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rpm/lib/rpmte.c

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/** \ingroup rpmdep
* \file lib/rpmte.c
* Routine(s) to handle an "rpmte" transaction element.
*/
#include "system.h"
#include <rpm/rpmtypes.h>
#include <rpm/rpmlib.h> /* RPM_MACHTABLE_* */
#include <rpm/rpmmacro.h>
#include <rpm/rpmds.h>
#include <rpm/rpmfi.h>
#include <rpm/rpmts.h>
#include <rpm/rpmdb.h>
#include <rpm/rpmlog.h>
#include "lib/misc.h"
#include "lib/rpmplugins.h"
#include "lib/rpmte_internal.h"
/* strpool-related interfaces */
#include "lib/rpmfi_internal.h"
#include "lib/rpmds_internal.h"
#include "lib/rpmts_internal.h"
#include "debug.h"
/** \ingroup rpmte
* A single package instance to be installed/removed atomically.
*/
struct rpmte_s {
rpmElementType type; /*!< Package disposition (installed/removed). */
Header h; /*!< Package header. */
char * NEVR; /*!< Package name-version-release. */
char * NEVRA; /*!< Package name-version-release.arch. */
char * name; /*!< Name: */
char * epoch;
char * version; /*!< Version: */
char * release; /*!< Release: */
char * arch; /*!< Architecture hint. */
char * os; /*!< Operating system hint. */
int isSource; /*!< (TR_ADDED) source rpm? */
rpmte depends; /*!< Package updated by this package (ERASE te) */
rpmte parent; /*!< Parent transaction element. */
unsigned int db_instance; /*!< Database instance (of removed pkgs) */
tsortInfo tsi; /*!< Dependency ordering chains. */
rpmds thisds; /*!< This package's provided NEVR. */
rpmds provides; /*!< Provides: dependencies. */
rpmds requires; /*!< Requires: dependencies. */
rpmds conflicts; /*!< Conflicts: dependencies. */
rpmds obsoletes; /*!< Obsoletes: dependencies. */
rpmds order; /*!< Order: dependencies. */
rpmds recommends; /*!< Recommends: dependencies. */
rpmds suggests; /*!< Suggests: dependencies. */
rpmds supplements; /*!< Supplements: dependencies. */
rpmds enhances; /*!< Enhances: dependencies. */
rpmfiles files; /*!< File information. */
rpmfi fi; /*!< File iterator (backwards compat) */
rpmps probs; /*!< Problems (relocations) */
rpmts ts; /*!< Parent transaction */
rpm_color_t color; /*!< Color bit(s) from package dependencies. */
rpm_loff_t pkgFileSize; /*!< No. of bytes in package file (approx). */
unsigned int headerSize; /*!< No. of bytes in package header */
fnpyKey key; /*!< (TR_ADDED) Retrieval key. */
rpmRelocation * relocs; /*!< (TR_ADDED) Payload file relocations. */
int nrelocs; /*!< (TR_ADDED) No. of relocations. */
uint8_t *badrelocs; /*!< (TR_ADDED) Bad relocations (or NULL) */
FD_t fd; /*!< (TR_ADDED) Payload file descriptor. */
int verified; /*!< (TR_ADDED) Verification status */
int addop; /*!< (TR_ADDED) RPMTE_INSTALL/UPDATE/REINSTALL */
#define RPMTE_HAVE_PRETRANS (1 << 0)
#define RPMTE_HAVE_POSTTRANS (1 << 1)
int transscripts; /*!< pre/posttrans script existence */
int failed; /*!< (parent) install/erase failed */
rpmfs fs;
};
/* forward declarations */
static void rpmteColorDS(rpmte te, rpmTag tag);
static int rpmteClose(rpmte te, int reset_fi);
void rpmteCleanDS(rpmte te)
{
te->thisds = rpmdsFree(te->thisds);
te->provides = rpmdsFree(te->provides);
te->requires = rpmdsFree(te->requires);
te->conflicts = rpmdsFree(te->conflicts);
te->obsoletes = rpmdsFree(te->obsoletes);
te->recommends = rpmdsFree(te->recommends);
te->suggests = rpmdsFree(te->suggests);
te->supplements = rpmdsFree(te->supplements);
te->enhances = rpmdsFree(te->enhances);
te->order = rpmdsFree(te->order);
}
static rpmfiles getFiles(rpmte p, Header h)
{
/* TR_RPMDB handled as TR_ERASED for now, doesn't really matter */
rpmfiFlags fiflags;
fiflags = (p->type == TR_ADDED) ? (RPMFI_NOHEADER | RPMFI_FLAGS_INSTALL) :
(RPMFI_NOHEADER | RPMFI_FLAGS_ERASE);
/* relocate stuff in header if necessary */
if (rpmteType(p) == TR_ADDED && rpmfsFC(p->fs) > 0) {
if (!headerIsEntry(h, RPMTAG_ORIGBASENAMES)) {
if (rpmteIsSource(p)) {
/* Unlike binary packages, source relocation can fail */
if (rpmRelocateSrpmFileList(h, rpmtsRootDir(p->ts)) < 0) {
return NULL;
}
} else {
rpmRelocateFileList(p->relocs, p->nrelocs, p->fs, h);
}
}
}
return rpmfilesNew(rpmtsPool(p->ts), h, RPMTAG_BASENAMES, fiflags);
}
/**
* Initialize transaction element data from header.
