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noodle: behave like our other literal matchers

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Noodle now supports supplementary masks.
This commit is contained in:
Matthew Barr 2017-05-30 15:54:51 +10:00
parent 9c538a7522
commit 31a445a0e8
8 changed files with 307 additions and 232 deletions
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26
src/hwlm/hwlm.c
View File

@ -184,9 +184,9 @@ hwlm_error_t hwlmExec(const struct HWLM *t, const u8 *buf, size_t len,
if (t->type == HWLM_ENGINE_NOOD) {
DEBUG_PRINTF("calling noodExec\n");
return noodExec(HWLM_C_DATA(t), buf + start, len - start, start, cb,
ctxt);
} else {
return noodExec(HWLM_C_DATA(t), buf, len, start, cb, ctxt);
}
assert(t->type == HWLM_ENGINE_FDR);
const union AccelAux *aa = &t->accel0;
if ((groups & ~t->accel1_groups) == 0) {
@ -194,10 +194,8 @@ hwlm_error_t hwlmExec(const struct HWLM *t, const u8 *buf, size_t len,
aa = &t->accel1;
}
do_accel_block(aa, buf, len, &start);
DEBUG_PRINTF("calling frankie (groups=%08llx, start=%zu)\n", groups,
start);
DEBUG_PRINTF("calling frankie (groups=%08llx, start=%zu)\n", groups, start);
return fdrExec(HWLM_C_DATA(t), buf, len, start, cb, ctxt, groups);
}
}
hwlm_error_t hwlmExecStreaming(const struct HWLM *t, struct hs_scratch *scratch,
@ -224,23 +222,21 @@ hwlm_error_t hwlmExecStreaming(const struct HWLM *t, struct hs_scratch *scratch,
// If we've been handed a start offset, we can use a block mode scan at
// that offset.
if (start) {
return noodExec(HWLM_C_DATA(t), buf + start, len - start, start,
cb, ctxt);
return noodExec(HWLM_C_DATA(t), buf, len, start, cb, ctxt);
} else {
return noodExecStreaming(HWLM_C_DATA(t), hbuf, hlen, buf, len, cb,
ctxt);
}
} else {
// t->type == HWLM_ENGINE_FDR
}
assert(t->type == HWLM_ENGINE_FDR);
const union AccelAux *aa = &t->accel0;
if ((groups & ~t->accel1_groups) == 0) {
DEBUG_PRINTF("using hq accel %hhu\n", t->accel1.accel_type);
aa = &t->accel1;
}
do_accel_streaming(aa, hbuf, hlen, buf, len, &start);
DEBUG_PRINTF("calling frankie (groups=%08llx, start=%zu)\n", groups,
start);
return fdrExecStreaming(HWLM_C_DATA(t), hbuf, hlen, buf, len,
start, cb, ctxt, groups);
}
DEBUG_PRINTF("calling frankie (groups=%08llx, start=%zu)\n", groups, start);
return fdrExecStreaming(HWLM_C_DATA(t), hbuf, hlen, buf, len, start, cb,
ctxt, groups);
}

5
src/hwlm/hwlm_build.cpp
View File

@ -89,11 +89,6 @@ bool isNoodleable(const vector<hwlmLiteral> &lits,
return false;
}
if (!lits.front().msk.empty()) {
DEBUG_PRINTF("noodle can't handle supplementary masks\n");
return false;
}
return true;
}

87
src/hwlm/noodle_build.cpp
View File

@ -35,14 +35,33 @@
#include "hwlm_literal.h"
#include "noodle_internal.h"
#include "util/bitutils.h"
#include "util/compare.h"
#include "util/verify_types.h"
#include "ue2common.h"
#include <cstring> // for memcpy
#include <vector>
using std::vector;
namespace ue2 {
static
u64a make_u64a_mask(const vector<u8> &v) {
