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-rw-r--r--runtime/librsgt.c359
-rw-r--r--runtime/librsgt.h36
-rw-r--r--runtime/lmsig_gt.c17
-rw-r--r--runtime/sigprov.h6
4 files changed, 229 insertions, 189 deletions
diff --git a/runtime/librsgt.c b/runtime/librsgt.c
index f2ad2727..83a2fe05 100644
--- a/runtime/librsgt.c
+++ b/runtime/librsgt.c
@@ -88,19 +88,34 @@ rsgtExit(void)
}
+static inline gtfile
+rsgtfileConstruct(gtctx ctx)
+{
+ gtfile gf;
+ if((gf = calloc(1, sizeof(struct gtfile_s))) == NULL)
+ goto done;
+ gf->ctx = ctx;
+ gf->hashAlg = ctx->hashAlg;
+ gf->bKeepRecordHashes = ctx->bKeepRecordHashes;
+ gf->bKeepTreeHashes = ctx->bKeepTreeHashes;
+ gf->x_prev = NULL;
+
+done: return gf;
+}
+
static inline void
-tlvbufPhysWrite(gtctx ctx)
+tlvbufPhysWrite(gtfile gf)
{
ssize_t lenBuf;
ssize_t iTotalWritten;
ssize_t iWritten;
char *pWriteBuf;
- lenBuf = ctx->tlvIdx;
- pWriteBuf = ctx->tlvBuf;
+ lenBuf = gf->tlvIdx;
+ pWriteBuf = gf->tlvBuf;
iTotalWritten = 0;
do {
- iWritten = write(ctx->fd, pWriteBuf, lenBuf);
+ iWritten = write(gf->fd, pWriteBuf, lenBuf);
if(iWritten < 0) {
//char errStr[1024];
int err = errno;
@@ -122,14 +137,14 @@ tlvbufPhysWrite(gtctx ctx)
} while(lenBuf > 0); /* Warning: do..while()! */
finalize_it:
- ctx->tlvIdx = 0;
+ gf->tlvIdx = 0;
}
static inline void
-tlvbufChkWrite(gtctx ctx)
+tlvbufChkWrite(gtfile gf)
{
- if(ctx->tlvIdx == sizeof(ctx->tlvBuf)) {
- tlvbufPhysWrite(ctx);
+ if(gf->tlvIdx == sizeof(gf->tlvBuf)) {
+ tlvbufPhysWrite(gf);
}
}
@@ -138,17 +153,17 @@ tlvbufChkWrite(gtctx ctx)
* output is written only on flush or close.
*/
static inline void
-tlvbufAddOctet(gtctx ctx, int8_t octet)
+tlvbufAddOctet(gtfile gf, int8_t octet)
{
- tlvbufChkWrite(ctx);
- ctx->tlvBuf[ctx->tlvIdx++] = octet;
+ tlvbufChkWrite(gf);
+ gf->tlvBuf[gf->tlvIdx++] = octet;
}
static inline void
-tlvbufAddOctetString(gtctx ctx, uint8_t *octet, int size)
+tlvbufAddOctetString(gtfile gf, uint8_t *octet, int size)
{
int i;
for(i = 0 ; i < size ; ++i)
- tlvbufAddOctet(ctx, octet[i]);
+ tlvbufAddOctet(gf, octet[i]);
}
/* return the actual length in to-be-written octets of an integer */
static inline uint8_t
@@ -171,95 +186,95 @@ tlvbufGetInt64OctetSize(uint64_t val)
return 1;
}
static inline void
-tlvbufAddInt64(gtctx ctx, uint64_t val)
+tlvbufAddInt64(gtfile gf, uint64_t val)
{
uint8_t doWrite = 0;
if(val >> 56)
- tlvbufAddOctet(ctx, (val >> 56) & 0xff), doWrite = 1;
+ tlvbufAddOctet(gf, (val >> 56) & 0xff), doWrite = 1;
if(doWrite || ((val >> 48) & 0xff))
- tlvbufAddOctet(ctx, (val >> 48) & 0xff), doWrite = 1;
+ tlvbufAddOctet(gf, (val >> 48) & 0xff), doWrite = 1;
if(doWrite || ((val >> 40) & 0xff))
- tlvbufAddOctet(ctx, (val >> 40) & 0xff), doWrite = 1;
+ tlvbufAddOctet(gf, (val >> 40) & 0xff), doWrite = 1;