* @param p transaction element
* @param h header
* @param key (TR_ADDED) package retrieval key (e.g. file name)
* @param relocs (TR_ADDED) package file relocations
*/
static int addTE(rpmte p, Header h, fnpyKey key, rpmRelocation * relocs)
{
rpmstrPool tspool = rpmtsPool(p->ts);
struct rpmtd_s bnames;
int rc = 1; /* assume failure */
p->name = headerGetAsString(h, RPMTAG_NAME);
p->version = headerGetAsString(h, RPMTAG_VERSION);
p->release = headerGetAsString(h, RPMTAG_RELEASE);
/* name, version and release are required in all packages */
if (p->name == NULL || p->version == NULL || p->release == NULL)
goto exit;
p->epoch = headerGetAsString(h, RPMTAG_EPOCH);
p->arch = headerGetAsString(h, RPMTAG_ARCH);
p->os = headerGetAsString(h, RPMTAG_OS);
/* gpg-pubkey's dont have os or arch (sigh), for others they are required */
if (!rstreq(p->name, "gpg-pubkey") && (p->arch == NULL || p->os == NULL))
goto exit;
p->isSource = headerIsSource(h);
p->NEVR = headerGetAsString(h, RPMTAG_NEVR);
p->NEVRA = headerGetAsString(h, RPMTAG_NEVRA);
p->nrelocs = 0;
p->relocs = NULL;
p->badrelocs = NULL;
if (relocs != NULL)
rpmRelocationBuild(h, relocs, &p->nrelocs, &p->relocs, &p->badrelocs);
p->db_instance = headerGetInstance(h);
p->key = key;
p->fd = NULL;
p->pkgFileSize = 0;
p->headerSize = headerSizeof(h, HEADER_MAGIC_NO);
p->thisds = rpmdsThisPool(tspool, h, RPMTAG_PROVIDENAME, RPMSENSE_EQUAL);
p->provides = rpmdsNewPool(tspool, h, RPMTAG_PROVIDENAME, 0);
p->requires = rpmdsNewPool(tspool, h, RPMTAG_REQUIRENAME, 0);
p->conflicts = rpmdsNewPool(tspool, h, RPMTAG_CONFLICTNAME, 0);
p->obsoletes = rpmdsNewPool(tspool, h, RPMTAG_OBSOLETENAME, 0);
p->order = rpmdsNewPool(tspool, h, RPMTAG_ORDERNAME, 0);
p->recommends = rpmdsNewPool(tspool, h, RPMTAG_RECOMMENDNAME, 0);
p->suggests = rpmdsNewPool(tspool, h, RPMTAG_SUGGESTNAME, 0);
p->supplements = rpmdsNewPool(tspool, h, RPMTAG_SUPPLEMENTNAME, 0);
p->enhances = rpmdsNewPool(tspool, h, RPMTAG_ENHANCENAME, 0);
/* Relocation needs to know file count before rpmfiNew() */
headerGet(h, RPMTAG_BASENAMES, &bnames, HEADERGET_MINMEM);
p->fs = rpmfsNew(rpmtdCount(&bnames), (p->type == TR_ADDED));
rpmtdFreeData(&bnames);
p->files = getFiles(p, h);
/* Packages with no files return an empty file info set, NULL is an error */
if (p->files == NULL)
goto exit;
/* See if we have pre/posttrans scripts. */
p->transscripts |= (headerIsEntry(h, RPMTAG_PRETRANS) ||
headerIsEntry(h, RPMTAG_PRETRANSPROG)) ?