assert(v.size() <= sizeof(u64a));
if (v.size() > sizeof(u64a)) {
throw std::exception();
}
u64a mask = 0;
size_t len = v.size();
unsigned char *m = (unsigned char *)&mask;
DEBUG_PRINTF("making mask len %zu\n", len);
memcpy(m, &v[0], len);
return mask;
}
static
size_t findNoodFragOffset(const hwlmLiteral &lit) {
const auto &s = lit.s;
@ -67,30 +86,60 @@ size_t findNoodFragOffset(const hwlmLiteral &lit) {
}
bytecode_ptr<noodTable> noodBuildTable(const hwlmLiteral &lit) {
if (!lit.msk.empty()) {
DEBUG_PRINTF("noodle can't handle supplementary masks\n");
return nullptr;
const auto &s = lit.s;
size_t mask_len = std::max(s.length(), lit.msk.size());
DEBUG_PRINTF("mask is %zu bytes\n", lit.msk.size());
assert(mask_len <= 8);
assert(lit.msk.size() == lit.cmp.size());
vector<u8> n_msk(mask_len);
vector<u8> n_cmp(mask_len);
for (unsigned i = mask_len - lit.msk.size(), j = 0; i < mask_len;
i++, j++) {
DEBUG_PRINTF("m[%u] %hhx c[%u] %hhx\n", i, lit.msk[j], i, lit.cmp[j]);
n_msk[i] = lit.msk[j];
n_cmp[i] = lit.cmp[j];
}
const auto &s = lit.s;
size_t noodle_len = sizeof(noodTable) + s.length();
auto n = make_zeroed_bytecode_ptr<noodTable>(noodle_len);
size_t s_off = mask_len - s.length();
for (unsigned i = s_off; i < mask_len; i++) {
u8 c = s[i - s_off];
u8 si_msk = lit.nocase && ourisalpha(c) ? (u8)CASE_CLEAR : (u8)0xff;
n_msk[i] |= si_msk;
n_cmp[i] |= c & si_msk;
assert((n_cmp[i] & si_msk) == c);
DEBUG_PRINTF("m[%u] %hhx c[%u] %hhx '%c'\n", i, n_msk[i], i, n_cmp[i],
ourisprint(c) ? (char)c : '.');
}
auto n = make_zeroed_bytecode_ptr<noodTable>(sizeof(noodTable));
assert(n);
DEBUG_PRINTF("size of nood %zu\n", sizeof(noodTable));
size_t key_offset = findNoodFragOffset(lit);
n->id = lit.id;
n->len = verify_u32(s.length());
n->key_offset = verify_u32(key_offset);
n->lit_len = s.length();
n->single = s.length() == 1 ? 1 : 0;
n->key_offset = verify_u8(n->lit_len - key_offset);
n->nocase = lit.nocase ? 1 : 0;
memcpy(n->str, s.c_str(), s.length());
n->key0 = s[key_offset];
if (n->single) {
n->key1 = 0;
} else {
n->key1 = s[key_offset + 1];
}
n->msk = make_u64a_mask(n_msk);
n->cmp = make_u64a_mask(n_cmp);
n->msk_len = mask_len;
return n;
}
size_t noodSize(const noodTable *n) {
assert(n); // shouldn't call with null
return sizeof(*n) + n->len;
size_t noodSize(const noodTable *) {
return sizeof(noodTable);
}
} // namespace ue2
@ -102,13 +151,17 @@ namespace ue2 {
void noodPrintStats(const noodTable *n, FILE *f) {
fprintf(f, "Noodle table\n");
fprintf(f, "Len: %u Key Offset: %u\n", n->len, n->key_offset);
fprintf(f, "Len: %u Key Offset: %u\n", n->lit_len, n->key_offset);
fprintf(f, "Msk: %llx Cmp: %llx MskLen %u\n",
n->msk >> 8 * (8 - n->msk_len), n->cmp >> 8 * (8 - n->msk_len),
n->msk_len);
fprintf(f, "String: ");
for (u32 i = 0; i < n->len; i++) {
if (isgraph(n->str[i]) && n->str[i] != '\\') {
fprintf(f, "%c", n->str[i]);
for (u32 i = n->msk_len - n->lit_len; i < n->msk_len; i++) {
const u8 *m = (const u8 *)&n->cmp;
if (isgraph(m[i]) && m[i] != '\\') {