if(doWrite || ((val >> 32) & 0xff))
- tlvbufAddOctet(ctx, (val >> 32) & 0xff), doWrite = 1;
+ tlvbufAddOctet(gf, (val >> 32) & 0xff), doWrite = 1;
if(doWrite || ((val >> 24) & 0xff))
- tlvbufAddOctet(ctx, (val >> 24) & 0xff), doWrite = 1;
+ tlvbufAddOctet(gf, (val >> 24) & 0xff), doWrite = 1;
if(doWrite || ((val >> 16) & 0xff))
- tlvbufAddOctet(ctx, (val >> 16) & 0xff), doWrite = 1;
+ tlvbufAddOctet(gf, (val >> 16) & 0xff), doWrite = 1;
if(doWrite || ((val >> 8) & 0xff))
- tlvbufAddOctet(ctx, (val >> 8) & 0xff), doWrite = 1;
- tlvbufAddOctet(ctx, val & 0xff);
+ tlvbufAddOctet(gf, (val >> 8) & 0xff), doWrite = 1;
+ tlvbufAddOctet(gf, val & 0xff);
}
void
-tlv8Write(gtctx ctx, int flags, int tlvtype, int len)
+tlv8Write(gtfile gf, int flags, int tlvtype, int len)
{
- tlvbufAddOctet(ctx, (flags << 5)|tlvtype);
- tlvbufAddOctet(ctx, len & 0xff);
+ tlvbufAddOctet(gf, (flags << 5)|tlvtype);
+ tlvbufAddOctet(gf, len & 0xff);
}
void
-tlv16Write(gtctx ctx, int flags, int tlvtype, uint16_t len)
+tlv16Write(gtfile gf, int flags, int tlvtype, uint16_t len)
{
uint16_t typ;
typ = ((flags|1) << 13)|tlvtype;
- tlvbufAddOctet(ctx, typ >> 8);
- tlvbufAddOctet(ctx, typ & 0xff);
- tlvbufAddOctet(ctx, (len >> 8) & 0xff);
- tlvbufAddOctet(ctx, len & 0xff);
+ tlvbufAddOctet(gf, typ >> 8);
+ tlvbufAddOctet(gf, typ & 0xff);
+ tlvbufAddOctet(gf, (len >> 8) & 0xff);
+ tlvbufAddOctet(gf, len & 0xff);
}
void
-tlvFlush(gtctx ctx)
+tlvFlush(gtfile gf)
{
- if(ctx->tlvIdx != 0)
- tlvbufPhysWrite(ctx);
+ if(gf->tlvIdx != 0)
+ tlvbufPhysWrite(gf);
}
void
-tlvWriteHash(gtctx ctx, uint16_t tlvtype, GTDataHash *r)
+tlvWriteHash(gtfile gf, uint16_t tlvtype, GTDataHash *r)
{
unsigned tlvlen;
tlvlen = 1 + r->digest_length;
- tlv16Write(ctx, 0x00, tlvtype, tlvlen);
- tlvbufAddOctet(ctx, hashIdentifier(ctx->hashAlg));
- tlvbufAddOctetString(ctx, r->digest, r->digest_length);
+ tlv16Write(gf, 0x00, tlvtype, tlvlen);
+ tlvbufAddOctet(gf, hashIdentifier(gf->hashAlg));
+ tlvbufAddOctetString(gf, r->digest, r->digest_length);
}
void
-tlvWriteBlockSig(gtctx ctx, uchar *der, uint16_t lenDer)
+tlvWriteBlockSig(gtfile gf, uchar *der, uint16_t lenDer)
{
unsigned tlvlen;
uint8_t tlvlenRecords;
- tlvlenRecords = tlvbufGetInt64OctetSize(ctx->nRecords);
+ tlvlenRecords = tlvbufGetInt64OctetSize(gf->nRecords);
tlvlen = 2 + 1 /* hash algo TLV */ +
- 2 + hashOutputLengthOctets(ctx->hashAlg) /* iv */ +
- 2 + 1 + ctx->lenBlkStrtHash /* last hash */ +
+ 2 + hashOutputLengthOctets(gf->hashAlg) /* iv */ +
+ 2 + 1 + gf->lenBlkStrtHash /* last hash */ +
2 + tlvlenRecords /* rec-count */ +
4 + lenDer /* rfc-3161 */;
/* write top-level TLV object (block-sig */
- tlv16Write(ctx, 0x00, 0x0902, tlvlen);
+ tlv16Write(gf, 0x00, 0x0902, tlvlen);
/* and now write the children */
//FIXME: flags???