RPMTE_HAVE_PRETRANS : 0;
p->transscripts |= (headerIsEntry(h, RPMTAG_POSTTRANS) ||
headerIsEntry(h, RPMTAG_POSTTRANSPROG)) ?
RPMTE_HAVE_POSTTRANS : 0;
rpmteColorDS(p, RPMTAG_PROVIDENAME);
rpmteColorDS(p, RPMTAG_REQUIRENAME);
if (p->type == TR_ADDED)
p->pkgFileSize = headerGetNumber(h, RPMTAG_LONGSIGSIZE) + 96 + 256;
rc = 0;
exit:
return rc;
}
rpmte rpmteFree(rpmte te)
{
if (te != NULL) {
if (te->relocs) {
for (int i = 0; i < te->nrelocs; i++) {
free(te->relocs[i].oldPath);
free(te->relocs[i].newPath);
}
free(te->relocs);
free(te->badrelocs);
}
free(te->os);
free(te->arch);
free(te->epoch);
free(te->name);
free(te->version);
free(te->release);
free(te->NEVR);
free(te->NEVRA);
fdFree(te->fd);
rpmfiFree(te->fi);
rpmfilesFree(te->files);
headerFree(te->h);
rpmfsFree(te->fs);
rpmpsFree(te->probs);
rpmteCleanDS(te);
memset(te, 0, sizeof(*te)); /* XXX trash and burn */
free(te);
}
return NULL;
}
rpmte rpmteNew(rpmts ts, Header h, rpmElementType type, fnpyKey key,
rpmRelocation * relocs, int addop)
{
rpmte p = xcalloc(1, sizeof(*p));
p->ts = ts;
p->type = type;
p->addop = addop;
p->verified = RPMSIG_UNVERIFIED_TYPE;
if (addTE(p, h, key, relocs)) {
rpmteFree(p);
return NULL;
}
return p;
}
unsigned int rpmteDBInstance(rpmte te)
{
return (te != NULL ? te->db_instance : 0);
}
void rpmteSetDBInstance(rpmte te, unsigned int instance)
{
if (te != NULL)
te->db_instance = instance;
}
Header rpmteHeader(rpmte te)
{
return (te != NULL && te->h != NULL ? headerLink(te->h) : NULL);
}
Header rpmteSetHeader(rpmte te, Header h)
{
if (te != NULL) {
te->h = headerFree(te->h);
if (h != NULL)
te->h = headerLink(h);
}
return NULL;
}
rpmElementType rpmteType(rpmte te)
{
/* XXX returning negative for unsigned type */
return (te != NULL ? te->type : -1);
}
const char * rpmteN(rpmte te)
{
return (te != NULL ? te->name : NULL);
}
const char * rpmteE(rpmte te)
{
return (te != NULL ? te->epoch : NULL);
}
const char * rpmteV(rpmte te)
{
return (te != NULL ? te->version : NULL);
}
const char * rpmteR(rpmte te)
{
return (te != NULL ? te->release : NULL);
}
const char * rpmteA(rpmte te)
{
return (te != NULL ? te->arch : NULL);
}
const char * rpmteO(rpmte te)
{
return (te != NULL ? te->os : NULL);
}
int rpmteIsSource(rpmte te)
{
return (te != NULL ? te->isSource : 0);
}
rpm_color_t rpmteColor(rpmte te)
{
return (te != NULL ? te->color : 0);
}
rpm_color_t rpmteSetColor(rpmte te, rpm_color_t color)
{
rpm_color_t ocolor = 0;
if (te != NULL) {
ocolor = te->color;
te->color = color;
}
return ocolor;
}
rpm_loff_t rpmtePkgFileSize(rpmte te)
{
return (te != NULL ? te->pkgFileSize : 0);
}
unsigned int rpmteHeaderSize(rpmte te)
{
return (te != NULL ? te->headerSize : 0);
}
rpmte rpmteParent(rpmte te)
{
return (te != NULL ? te->parent : NULL);
}
rpmte rpmteSetParent(rpmte te, rpmte pte)
{
rpmte opte = NULL;
if (te != NULL) {