fprintf(f, "%c", m[i]);
} else {
fprintf(f, "\\x%02hhx", n->str[i]);
fprintf(f, "\\x%02hhx", m[i]);
}
}
fprintf(f, "\n");

240
src/hwlm/noodle_engine.c
View File

@ -85,8 +85,7 @@ struct cb_info {
Z_TYPE pos = JOIN(findAndClearLSB_, Z_BITS)(&z); \
size_t matchPos = d - buf + pos; \
DEBUG_PRINTF("match pos %zu\n", matchPos); \
hwlmcb_rv_t rv = final(buf, len, key, 1, 0, 0, noCase, cbi, \
matchPos); \
hwlmcb_rv_t rv = final(n, buf, len, 1, cbi, matchPos); \
RETURN_IF_TERMINATED(rv); \
} \
} while (0)
@ -97,8 +96,7 @@ struct cb_info {
Z_TYPE pos = JOIN(findAndClearLSB_, Z_BITS)(&z); \
size_t matchPos = d - buf + pos - 1; \
DEBUG_PRINTF("match pos %zu\n", matchPos); \
hwlmcb_rv_t rv = final(buf, len, key, keyLen, keyOffset, 1, \
noCase, cbi, matchPos); \
hwlmcb_rv_t rv = final(n, buf, len, 0, cbi, matchPos); \
RETURN_IF_TERMINATED(rv); \
} \
} while (0)
@ -112,21 +110,28 @@ u8 caseClear8(u8 x, bool noCase) {
// is used only for single chars with case insensitivity used correctly,
// so it can go straight to the callback if we get this far.
static really_inline
hwlm_error_t final(const u8 *buf, size_t len, const u8 *key, size_t keyLen,
size_t keyOffset, bool is_double, bool noCase,
const struct cb_info *cbi, size_t pos) {
pos -= keyOffset;
if (is_double) {
if (pos + keyLen > len) {
hwlm_error_t final(const struct noodTable *n, const u8 *buf, UNUSED size_t len,
char single, const struct cb_info *cbi, size_t pos) {
if (single) {
if (n->msk_len == 1) {
goto match;
}
}
assert(len >= n->msk_len);
u64a v =
partial_load_u64a(buf + pos + n->key_offset - n->msk_len, n->msk_len);
DEBUG_PRINTF("v %016llx msk %016llx cmp %016llx\n", v, n->msk, n->cmp);
if ((v & n->msk) != n->cmp) {
/* mask didn't match */
return HWLM_SUCCESS;
}
if (cmpForward(buf + pos, key, keyLen, noCase)) { // ret 1 on mismatch
return HWLM_SUCCESS;
}
}
pos += cbi->offsetAdj;
DEBUG_PRINTF("match @ %zu->%zu\n", pos, (pos + keyLen - 1));
hwlmcb_rv_t rv = cbi->cb(pos, (pos + keyLen - 1), cbi->id, cbi->ctx);
match:
pos -= cbi->offsetAdj;
DEBUG_PRINTF("match @ %zu->%zu\n", pos + n->key_offset - n->lit_len,
pos + n->key_offset);
hwlmcb_rv_t rv = cbi->cb(pos + n->key_offset - n->lit_len,
pos + n->key_offset - 1, cbi->id, cbi->ctx);
if (rv == HWLM_TERMINATE_MATCHING) {
return HWLM_TERMINATED;
}
@ -148,38 +153,43 @@ hwlm_error_t final(const u8 *buf, size_t len, const u8 *key, size_t keyLen,
#endif
static really_inline
hwlm_error_t scanSingleMain(const u8 *buf, size_t len, const u8 *key,
bool noCase, const struct cb_info *cbi) {
hwlm_error_t scanSingleMain(const struct noodTable *n, const u8 *buf,
size_t len, size_t start, bool noCase,
const struct cb_info *cbi) {
const MASK_TYPE mask1 = getMask(key[0], noCase);
const MASK_TYPE mask1 = getMask(n->key0, noCase);
const MASK_TYPE caseMask = getCaseMask();
size_t offset = start + n->msk_len - 1;
size_t end = len;
assert(offset < end);
#if !defined(HAVE_AVX512)
hwlm_error_t rv;
size_t end = len;
if (len < CHUNKSIZE) {