/* hash-algo */
- tlv8Write(ctx, 0x00, 0x00, 1);
- tlvbufAddOctet(ctx, hashIdentifier(ctx->hashAlg));
+ tlv8Write(gf, 0x00, 0x00, 1);
+ tlvbufAddOctet(gf, hashIdentifier(gf->hashAlg));
/* block-iv */
- tlv8Write(ctx, 0x00, 0x01, hashOutputLengthOctets(ctx->hashAlg));
- tlvbufAddOctetString(ctx, ctx->IV, hashOutputLengthOctets(ctx->hashAlg));
+ tlv8Write(gf, 0x00, 0x01, hashOutputLengthOctets(gf->hashAlg));
+ tlvbufAddOctetString(gf, gf->IV, hashOutputLengthOctets(gf->hashAlg));
/* last-hash */
- tlv8Write(ctx, 0x00, 0x02, ctx->lenBlkStrtHash+1);
- tlvbufAddOctet(ctx, hashIdentifier(ctx->hashAlg));
- tlvbufAddOctetString(ctx, ctx->blkStrtHash, ctx->lenBlkStrtHash);
+ tlv8Write(gf, 0x00, 0x02, gf->lenBlkStrtHash+1);
+ tlvbufAddOctet(gf, hashIdentifier(gf->hashAlg));
+ tlvbufAddOctetString(gf, gf->blkStrtHash, gf->lenBlkStrtHash);
/* rec-count */
- tlv8Write(ctx, 0x00, 0x03, tlvlenRecords);
- tlvbufAddInt64(ctx, ctx->nRecords);
+ tlv8Write(gf, 0x00, 0x03, tlvlenRecords);
+ tlvbufAddInt64(gf, gf->nRecords);
/* rfc-3161 */
- tlv16Write(ctx, 0x00, 0x906, lenDer);
- tlvbufAddOctetString(ctx, der, lenDer);
+ tlv16Write(gf, 0x00, 0x906, lenDer);
+ tlvbufAddOctetString(gf, der, lenDer);
}
/* read rsyslog log state file; if we cannot access it or the
@@ -268,85 +283,85 @@ tlvWriteBlockSig(gtctx ctx, uchar *der, uint16_t lenDer)
* The context is initialized accordingly.
*/
static void
-readStateFile(gtctx ctx)
+readStateFile(gtfile gf)
{
int fd;
struct rsgtstatefile sf;
- fd = open((char*)ctx->statefilename, O_RDONLY|O_NOCTTY|O_CLOEXEC, 0600);
+ fd = open((char*)gf->statefilename, O_RDONLY|O_NOCTTY|O_CLOEXEC, 0600);
if(fd == -1) goto err;
if(read(fd, &sf, sizeof(sf)) != sizeof(sf)) goto err;
if(strncmp(sf.hdr, "GTSTAT10", 8)) goto err;
- ctx->lenBlkStrtHash = sf.lenHash;
- ctx->blkStrtHash = calloc(1, ctx->lenBlkStrtHash);
- if(read(fd, ctx->blkStrtHash, ctx->lenBlkStrtHash)
- != ctx->lenBlkStrtHash) {
- free(ctx->blkStrtHash);
+ gf->lenBlkStrtHash = sf.lenHash;
+ gf->blkStrtHash = calloc(1, gf->lenBlkStrtHash);
+ if(read(fd, gf->blkStrtHash, gf->lenBlkStrtHash)
+ != gf->lenBlkStrtHash) {
+ free(gf->blkStrtHash);
goto err;
}
return;
err:
- ctx->lenBlkStrtHash = hashOutputLengthOctets(ctx->hashAlg);
- ctx->blkStrtHash = calloc(1, ctx->lenBlkStrtHash);
+ gf->lenBlkStrtHash = hashOutputLengthOctets(gf->hashAlg);
+ gf->blkStrtHash = calloc(1, gf->lenBlkStrtHash);
}
/* persist all information that we need to re-open and append
* to a log signature file.