opte = te->parent;
te->parent = pte;
}
return opte;
}
tsortInfo rpmteTSI(rpmte te)
{
return te->tsi;
}
void rpmteSetTSI(rpmte te, tsortInfo tsi)
{
te->tsi = tsi;
}
void rpmteSetDependsOn(rpmte te, rpmte depends)
{
te->depends = depends;
}
rpmte rpmteDependsOn(rpmte te)
{
return te->depends;
}
int rpmteDBOffset(rpmte te)
{
return rpmteDBInstance(te);
}
const char * rpmteEVR(rpmte te)
{
return (te != NULL ? te->NEVR + strlen(te->name) + 1 : NULL);
}
const char * rpmteNEVR(rpmte te)
{
return (te != NULL ? te->NEVR : NULL);
}
const char * rpmteNEVRA(rpmte te)
{
return (te != NULL ? te->NEVRA : NULL);
}
FD_t rpmteSetFd(rpmte te, FD_t fd)
{
if (te != NULL) {
if (te->fd != NULL)
te->fd = fdFree(te->fd);
if (fd != NULL)
te->fd = fdLink(fd);
}
return NULL;
}
fnpyKey rpmteKey(rpmte te)
{
return (te != NULL ? te->key : NULL);
}
rpmds rpmteDS(rpmte te, rpmTagVal tag)
{
if (te == NULL)
return NULL;
switch (tag) {
case RPMTAG_NAME: return te->thisds;
case RPMTAG_PROVIDENAME: return te->provides;
case RPMTAG_REQUIRENAME: return te->requires;
case RPMTAG_CONFLICTNAME: return te->conflicts;
case RPMTAG_OBSOLETENAME: return te->obsoletes;
case RPMTAG_ORDERNAME: return te->order;
case RPMTAG_RECOMMENDNAME: return te->recommends;
case RPMTAG_SUGGESTNAME: return te->suggests;
case RPMTAG_SUPPLEMENTNAME: return te->supplements;
case RPMTAG_ENHANCENAME: return te->enhances;
default: break;
}
return NULL;
}
void rpmteCleanFiles(rpmte te)
{
if (te != NULL) {
te->fi = rpmfiFree(te->fi);
te->files = rpmfilesFree(te->files);
}
}
rpmfi rpmteFI(rpmte te)
{
if (te == NULL)
return NULL;
if (te->fi == NULL)
te->fi = rpmfilesIter(te->files, RPMFI_ITER_FWD);
return te->fi; /* XXX take fi reference here? */
}
rpmfiles rpmteFiles(rpmte te)
{
return (te != NULL) ? rpmfilesLink(te->files) : NULL;
}
static void rpmteColorDS(rpmte te, rpmTag tag)
{
rpmfi fi;
rpmds ds = rpmteDS(te, tag);
char deptype = 'R';
char mydt;
const uint32_t * ddict;
rpm_color_t * colors;
rpm_color_t val;
int Count;
unsigned ix;
int ndx, i;
if (!(te && (Count = rpmdsCount(ds)) > 0 && rpmfilesFC(te->files) > 0))
return;
switch (tag) {
default:
return;
break;
case RPMTAG_PROVIDENAME:
deptype = 'P';
break;
case RPMTAG_REQUIRENAME:
deptype = 'R';
break;
}
colors = xcalloc(Count, sizeof(*colors));
/* Calculate dependency color. */
fi = rpmfilesIter(te->files, RPMFI_ITER_FWD);
while (rpmfiNext(fi) >= 0) {
val = rpmfiFColor(fi);
ddict = NULL;
ndx = rpmfiFDepends(fi, &ddict);
if (ddict != NULL)
while (ndx-- > 0) {
ix = *ddict++;
mydt = ((ix >> 24) & 0xff);
if (mydt != deptype)
continue;
ix &= 0x00ffffff;
assert (ix < Count);
colors[ix] |= val;
}
}
/* Set color values in dependency set. */
ds = rpmdsInit(ds);
while ((i = rpmdsNext(ds)) >= 0) {
val = colors[i];
te->color |= val;
(void) rpmdsSetColor(ds, val);
}
free(colors);
rpmfiFree(fi);