rv = scanSingleShort(buf, len, key, noCase, caseMask, mask1, cbi, 0, len);
if (end - offset < CHUNKSIZE) {
rv = scanSingleShort(n, buf, len, noCase, caseMask, mask1, cbi, offset,
end);
return rv;
}
if (len == CHUNKSIZE) {
rv = scanSingleUnaligned(buf, len, 0, key, noCase, caseMask, mask1, cbi,
0, len);
if (end - offset == CHUNKSIZE) {
rv = scanSingleUnaligned(n, buf, len, 0, noCase, caseMask, mask1, cbi,
offset, end);
return rv;
}
uintptr_t data = (uintptr_t)buf;
uintptr_t s2Start = ROUNDUP_N(data, CHUNKSIZE) - data;
uintptr_t s2Start = ROUNDUP_N(data + offset, CHUNKSIZE) - data;
uintptr_t last = data + end;
uintptr_t s2End = ROUNDDOWN_N(last, CHUNKSIZE) - data;
uintptr_t s3Start = len - CHUNKSIZE;
uintptr_t s3Start = end - CHUNKSIZE;
if (s2Start) {
if (offset != s2Start) {
// first scan out to the fast scan starting point
DEBUG_PRINTF("stage 1: -> %zu\n", s2Start);
rv = scanSingleUnaligned(buf, len, 0, key, noCase, caseMask, mask1, cbi,
0, s2Start);
rv = scanSingleUnaligned(n, buf, len, 0, noCase, caseMask, mask1, cbi,
offset, s2Start);
RETURN_IF_TERMINATED(rv);
}
@ -187,68 +197,70 @@ hwlm_error_t scanSingleMain(const u8 *buf, size_t len, const u8 *key,
// scan as far as we can, bounded by the last point this key can
// possibly match
DEBUG_PRINTF("fast: ~ %zu -> %zu\n", s2Start, s2End);
rv = scanSingleFast(buf, len, key, noCase, caseMask, mask1, cbi,
s2Start, s2End);
rv = scanSingleFast(n, buf, len, noCase, caseMask, mask1, cbi, s2Start,
s2End);
RETURN_IF_TERMINATED(rv);
}
// if we are done bail out
if (s2End == end) {
if (s2End == len) {
return HWLM_SUCCESS;
}
DEBUG_PRINTF("stage 3: %zu -> %zu\n", s2End, end);
rv = scanSingleUnaligned(buf, len, s3Start, key, noCase, caseMask, mask1,
cbi, s2End, end);
DEBUG_PRINTF("stage 3: %zu -> %zu\n", s2End, len);
rv = scanSingleUnaligned(n, buf, len, s3Start, noCase, caseMask, mask1, cbi,
s2End, len);
return rv;
#else // HAVE_AVX512
return scanSingle512(buf, len, key, noCase, caseMask, mask1, cbi);
return scanSingle512(n, buf, len, noCase, caseMask, mask1, cbi, offset,
end);
#endif
}
static really_inline
hwlm_error_t scanDoubleMain(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset, bool noCase,
hwlm_error_t scanDoubleMain(const struct noodTable *n, const u8 *buf,
size_t len, size_t start, bool noCase,
const struct cb_info *cbi) {
// we stop scanning for the key-fragment when the rest of the key can't
// possibly fit in the remaining buffer
size_t end = len - keyLen + keyOffset + 2;
size_t end = len - n->key_offset + 2;
// the first place the key can match
size_t offset = start + n->msk_len - n->key_offset;
const MASK_TYPE caseMask = getCaseMask();
const MASK_TYPE mask1 = getMask(key[keyOffset + 0], noCase);
const MASK_TYPE mask2 = getMask(key[keyOffset + 1], noCase);
const MASK_TYPE mask1 = getMask(n->key0, noCase);
const MASK_TYPE mask2 = getMask(n->key1, noCase);
#if !defined(HAVE_AVX512)
hwlm_error_t rv;
if (end - keyOffset < CHUNKSIZE) {
rv = scanDoubleShort(buf, len, key, keyLen, keyOffset, noCase, caseMask,
