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Add some debug logging.
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@ni4
ni4 committed Nov 13, 2023
1 parent 1f7759f commit 5b17190
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Showing 3 changed files with 50 additions and 0 deletions.
3 changes: 3 additions & 0 deletions src/lib/rnp.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -3132,14 +3132,17 @@ rnp_verify_dest_provider(pgp_parse_handler_t *handler,
const char * filename,
uint32_t mtime)
{
RNP_LOG("here");
rnp_op_verify_t op = (rnp_op_verify_t) handler->param;
if (!op->output) {
RNP_LOG("here");
return false;
}
*dst = &(op->output->dst);
*closedst = false;
op->filename = filename ? std::string(filename) : "";
op->file_mtime = mtime;
RNP_LOG("here");
return true;
}

Expand Down
7 changes: 7 additions & 0 deletions src/librepgp/stream-common.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -60,14 +60,17 @@ src_read(pgp_source_t *src, void *buf, size_t len, size_t *readres)
bool readahead = cache ? cache->readahead : false;

if (src->error) {
RNP_LOG("here");
return false;
}

if (src->eof || (len == 0)) {
*readres = 0;
RNP_LOG("here");
return true;
}

RNP_LOG("here");
// Do not read more then available if source size is known
if (src->knownsize && (src->readb + len > src->size)) {
len = src->size - src->readb;
Expand All @@ -92,10 +95,12 @@ src_read(pgp_source_t *src, void *buf, size_t len, size_t *readres)

// If we got here then we have empty cache or no cache at all
while (left > 0) {
RNP_LOG("here");
if (left > sizeof(cache->buf) || !readahead || !cache) {
// If there is no cache or chunk is larger then read directly
if (!src->read(src, buf, left, &read)) {
src->error = 1;
RNP_LOG("here");
return false;
}
if (!read) {
Expand All @@ -109,6 +114,7 @@ src_read(pgp_source_t *src, void *buf, size_t len, size_t *readres)
// Try to fill the cache to avoid small reads
if (!src->read(src, &cache->buf[0], sizeof(cache->buf), &read)) {
src->error = 1;
RNP_LOG("here");
return false;
}
if (!read) {
Expand All @@ -129,6 +135,7 @@ src_read(pgp_source_t *src, void *buf, size_t len, size_t *readres)
}

finish:
RNP_LOG("here");
src->readb += len;
if (src->knownsize && (src->readb == src->size)) {
src->eof = 1;
Expand Down
40 changes: 40 additions & 0 deletions src/librepgp/stream-parse.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -323,10 +323,13 @@ init_partial_pkt_src(pgp_source_t *src, pgp_source_t *readsrc, pgp_packet_hdr_t
static bool
literal_src_read(pgp_source_t *src, void *buf, size_t len, size_t *read)
{
RNP_LOG("here");
pgp_source_literal_param_t *param = (pgp_source_literal_param_t *) src->param;
if (!param) {
RNP_LOG("here");
return false;
}
RNP_LOG("here: %d", (int) param->pkt.readsrc->type);
return src_read(param->pkt.readsrc, buf, len, read);
}

Expand Down Expand Up @@ -704,28 +707,35 @@ encrypted_src_read_aead(pgp_source_t *src, void *buf, size_t len, size_t *read)
static bool
encrypted_src_read_cfb(pgp_source_t *src, void *buf, size_t len, size_t *readres)
{
RNP_LOG("here");
pgp_source_encrypted_param_t *param = (pgp_source_encrypted_param_t *) src->param;
if (param == NULL) {
RNP_LOG("here");
return false;
}

if (src->eof) {
*readres = 0;
RNP_LOG("here");
return true;
}

RNP_LOG("here");
size_t read;
if (!src_read(param->pkt.readsrc, buf, len, &read)) {
RNP_LOG("here");
return false;
}
if (!read) {
*readres = 0;
RNP_LOG("here");
return true;
}

bool parsemdc = false;
uint8_t mdcbuf[MDC_V1_SIZE];
if (param->auth_type == rnp::AuthType::MDC) {
RNP_LOG("here");
size_t mdcread = 0;
/* make sure there are always 22 bytes left on input */
if (!src_peek(param->pkt.readsrc, mdcbuf, MDC_V1_SIZE, &mdcread) ||
Expand All @@ -743,10 +753,13 @@ encrypted_src_read_cfb(pgp_source_t *src, void *buf, size_t len, size_t *readres
}
}

RNP_LOG("here");
pgp_cipher_cfb_decrypt(&param->decrypt, (uint8_t *) buf, (uint8_t *) buf, read);
RNP_LOG("here");

if (param->auth_type == rnp::AuthType::MDC) {
try {
RNP_LOG("here");
param->mdc->add(buf, read);

if (parsemdc) {
Expand Down Expand Up @@ -774,6 +787,7 @@ encrypted_src_read_cfb(pgp_source_t *src, void *buf, size_t len, size_t *readres
}
}
*readres = read;
RNP_LOG("here");
return true;
}

Expand Down Expand Up @@ -2338,6 +2352,7 @@ encrypted_read_packet_data(pgp_source_encrypted_param_t *param)
static rnp_result_t
init_encrypted_src(pgp_parse_handler_t *handler, pgp_source_t *src, pgp_source_t *readsrc)
{
RNP_LOG("here");
if (!init_src_common(src, 0)) {
return RNP_ERROR_OUT_OF_MEMORY;
}
Expand All @@ -2354,11 +2369,13 @@ init_encrypted_src(pgp_parse_handler_t *handler, pgp_source_t *src, pgp_source_t
src->type = PGP_STREAM_ENCRYPTED;