*/
static void
-writeStateFile(gtctx ctx)
+writeStateFile(gtfile gf)
{
int fd;
struct rsgtstatefile sf;
- fd = open((char*)ctx->statefilename,
+ fd = open((char*)gf->statefilename,
O_WRONLY|O_CREAT|O_TRUNC|O_NOCTTY|O_CLOEXEC, 0600);
if(fd == -1)
goto done;
memcpy(sf.hdr, "GTSTAT10", 8);
- sf.hashID = hashIdentifier(ctx->hashAlg);
- sf.lenHash = ctx->x_prev->digest_length;
+ sf.hashID = hashIdentifier(gf->hashAlg);
+ sf.lenHash = gf->x_prev->digest_length;
write(fd, &sf, sizeof(sf));
- write(fd, ctx->x_prev->digest, ctx->x_prev->digest_length);
+ write(fd, gf->x_prev->digest, gf->x_prev->digest_length);
close(fd);
done: return;
}
-void tlvClose(gtctx ctx)
+void tlvClose(gtfile gf)
{
- tlvFlush(ctx);
- close(ctx->fd);
- ctx->fd = -1;
- writeStateFile(ctx);
+ tlvFlush(gf);
+ close(gf->fd);
+ gf->fd = -1;
+ writeStateFile(gf);
}
/* note: if file exists, the last hash for chaining must
* be read from file.
*/
-void tlvOpen(gtctx ctx, char *hdr, unsigned lenHdr)
+void tlvOpen(gtfile gf, char *hdr, unsigned lenHdr)
{
- ctx->fd = open((char*)ctx->sigfilename,
+ gf->fd = open((char*)gf->sigfilename,
O_WRONLY|O_APPEND|O_NOCTTY|O_CLOEXEC, 0600);
- if(ctx->fd == -1) {
+ if(gf->fd == -1) {
/* looks like we need to create a new file */
- ctx->fd = open((char*)ctx->sigfilename,
+ gf->fd = open((char*)gf->sigfilename,
O_WRONLY|O_CREAT|O_NOCTTY|O_CLOEXEC, 0600);
// FIXME: check fd == -1
- memcpy(ctx->tlvBuf, hdr, lenHdr);
- ctx->tlvIdx = lenHdr;
+ memcpy(gf->tlvBuf, hdr, lenHdr);
+ gf->tlvIdx = lenHdr;
} else {
- ctx->tlvIdx = 0; /* header already present! */
+ gf->tlvIdx = 0; /* header already present! */
}
/* we now need to obtain the last previous hash, so that
* we can continue the hash chain.
*/
- readStateFile(ctx);
+ readStateFile(gf);
}
/*
@@ -357,13 +372,13 @@ void tlvOpen(gtctx ctx, char *hdr, unsigned lenHdr)
* reproduce). -- rgerhards, 2013-03-04
*/
void
-seedIV(gtctx ctx)
+seedIV(gtfile gf)
{
int hashlen;
int fd;
- hashlen = hashOutputLengthOctets(ctx->hashAlg);
- ctx->IV = malloc(hashlen); /* do NOT zero-out! */
+ hashlen = hashOutputLengthOctets(gf->hashAlg);
+ gf->IV = malloc(hashlen); /* do NOT zero-out! */
/* if we cannot obtain data from /dev/urandom, we use whatever
* is present at the current memory location as random data. Of
* course, this is very weak and we should consider a different
@@ -372,7 +387,7 @@ seedIV(gtctx ctx)
* will always work...). -- TODO -- rgerhards, 2013-03-06
*/
if((fd = open("/dev/urandom", O_RDONLY)) > 0) {
- read(fd, ctx->IV, hashlen);
+ read(fd, gf->IV, hashlen);
close(fd);
}
}
@@ -382,25 +397,30 @@ rsgtCtxNew(void)
{
gtctx ctx;
ctx = calloc(1, sizeof(struct gtctx_s));
- ctx->x_prev = NULL;
ctx->hashAlg = GT_HASHALG_SHA256;
ctx->timestamper = strdup(
"http://stamper.guardtime.net/gt-signingservice");
return ctx;
}