mask1, mask2, cbi, keyOffset, end);
if (end - offset < CHUNKSIZE) {
rv = scanDoubleShort(n, buf, len, noCase, caseMask, mask1, mask2, cbi,
offset, end);
return rv;
}
if (end - keyOffset == CHUNKSIZE) {
rv = scanDoubleUnaligned(buf, len, keyOffset, key, keyLen, keyOffset,
noCase, caseMask, mask1, mask2, cbi, keyOffset,
end);
if (end - offset == CHUNKSIZE) {
rv = scanDoubleUnaligned(n, buf, len, offset, noCase, caseMask, mask1,
mask2, cbi, offset, end);
return rv;
}
uintptr_t data = (uintptr_t)buf;
uintptr_t s2Start = ROUNDUP_N(data + keyOffset, CHUNKSIZE) - data;
uintptr_t s2Start = ROUNDUP_N(data + offset, CHUNKSIZE) - data;
uintptr_t s1End = s2Start + 1;
uintptr_t last = data + end;
uintptr_t s2End = ROUNDDOWN_N(last, CHUNKSIZE) - data;
uintptr_t s3Start = end - CHUNKSIZE;
uintptr_t off = keyOffset;
uintptr_t off = offset;
if (s2Start != keyOffset) {
if (s2Start != off) {
// first scan out to the fast scan starting point plus one char past to
// catch the key on the overlap
DEBUG_PRINTF("stage 1: -> %zu\n", s2Start);
rv = scanDoubleUnaligned(buf, len, keyOffset, key, keyLen, keyOffset,
noCase, caseMask, mask1, mask2, cbi, off,
s1End);
DEBUG_PRINTF("stage 1: %zu -> %zu\n", off, s2Start);
rv = scanDoubleUnaligned(n, buf, len, offset, noCase, caseMask, mask1,
mask2, cbi, off, s1End);
RETURN_IF_TERMINATED(rv);
}
off = s1End;
@ -262,8 +274,8 @@ hwlm_error_t scanDoubleMain(const u8 *buf, size_t len, const u8 *key,
// scan as far as we can, bounded by the last point this key can
// possibly match
DEBUG_PRINTF("fast: ~ %zu -> %zu\n", s2Start, s3Start);
rv = scanDoubleFast(buf, len, key, keyLen, keyOffset, noCase, caseMask,
mask1, mask2, cbi, s2Start, s2End);
rv = scanDoubleFast(n, buf, len, noCase, caseMask, mask1, mask2, cbi,
s2Start, s2End);
RETURN_IF_TERMINATED(rv);
off = s2End;
}
@ -274,98 +286,101 @@ hwlm_error_t scanDoubleMain(const u8 *buf, size_t len, const u8 *key,
}
DEBUG_PRINTF("stage 3: %zu -> %zu\n", s3Start, end);
rv = scanDoubleUnaligned(buf, len, s3Start, key, keyLen, keyOffset, noCase,
caseMask, mask1, mask2, cbi, off, end);
rv = scanDoubleUnaligned(n, buf, len, s3Start, noCase, caseMask, mask1,
mask2, cbi, off, end);
return rv;
#else // AVX512
return scanDouble512(buf, len, key, keyLen, keyOffset, noCase, caseMask,
mask1, mask2, cbi, keyOffset, end);
return scanDouble512(n, buf, len, noCase, caseMask, mask1, mask2, cbi,
offset, end);
#endif // AVX512
}
static really_inline
hwlm_error_t scanSingleNoCase(const u8 *buf, size_t len, const u8 *key,
hwlm_error_t scanSingleNoCase(const struct noodTable *n, const u8 *buf,
size_t len, size_t start,
const struct cb_info *cbi) {
return scanSingleMain(buf, len, key, 1, cbi);
return scanSingleMain(n, buf, len, start, 1, cbi);
}
static really_inline
hwlm_error_t scanSingleCase(const u8 *buf, size_t len, const u8 *key,
hwlm_error_t scanSingleCase(const struct noodTable *n, const u8 *buf,
size_t len, size_t start,
const struct cb_info *cbi) {