}
static Header rpmteDBHeader(rpmte te)
{
Header h = NULL;
rpmdbMatchIterator mi;
mi = rpmtsInitIterator(te->ts, RPMDBI_PACKAGES,
&te->db_instance, sizeof(te->db_instance));
/* iterator returns weak refs, grab hold of header */
if ((h = rpmdbNextIterator(mi)))
h = headerLink(h);
rpmdbFreeIterator(mi);
return h;
}
static Header rpmteFDHeader(rpmte te)
{
Header h = NULL;
te->fd = rpmtsNotify(te->ts, te, RPMCALLBACK_INST_OPEN_FILE, 0, 0);
if (te->fd != NULL) {
rpmVSFlags ovsflags;
rpmRC pkgrc;
ovsflags = rpmtsSetVSFlags(te->ts,
rpmtsVSFlags(te->ts) | RPMVSF_NEEDPAYLOAD);
pkgrc = rpmReadPackageFile(te->ts, te->fd, rpmteNEVRA(te), &h);
rpmtsSetVSFlags(te->ts, ovsflags);
switch (pkgrc) {
default:
rpmteClose(te, 1);
break;
case RPMRC_NOTTRUSTED:
case RPMRC_NOKEY:
case RPMRC_OK:
break;
}
}
return h;
}
static int rpmteOpen(rpmte te, int reload_fi)
{
int rc = 0; /* assume failure */
Header h = NULL;
if (te == NULL || te->ts == NULL || rpmteFailed(te))
goto exit;
rpmteSetHeader(te, NULL);
switch (rpmteType(te)) {
case TR_ADDED:
h = rpmteDBInstance(te) ? rpmteDBHeader(te) : rpmteFDHeader(te);
break;
case TR_REMOVED:
case TR_RPMDB:
h = rpmteDBHeader(te);
break;
}
if (h != NULL) {
if (reload_fi) {
/* This can fail if we get a different, bad header from callback */
te->files = getFiles(te, h);
rc = (te->files != NULL);
} else {
rc = 1;
}
rpmteSetHeader(te, h);
headerFree(h);
}
exit:
return rc;
}
static int rpmteClose(rpmte te, int reset_fi)
{
if (te == NULL || te->ts == NULL)
return 0;
switch (te->type) {
case TR_ADDED:
if (te->fd) {
rpmtsNotify(te->ts, te, RPMCALLBACK_INST_CLOSE_FILE, 0, 0);
te->fd = NULL;
}
break;
case TR_REMOVED:
case TR_RPMDB:
/* eventually we'll want notifications for erase open too */
break;
}
rpmteSetHeader(te, NULL);
if (reset_fi) {
rpmteCleanFiles(te);
}
return 1;
}
FD_t rpmtePayload(rpmte te)
{
FD_t payload = NULL;
if (te->fd && te->h) {
const char *compr = headerGetString(te->h, RPMTAG_PAYLOADCOMPRESSOR);
char *ioflags = rstrscat(NULL, "r.", compr ? compr : "gzip", NULL);
payload = Fdopen(fdDup(Fileno(te->fd)), ioflags);
free(ioflags);
}
return payload;
}
static int rpmteMarkFailed(rpmte te)
{
te->failed++;
/* No need to do this more than once, avoid recursion loops */
if (te->failed == 1) {
rpmtsi pi = rpmtsiInit(te->ts);
rpmte p;
/* XXX we can do a much better here than this... */
while ((p = rpmtsiNext(pi, TR_REMOVED))) {
if (rpmteDependsOn(p) == te) {
rpmteMarkFailed(p);
}
}
rpmtsiFree(pi);
}
return te->failed;
}
int rpmteFailed(rpmte te)
{
return (te != NULL) ? te->failed : -1;
}
int rpmteHaveTransScript(rpmte te, rpmTagVal tag)
{
int rc = 0;
if (tag == RPMTAG_PRETRANS) {
rc = (te->transscripts & RPMTE_HAVE_PRETRANS);
} else if (tag == RPMTAG_POSTTRANS) {
rc = (te->transscripts & RPMTE_HAVE_POSTTRANS);
}
return rc;
}
rpmps rpmteProblems(rpmte te)