/* Read the packet-related information */
RNP_LOG("here");
rnp_result_t errcode = encrypted_read_packet_data(param);
if (errcode) {
goto finish;
}

RNP_LOG("here");
src->read = (!param->use_cfb()
#ifdef ENABLE_CRYPTO_REFRESH
|| param->is_v2_seipd()
Expand All @@ -2374,11 +2391,13 @@ init_encrypted_src(pgp_parse_handler_t *handler, pgp_source_t *src, pgp_source_t
goto finish;
}

RNP_LOG("here");
/* informing handler about the available pubencs/symencs */
if (handler->on_recipients) {
handler->on_recipients(param->pubencs, param->symencs, handler->param);
}

RNP_LOG("here");
bool have_key;
have_key = false;
/* Trying public-key decryption */
Expand Down Expand Up @@ -2456,15 +2475,19 @@ init_encrypted_src(pgp_parse_handler_t *handler, pgp_source_t *src, pgp_source_t

/* Trying password-based decryption */
if (!have_key && !param->symencs.empty()) {
RNP_LOG("here");
rnp::secure_array<char, MAX_PASSWORD_LENGTH> password;
pgp_password_ctx_t pass_ctx(PGP_OP_DECRYPT_SYM);
if (!pgp_request_password(
handler->password_provider, &pass_ctx, password.data(), password.size())) {
errcode = RNP_ERROR_BAD_PASSWORD;
RNP_LOG("here");
goto finish;
}

RNP_LOG("here");
int intres = encrypted_try_password(param, password.data());
RNP_LOG("here: %d", intres);
if (intres > 0) {
have_key = true;
} else if (intres < 0) {
Expand All @@ -2475,13 +2498,16 @@ init_encrypted_src(pgp_parse_handler_t *handler, pgp_source_t *src, pgp_source_t
}

/* report decryption start to the handler */
RNP_LOG("here");
if (handler->on_decryption_info) {
RNP_LOG("here");
handler->on_decryption_info(param->auth_type == rnp::AuthType::MDC,
param->aead_hdr.aalg,
param->salg,
handler->param);
}

RNP_LOG("here");
if (!have_key) {
RNP_LOG("failed to obtain decrypting key or password");
if (!errcode) {
Expand Down Expand Up @@ -2712,6 +2738,7 @@ init_packet_sequence(pgp_processing_ctx_t &ctx, pgp_source_t &src)
pgp_source_t *lsrc = &src;
size_t srcnum = ctx.sources.size();

RNP_LOG("here");
while (1) {
uint8_t ptag = 0;
if (!src_peek_eq(lsrc, &ptag, 1)) {
Expand Down Expand Up @@ -2848,6 +2875,7 @@ process_pgp_source(pgp_parse_handler_t *handler, pgp_source_t &src)
bool closeout = true;
uint8_t * readbuf = NULL;

RNP_LOG("here");
ctx.handler = *handler;
/* Building readers sequence. Checking whether it is binary data */
if (is_pgp_source(src)) {
Expand Down Expand Up @@ -2902,6 +2930,7 @@ process_pgp_source(pgp_parse_handler_t *handler, pgp_source_t &src)
}
src_close(&datasrc);
} else {
RNP_LOG("here");
if (handler->ctx->detached) {
RNP_LOG("Detached signature expected.");
res = RNP_ERROR_BAD_STATE;
Expand All @@ -2912,32 +2941,42 @@ process_pgp_source(pgp_parse_handler_t *handler, pgp_source_t &src)
char * filename = NULL;
uint32_t mtime = 0;

RNP_LOG("here");
if (ctx.literal_src) {
auto *param = static_cast<pgp_source_literal_param_t *>(ctx.literal_src->param);
filename = param->hdr.fname;
mtime = param->hdr.timestamp;
}

RNP_LOG("here: %s", filename);
if (!handler->dest_provider ||
!handler->dest_provider(handler, &outdest, &closeout, filename, mtime)) {
res = RNP_ERROR_WRITE;
RNP_LOG("here");
goto finish;
}

/* reading the input */
RNP_LOG("here: %p", decsrc);
RNP_LOG("here: %d", decsrc->eof);
RNP_LOG("here: %d", (int) decsrc->type);
while (!decsrc->eof) {
size_t read = 0;
RNP_LOG("here");
if (!src_read(decsrc, readbuf, PGP_INPUT_CACHE_SIZE, &read)) {
res = RNP_ERROR_GENERIC;
RNP_LOG("here");
break;
}
RNP_LOG("here: %zu", read);
if (!read) {
continue;
}
if (ctx.signed_src) {
signed_src_update(ctx.signed_src, readbuf, read);
}
dst_write(outdest, readbuf, read);
RNP_LOG("here");
if (outdest->werr != RNP_SUCCESS) {
RNP_LOG("failed to output data");
res = RNP_ERROR_WRITE;
Expand All @@ -2961,6 +3000,7 @@ process_pgp_source(pgp_parse_handler_t *handler, pgp_source_t &src)
}

finish:
RNP_LOG("here: %x", (int) res);
free(readbuf);
return res;
}

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