return scanSingleMain(buf, len, key, 0, cbi);
return scanSingleMain(n, buf, len, start, 0, cbi);
}
// Single-character specialisation, used when keyLen = 1
static really_inline
hwlm_error_t scanSingle(const u8 *buf, size_t len, const u8 *key, bool noCase,
const struct cb_info *cbi) {
if (!ourisalpha(key[0])) {
hwlm_error_t scanSingle(const struct noodTable *n, const u8 *buf, size_t len,
size_t start, bool noCase, const struct cb_info *cbi) {
if (!ourisalpha(n->key0)) {
noCase = 0; // force noCase off if we don't have an alphabetic char
}
// kinda ugly, but this forces constant propagation
if (noCase) {
return scanSingleNoCase(buf, len, key, cbi);
return scanSingleNoCase(n, buf, len, start, cbi);
} else {
return scanSingleCase(buf, len, key, cbi);
return scanSingleCase(n, buf, len, start, cbi);
}
}
static really_inline
hwlm_error_t scanDoubleNoCase(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset,
hwlm_error_t scanDoubleNoCase(const struct noodTable *n, const u8 *buf,
size_t len, size_t start,
const struct cb_info *cbi) {
return scanDoubleMain(buf, len, key, keyLen, keyOffset, 1, cbi);
return scanDoubleMain(n, buf, len, start, 1, cbi);
}
static really_inline
hwlm_error_t scanDoubleCase(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset,
hwlm_error_t scanDoubleCase(const struct noodTable *n, const u8 *buf,
size_t len, size_t start,
const struct cb_info *cbi) {
return scanDoubleMain(buf, len, key, keyLen, keyOffset, 0, cbi);
return scanDoubleMain(n, buf, len, start, 0, cbi);
}
static really_inline
hwlm_error_t scanDouble(const u8 *buf, size_t len, const u8 *key, size_t keyLen,
size_t keyOffset, bool noCase,
const struct cb_info *cbi) {
hwlm_error_t scanDouble(const struct noodTable *n, const u8 *buf, size_t len,
size_t start, bool noCase, const struct cb_info *cbi) {
// kinda ugly, but this forces constant propagation
if (noCase) {
return scanDoubleNoCase(buf, len, key, keyLen, keyOffset, cbi);
return scanDoubleNoCase(n, buf, len, start, cbi);
} else {
return scanDoubleCase(buf, len, key, keyLen, keyOffset, cbi);
return scanDoubleCase(n, buf, len, start, cbi);
}
}
// main entry point for the scan code
static really_inline
hwlm_error_t scan(const u8 *buf, size_t len, const u8 *key, size_t keyLen,
size_t keyOffset, bool noCase, const struct cb_info *cbi) {
if (len < keyLen) {
hwlm_error_t scan(const struct noodTable *n, const u8 *buf, size_t len,
size_t start, char single, bool noCase,
const struct cb_info *cbi) {
if (len - start < n->msk_len) {
// can't find string of length keyLen in a shorter buffer
return HWLM_SUCCESS;
}
if (keyLen == 1) {
assert(keyOffset == 0);
return scanSingle(buf, len, key, noCase, cbi);
if (single) {
return scanSingle(n, buf, len, start, noCase, cbi);
} else {
return scanDouble(buf, len, key, keyLen, keyOffset, noCase, cbi);
return scanDouble(n, buf, len, start, noCase, cbi);
}
}
/** \brief Block-mode scanner. */
hwlm_error_t noodExec(const struct noodTable *n, const u8 *buf, size_t len,