{
return (te != NULL) ? rpmpsLink(te->probs) : NULL;
}
void rpmteCleanProblems(rpmte te)
{
if (te != NULL && te->probs != NULL) {
te->probs = rpmpsFree(te->probs);
}
}
static void appendProblem(rpmte te, rpmProblemType type,
fnpyKey key, const char * altNEVR,
const char * str, uint64_t number)
{
rpmProblem o;
rpmProblem p = rpmProblemCreate(type, te->NEVRA, key, altNEVR, str, number);
rpmpsi psi = rpmpsInitIterator(te->probs);
/* Only add new, unique problems to the set */
while ((o = rpmpsiNext(psi))) {
if (rpmProblemCompare(p, o) == 0)
break;
}
rpmpsFreeIterator(psi);
if (o == NULL) {
if (te->probs == NULL)
te->probs = rpmpsCreate();
rpmpsAppendProblem(te->probs, p);
rpmteMarkFailed(te);
}
rpmProblemFree(p);
}
void rpmteAddProblem(rpmte te, rpmProblemType type,
const char *altNEVR, const char *str, uint64_t number)
{
if (te != NULL) {
appendProblem(te, type, rpmteKey(te), altNEVR, str, number);
}
}
void rpmteAddDepProblem(rpmte te, const char * altNEVR, rpmds ds,
fnpyKey * suggestedKeys)
{
if (te != NULL) {
const char * DNEVR = rpmdsDNEVR(ds);
rpmProblemType type;
fnpyKey key = (suggestedKeys ? suggestedKeys[0] : NULL);
switch ((unsigned)DNEVR[0]) {
case 'O': type = RPMPROB_OBSOLETES; break;
case 'C': type = RPMPROB_CONFLICT; break;
default:
case 'R': type = RPMPROB_REQUIRES; break;
}
appendProblem(te, type, key, altNEVR, DNEVR+2, rpmdsInstance(ds));
}
}
void rpmteAddRelocProblems(rpmte te)
{
if (te && te->badrelocs) {
for (int i = 0; i < te->nrelocs; i++) {
if (te->badrelocs[i]) {
rpmteAddProblem(te, RPMPROB_BADRELOCATE, NULL,
te->relocs[i].oldPath, 0);
}
}
}
}
const char * rpmteTypeString(rpmte te)
{
switch (rpmteType(te)) {
case TR_ADDED: return _("install");
case TR_REMOVED: return _("erase");
case TR_RPMDB: return _("rpmdb");
default: return "???";
}
}
rpmfs rpmteGetFileStates(rpmte te)
{
return te->fs;
}
void rpmteSetVerified(rpmte te, int verified)
{
te->verified = verified;
}
int rpmteVerified(rpmte te)
{
return (te != NULL) ? te->verified : 0;
}
int rpmteAddOp(rpmte te)
{
return te->addop;
}
int rpmteProcess(rpmte te, pkgGoal goal, int num)
{
/* Only install/erase resets pkg file info */
int scriptstage = (goal != PKG_INSTALL && goal != PKG_ERASE);
int test = (rpmtsFlags(te->ts) & RPMTRANS_FLAG_TEST);
int reset_fi = (scriptstage == 0 && test == 0);
int failed = 1;
/* Dont bother opening for elements without pre/posttrans scripts */
if (goal == PKG_PRETRANS || goal == PKG_POSTTRANS) {
if (!rpmteHaveTransScript(te, goal)) {
return 0;
}
}
if (rpmteOpen(te, reset_fi)) {
if (!scriptstage) {
rpmtsNotify(te->ts, te, RPMCALLBACK_ELEM_PROGRESS, num,
rpmtsMembers(te->ts)->orderCount);
}
failed = rpmpsmRun(te->ts, te, goal);
rpmteClose(te, reset_fi);
}
if (failed) {
failed = rpmteMarkFailed(te);
}
return failed;
}
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