-int
+/* either returns gtfile object or NULL if something went wrong */
+gtfile
rsgtCtxOpenFile(gtctx ctx, unsigned char *logfn)
{
+ gtfile gf;
char fn[MAXFNAME+1];
+
+ if((gf = rsgtfileConstruct(ctx)) == NULL)
+ goto done;
+
snprintf(fn, sizeof(fn), "%s.gtsig", logfn);
fn[MAXFNAME] = '\0'; /* be on save side */
- ctx->sigfilename = (uchar*) strdup(fn);
+ gf->sigfilename = (uchar*) strdup(fn);
snprintf(fn, sizeof(fn), "%s.gtstate", logfn);
fn[MAXFNAME] = '\0'; /* be on save side */
- ctx->statefilename = (uchar*) strdup(fn);
- tlvOpen(ctx, LOGSIGHDR, sizeof(LOGSIGHDR)-1);
- return 0;
+ gf->statefilename = (uchar*) strdup(fn);
+ tlvOpen(gf, LOGSIGHDR, sizeof(LOGSIGHDR)-1);
+done: return gf;
}
@@ -425,54 +445,61 @@ rsgtSetHashFunction(gtctx ctx, char *algName)
r = 1;
return r;
}
+
void
-rsgtCtxDel(gtctx ctx)
+rsgtfileDestruct(gtfile gf)
{
- if(ctx == NULL)
+ if(gf == NULL)
goto done;
- if(ctx->bInBlk)
- sigblkFinish(ctx);
- tlvClose(ctx);
- free(ctx->sigfilename);
- free(ctx);
- /* TODO: persist! */
+ if(gf->bInBlk)
+ sigblkFinish(gf);
+ tlvClose(gf);
+ free(gf->sigfilename);
+ free(gf);
done: return;
}
+void
+rsgtCtxDel(gtctx ctx)
+{
+ if(ctx != NULL)
+ free(ctx);
+}
+
/* new sigblk is initialized, but maybe in existing ctx */
void
-sigblkInit(gtctx ctx)
+sigblkInit(gtfile gf)
{
- seedIV(ctx);
- memset(ctx->roots_valid, 0, sizeof(ctx->roots_valid)/sizeof(char));
- ctx->nRoots = 0;
- ctx->nRecords = 0;
- ctx->bInBlk = 1;
+ seedIV(gf);
+ memset(gf->roots_valid, 0, sizeof(gf->roots_valid)/sizeof(char));
+ gf->nRoots = 0;
+ gf->nRecords = 0;
+ gf->bInBlk = 1;
}
/* concat: add IV to buffer */
static inline void
-bufAddIV(gtctx ctx, uchar *buf, size_t *len)
+bufAddIV(gtfile gf, uchar *buf, size_t *len)
{
- memcpy(buf+*len, &ctx->IV, sizeof(ctx->IV));
- *len += sizeof(ctx->IV);
+ memcpy(buf+*len, &gf->IV, sizeof(gf->IV));
+ *len += sizeof(gf->IV);
}
/* concat: add hash to buffer */
static inline void
-bufAddHash(gtctx ctx, uchar *buf, size_t *len, GTDataHash *hash)
+bufAddHash(gtfile gf, uchar *buf, size_t *len, GTDataHash *hash)
{
if(hash == NULL) {
// TODO: how to get the REAL HASH ID? --> add field!
- buf[*len] = hashIdentifier(ctx->hashAlg);
+ buf[*len] = hashIdentifier(gf->hashAlg);
++(*len);
- memcpy(buf+*len, ctx->blkStrtHash, ctx->lenBlkStrtHash);
- *len += ctx->lenBlkStrtHash;
+ memcpy(buf+*len, gf->blkStrtHash, gf->lenBlkStrtHash);
+ *len += gf->lenBlkStrtHash;
} else {
- buf[*len] = hashIdentifier(ctx->hashAlg);
+ buf[*len] = hashIdentifier(gf->hashAlg);
++(*len);
memcpy(buf+*len, hash->digest, hash->digest_length);
*len += hash->digest_length;
@@ -488,97 +515,97 @@ bufAddLevel(uchar *buf, size_t *len, uint8_t level)
static void
-hash_m(gtctx ctx, GTDataHash **m)
+hash_m(gtfile gf, GTDataHash **m)
{
#warning Overall: check GT API return states!