size_t offset_adj, HWLMCallback cb, void *ctxt) {
size_t start, HWLMCallback cb, void *ctxt) {
assert(n && buf);
struct cb_info cbi = { cb, n->id, ctxt, offset_adj };
DEBUG_PRINTF("nood scan of %zu bytes for %*s\n", len, n->len, n->str);
return scan(buf, len, n->str, n->len, n->key_offset, n->nocase, &cbi);
struct cb_info cbi = {cb, n->id, ctxt, 0};
DEBUG_PRINTF("nood scan of %zu bytes for %*s @ %p\n", len, n->lit_len,
(const char *)&n->cmp + n->msk_len - n->lit_len, buf);
return scan(n, buf, len, start, n->single, n->nocase, &cbi);
}
/** \brief Streaming-mode scanner. */
@ -375,34 +390,49 @@ hwlm_error_t noodExecStreaming(const struct noodTable *n, const u8 *hbuf,
assert(n);
struct cb_info cbi = {cb, n->id, ctxt, 0};
hwlm_error_t rv;
DEBUG_PRINTF("nood scan of %zu bytes (%zu hlen) for %*s @ %p\n", len, hlen,
n->lit_len, (const char *)&n->cmp + n->msk_len - n->lit_len,
buf);
if (hlen) {
/*
* we have history, so build up a buffer from enough of the history
* buffer plus what we've been given to scan. Since this is relatively
* short, just check against msk+cmp per byte offset for matches.
*/
assert(hbuf);
u8 ALIGN_DIRECTIVE temp_buf[HWLM_LITERAL_MAX_LEN * 2];
memset(temp_buf, 0, sizeof(temp_buf));
size_t tl1 = MIN(n->len - 1, hlen);
size_t tl2 = MIN(n->len - 1, len);
size_t temp_len = tl1 + tl2;
assert(temp_len < sizeof(temp_buf));
assert(n->msk_len);
size_t tl1 = MIN((size_t)n->msk_len - 1, hlen);
size_t tl2 = MIN((size_t)n->msk_len - 1, len);
assert(tl1 + tl2 <= sizeof(temp_buf));
assert(tl1 <= sizeof(u64a));
assert(tl2 <= sizeof(u64a));
DEBUG_PRINTF("using %zu bytes of hist and %zu bytes of buf\n", tl1, tl2);
unaligned_store_u64a(temp_buf,
partial_load_u64a(hbuf + hlen - tl1, tl1));
unaligned_store_u64a(temp_buf + tl1, partial_load_u64a(buf, tl2));
cbi.offsetAdj = -tl1;
rv = scan(temp_buf, temp_len, n->str, n->len, n->key_offset, n->nocase,
&cbi);
if (rv == HWLM_TERMINATED) {
for (size_t i = 0; i < tl1; i++) {
u64a v = unaligned_load_u64a(temp_buf + i);
if ((v & n->msk) == n->cmp) {
size_t m_end = -tl1 + i + n->msk_len - 1;
size_t m_start = m_end - n->lit_len;
DEBUG_PRINTF("match @ %zu->%zu (i %zu)\n", m_start, m_end, i);
hwlmcb_rv_t rv = cb(m_start, m_end, n->id, ctxt);
if (rv == HWLM_TERMINATE_MATCHING) {
return HWLM_TERMINATED;
}
}
}
}
assert(buf);
cbi.offsetAdj = 0;
return scan(buf, len, n->str, n->len, n->key_offset, n->nocase, &cbi);
return scan(n, buf, len, 0, n->single, n->nocase, &cbi);
}

43
src/hwlm/noodle_engine_avx2.c
View File

@ -38,10 +38,11 @@ static really_inline m256 getCaseMask(void) {
}
static really_inline
hwlm_error_t scanSingleUnaligned(const u8 *buf, size_t len, size_t offset,
const u8 *key, bool noCase, m256 caseMask,
m256 mask1, const struct cb_info *cbi,
size_t start, size_t end) {
hwlm_error_t scanSingleUnaligned(const struct noodTable *n, const u8 *buf,
size_t len, size_t offset, bool noCase,
m256 caseMask, m256 mask1,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + offset;
