenp,
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int asAscii)
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{
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int imax = -1;
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int i;
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for (i = fd->ndigests - 1; i >= 0; i--) {
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FDDIGEST_t fddig = fd->digests + i;
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if (fddig->hashctx == NULL)
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continue;
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if (i > imax) imax = i;
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if (fddig->hashalgo != hashalgo)
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continue;
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fdstat_enter(fd, FDSTAT_DIGEST);
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(void) rpmDigestFinal(fddig->hashctx, datap, lenp, asAscii);
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fdstat_exit(fd, FDSTAT_DIGEST, 0);
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fddig->hashctx = NULL;
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break;
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}
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if (i < 0) {
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if (datap) *datap = NULL;
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if (lenp) *lenp = 0;
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}
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fd->ndigests = imax;
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if (i < imax)
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fd->ndigests++; /* convert index to count */
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}
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/** \ingroup rpmio
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*/
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static inline
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int fdFileno(void * cookie)
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{
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FD_t fd;
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if (cookie == NULL) return -2;
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fd = c2f(cookie);
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return fd->fps[0].fdno;
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}
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/**
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* Read an entire file into a buffer.
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* @param fn file name to read
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* @retval *bp (malloc'd) buffer address
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* @retval *blenp (malloc'd) buffer length
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* @return 0 on success
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*/
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int rpmioSlurp(const char * fn,
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byte ** bp, ssize_t * blenp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* H_RPMIO_INTERNAL */
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