- // m = hash(concat(ctx->x_prev, IV));
+ // m = hash(concat(gf->x_prev, IV));
uchar concatBuf[16*1024];
size_t len = 0;
- bufAddHash(ctx, concatBuf, &len, ctx->x_prev);
- bufAddIV(ctx, concatBuf, &len);
- GTDataHash_create(ctx->hashAlg, concatBuf, len, m);
+ bufAddHash(gf, concatBuf, &len, gf->x_prev);
+ bufAddIV(gf, concatBuf, &len);
+ GTDataHash_create(gf->hashAlg, concatBuf, len, m);
}
static inline void
-hash_r(gtctx ctx, GTDataHash **r, const uchar *rec, const size_t len)
+hash_r(gtfile gf, GTDataHash **r, const uchar *rec, const size_t len)
{
// r = hash(canonicalize(rec));
- GTDataHash_create(ctx->hashAlg, rec, len, r);
+ GTDataHash_create(gf->hashAlg, rec, len, r);
}
static void
-hash_node(gtctx ctx, GTDataHash **node, GTDataHash *m, GTDataHash *r,
+hash_node(gtfile gf, GTDataHash **node, GTDataHash *m, GTDataHash *r,
uint8_t level)
{
// x = hash(concat(m, r, 0)); /* hash leaf */
uchar concatBuf[16*1024];
size_t len = 0;
- bufAddHash(ctx, concatBuf, &len, m);
- bufAddHash(ctx, concatBuf, &len, r);
+ bufAddHash(gf, concatBuf, &len, m);
+ bufAddHash(gf, concatBuf, &len, r);
bufAddLevel(concatBuf, &len, level);
- GTDataHash_create(ctx->hashAlg, concatBuf, len, node);
+ GTDataHash_create(gf->hashAlg, concatBuf, len, node);
}
void
-sigblkAddRecord(gtctx ctx, const uchar *rec, const size_t len)
+sigblkAddRecord(gtfile gf, const uchar *rec, const size_t len)
{
GTDataHash *x; /* current hash */
GTDataHash *m, *r, *t;
uint8_t j;
- hash_m(ctx, &m);
- hash_r(ctx, &r, rec, len);
- if(ctx->bKeepRecordHashes)
- tlvWriteHash(ctx, 0x0900, r);
- hash_node(ctx, &x, m, r, 1); /* hash leaf */
+ hash_m(gf, &m);
+ hash_r(gf, &r, rec, len);
+ if(gf->bKeepRecordHashes)
+ tlvWriteHash(gf, 0x0900, r);
+ hash_node(gf, &x, m, r, 1); /* hash leaf */
/* persists x here if Merkle tree needs to be persisted! */
- if(ctx->bKeepTreeHashes)
- tlvWriteHash(ctx, 0x0901, x);
+ if(gf->bKeepTreeHashes)
+ tlvWriteHash(gf, 0x0901, x);
/* add x to the forest as new leaf, update roots list */
t = x;
- for(j = 0 ; j < ctx->nRoots ; ++j) {
- if(ctx->roots_valid[j] == 0) {
- ctx->roots_hash[j] = t;
- ctx->roots_valid[j] = 1;
+ for(j = 0 ; j < gf->nRoots ; ++j) {
+ if(gf->roots_valid[j] == 0) {
+ gf->roots_hash[j] = t;
+ gf->roots_valid[j] = 1;
t = NULL;
break;
} else if(t != NULL) {
/* hash interim node */
- hash_node(ctx, &t, ctx->roots_hash[j], t, j+2);
- ctx->roots_valid[j] = 0;
- GTDataHash_free(ctx->roots_hash[j]);
+ hash_node(gf, &t, gf->roots_hash[j], t, j+2);
+ gf->roots_valid[j] = 0;
+ GTDataHash_free(gf->roots_hash[j]);
// TODO: check if this is correct location (paper!)
- if(ctx->bKeepTreeHashes)
- tlvWriteHash(ctx, 0x0901, t);
+ if(gf->bKeepTreeHashes)
+ tlvWriteHash(gf, 0x0901, t);
}
}
if(t != NULL) {
/* new level, append "at the top" */
- ctx->roots_hash[ctx->nRoots] = t;
- ctx->roots_valid[ctx->nRoots] = 1;
- ++ctx->nRoots;
- assert(ctx->nRoots < MAX_ROOTS);
+ gf->roots_hash[gf->nRoots] = t;
+ gf->roots_valid[gf->nRoots] = 1;
+ ++gf->nRoots;
+ assert(gf->nRoots < MAX_ROOTS);
t = NULL;
}
- ctx->x_prev = x; /* single var may be sufficient */
- ++ctx->nRecords;
+ gf->x_prev = x; /* single var may be sufficient */
+ ++gf->nRecords;
/* cleanup */
/* note: x is freed later as part of roots cleanup */
GTDataHash_free(m);
GTDataHash_free(r);
- if(ctx->nRecords == ctx->blockSizeLimit) {
- sigblkFinish(ctx);
- sigblkInit(ctx);
+ if(gf->nRecords == gf->blockSizeLimit) {
+ sigblkFinish(gf);
+ sigblkInit(gf);
}
}
static void
-timestampIt(gtctx ctx, GTDataHash *hash)
+timestampIt(gtfile gf, GTDataHash *hash)
{
unsigned char *der;
size_t lenDer;
@@ -586,7 +613,7 @@ timestampIt(gtctx ctx, GTDataHash *hash)
GTTimestamp *timestamp = NULL;
/* Get the timestamp. */
- r = GTHTTP_createTimestampHash(hash, ctx->timestamper, &timestamp);
+ r = GTHTTP_createTimestampHash(hash, gf->ctx->timestamper, &timestamp);
if(r != GT_OK) {
fprintf(stderr, "GTHTTP_createTimestampHash() failed: %d (%s)\n",
@@ -602,7 +629,7 @@ timestampIt(gtctx ctx, GTDataHash *hash)
goto done;
}
- tlvWriteBlockSig(ctx, der, lenDer);
+ tlvWriteBlockSig(gf, der, lenDer);
done:
GT_free(der);
@@ -611,32 +638,32 @@ done:
void
-sigblkFinish(gtctx ctx)
+sigblkFinish(gtfile gf)
{
GTDataHash *root, *rootDel;
int8_t j;
- if(ctx->nRecords == 0)
+ if(gf->nRecords == 0)
goto done;
root = NULL;
- for(j = 0 ; j < ctx->nRoots ; ++j) {
+ for(j = 0 ; j < gf->nRoots ; ++j) {
if(root == NULL) {
- root = ctx->roots_hash[j];
- ctx->roots_valid[j] = 0; /* guess this is redundant with init, maybe del */
- } else if(ctx->roots_valid[j]) {
+ root = gf->roots_hash[j];
+ gf->roots_valid[j] = 0; /* guess this is redundant with init, maybe del */
+ } else if(gf->roots_valid[j]) {
rootDel = root;
- hash_node(ctx, &root, ctx->roots_hash[j], root, j+2);
- ctx->roots_valid[j] = 0; /* guess this is redundant with init, maybe del */
+ hash_node(gf, &root, gf->roots_hash[j], root, j+2);
+ gf->roots_valid[j] = 0; /* guess this is redundant with init, maybe del */
GTDataHash_free(rootDel);
}
}
- timestampIt(ctx, root);
+ timestampIt(gf, root);
- free(ctx->blkStrtHash);
- ctx->lenBlkStrtHash = ctx->x_prev->digest_length;
- ctx->blkStrtHash = malloc(ctx->lenBlkStrtHash);
- memcpy(ctx->blkStrtHash, ctx->x_prev->digest, ctx->lenBlkStrtHash);
+ free(gf->blkStrtHash);
+ gf->lenBlkStrtHash = gf->x_prev->digest_length;
+ gf->blkStrtHash = malloc(gf->lenBlkStrtHash);
+ memcpy(gf->blkStrtHash, gf->x_prev->digest, gf->lenBlkStrtHash);
done:
- ctx->bInBlk = 0;
+ gf->bInBlk = 0;
}
diff --git a/runtime/librsgt.h b/runtime/librsgt.h
index a4ea7cc1..b2de73bd 100644
--- a/runtime/librsgt.h
+++ b/runtime/librsgt.h
@@ -30,17 +30,31 @@
#define MAX_ROOTS 64
#define LOGSIGHDR "LOGSIG10"
-/* context for gt calls. All state data is kept here, this permits
- * multiple concurrent callers.
+/* context for gt calls. This primarily serves as a container for the
+ * config settings. The actual file-specific data is kept in gtfile.
*/
struct gtctx_s {
enum GTHashAlgorithm hashAlg;
- uint8_t *IV; /* initial value for blinding masks (where to do we get it from?) */
- GTDataHash *x_prev; /* last leaf hash (maybe of previous block) --> preserve on term */
uint8_t bKeepRecordHashes;
uint8_t bKeepTreeHashes;
uint64_t blockSizeLimit;
char *timestamper;
+};
+typedef struct gtctx_s *gtctx;
+
+/* this describes a file, as far as librsgt is concerned */
+struct gtfile_s {
+ gtctx ctx;
+ /* the following data items are mirrored from gtctx to
+ * increase cache hit ratio (they are frequently accesed).
+ */
+ enum GTHashAlgorithm hashAlg;
+ uint8_t bKeepRecordHashes;
+ uint8_t bKeepTreeHashes;
+ /* end mirrored properties */
+ uint64_t blockSizeLimit;
+ uint8_t *IV; /* initial value for blinding masks */
+ GTDataHash *x_prev; /* last leaf hash (maybe of previous block) --> preserve on term */
unsigned char *sigfilename;
unsigned char *statefilename;
int fd;
@@ -54,11 +68,11 @@ struct gtctx_s {
*/
int8_t roots_valid[MAX_ROOTS];
GTDataHash *roots_hash[MAX_ROOTS];
- /* data mambers for the associated TLV file */
+ /* data members for the associated TLV file */
char tlvBuf[4096];
int tlvIdx; /* current index into tlvBuf */
};
-typedef struct gtctx_s *gtctx;
+typedef struct gtfile_s *gtfile;
typedef struct imprint_s imprint_t;
typedef struct block_sig_s block_sig_t;
@@ -201,12 +215,12 @@ int rsgtSetHashFunction(gtctx ctx, char *algName);
void rsgtInit(char *usragent);
void rsgtExit(void);
gtctx rsgtCtxNew(void);
-int rsgtCtxOpenFile(gtctx ctx, unsigned char *logfn);
+gtfile rsgtCtxOpenFile(gtctx ctx, unsigned char *logfn);
+void rsgtfileDestruct(gtfile gf);
void rsgtCtxDel(gtctx ctx);
-void sigblkInit(gtctx ctx);
-void sigblkAddRecord(gtctx ctx, const unsigned char *rec, const size_t len);
-void sigblkFinish(gtctx ctx);
-void rsgtCtxSetLogfileName(gtctx ctx, char *logfilename);
+void sigblkInit(gtfile gf);
+void sigblkAddRecord(gtfile gf, const unsigned char *rec, const size_t len);
+void sigblkFinish(gtfile gf);
/* reader functions */
int rsgt_tlvrdHeader(FILE *fp, unsigned char *hdr);
int rsgt_tlvrd(FILE *fp, uint16_t *tlvtype, uint16_t *tlvlen, void *obj);
diff --git a/runtime/lmsig_gt.c b/runtime/lmsig_gt.c
index 474c573f..021cd9f8 100644
--- a/runtime/lmsig_gt.c
+++ b/runtime/lmsig_gt.c
@@ -118,35 +118,34 @@ SetCnfParam(void *pT, struct nvlst *lst)
static rsRetVal
-OnFileOpen(void *pT, uchar *fn)
+OnFileOpen(void *pT, uchar *fn, gtfile *pgf)
{
lmsig_gt_t *pThis = (lmsig_gt_t*) pT;
DEFiRet;
dbgprintf("DDDD: onFileOpen: %s\n", fn);
- rsgtCtxOpenFile(pThis->ctx, fn);
- sigblkInit(pThis->ctx);
+
+ *pgf = rsgtCtxOpenFile(pThis->ctx, fn);
+ sigblkInit(*pgf);
RETiRet;
}
static rsRetVal
-OnRecordWrite(void *pT, uchar *rec, rs_size_t lenRec)
+OnRecordWrite(void *pF, uchar *rec, rs_size_t lenRec)
{
- lmsig_gt_t *pThis = (lmsig_gt_t*) pT;
DEFiRet;
dbgprintf("DDDD: onRecordWrite (%d): %s\n", lenRec, rec);
- sigblkAddRecord(pThis->ctx, rec, lenRec);
+ sigblkAddRecord(pF, rec, lenRec);
RETiRet;
}
static rsRetVal
-OnFileClose(void *pT)
+OnFileClose(void *pF)
{
- lmsig_gt_t *pThis = (lmsig_gt_t*) pT;
DEFiRet;
dbgprintf("DDDD: onFileClose\n");
- rsgtCtxDel(pThis->ctx);
+ rsgtfileDestruct(pF);
RETiRet;
}
diff --git a/runtime/sigprov.h b/runtime/sigprov.h
index 5abfb390..82587b7d 100644
--- a/runtime/sigprov.h
+++ b/runtime/sigprov.h
@@ -29,9 +29,9 @@ BEGINinterface(sigprov) /* name must also be changed in ENDinterface macro! */
rsRetVal (*Construct)(void *ppThis);
rsRetVal (*SetCnfParam)(void *ppThis, struct nvlst *lst);
rsRetVal (*Destruct)(void *ppThis);
- rsRetVal (*OnFileOpen)(void *pThis, uchar *fn);
- rsRetVal (*OnRecordWrite)(void *pThis, uchar *rec, rs_size_t lenRec);
- rsRetVal (*OnFileClose)(void *pThis);
+ rsRetVal (*OnFileOpen)(void *pThis, uchar *fn, void *pFileInstData);
+ rsRetVal (*OnRecordWrite)(void *pFileInstData, uchar *rec, rs_size_t lenRec);
+ rsRetVal (*OnFileClose)(void *pFileInstData);
ENDinterface(sigprov)
#define sigprovCURR_IF_VERSION 1 /* increment whenever you change the interface structure! */
#endif /* #ifndef INCLUDED_SIGPROV_H */
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-27 08:51:12 +0000