DEBUG_PRINTF("start %zu end %zu offset %zu\n", start, end, offset);
const size_t l = end - start;
@ -66,11 +67,11 @@ hwlm_error_t scanSingleUnaligned(const u8 *buf, size_t len, size_t offset,
}
static really_inline
hwlm_error_t scanDoubleUnaligned(const u8 *buf, size_t len, size_t offset,
const u8 *key, size_t keyLen, size_t keyOffset,
bool noCase, m256 caseMask, m256 mask1,
m256 mask2, const struct cb_info *cbi,
size_t start, size_t end) {
hwlm_error_t scanDoubleUnaligned(const struct noodTable *n, const u8 *buf,
size_t len, size_t offset, bool noCase,
m256 caseMask, m256 mask1, m256 mask2,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + offset;
DEBUG_PRINTF("start %zu end %zu offset %zu\n", start, end, offset);
size_t l = end - start;
@ -100,8 +101,8 @@ hwlm_error_t scanDoubleUnaligned(const u8 *buf, size_t len, size_t offset,
// alignment boundary if needed and to finish off data that the aligned scan
// function can't handle (due to small/unaligned chunk at end)
static really_inline
hwlm_error_t scanSingleShort(const u8 *buf, size_t len, const u8 *key,
bool noCase, m256 caseMask, m256 mask1,
hwlm_error_t scanSingleShort(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m256 caseMask, m256 mask1,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start;
@ -140,11 +141,10 @@ hwlm_error_t scanSingleShort(const u8 *buf, size_t len, const u8 *key,
}
static really_inline
hwlm_error_t scanDoubleShort(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset, bool noCase,
m256 caseMask, m256 mask1, m256 mask2,
const struct cb_info *cbi, size_t start,
size_t end) {
hwlm_error_t scanDoubleShort(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m256 caseMask, m256 mask1,
m256 mask2, const struct cb_info *cbi,
size_t start, size_t end) {
const u8 *d = buf + start;
size_t l = end - start;
if (!l) {
@ -182,8 +182,8 @@ hwlm_error_t scanDoubleShort(const u8 *buf, size_t len, const u8 *key,
}
static really_inline
hwlm_error_t scanSingleFast(const u8 *buf, size_t len, const u8 *key,
bool noCase, m256 caseMask, m256 mask1,
hwlm_error_t scanSingleFast(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m256 caseMask, m256 mask1,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start, *e = buf + end;
@ -203,10 +203,9 @@ hwlm_error_t scanSingleFast(const u8 *buf, size_t len, const u8 *key,
}
static really_inline
hwlm_error_t scanDoubleFast(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset, bool noCase,
m256 caseMask, m256 mask1, m256 mask2,
const struct cb_info *cbi, size_t start,
hwlm_error_t scanDoubleFast(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m256 caseMask, m256 mask1,
m256 mask2, const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start, *e = buf + end;
DEBUG_PRINTF("start %zu end %zu \n", start, end);

42
src/hwlm/noodle_engine_avx512.c
View File

@ -43,8 +43,8 @@ m512 getCaseMask(void) {
// alignment boundary if needed and to finish off data that the aligned scan
// function can't handle (due to small/unaligned chunk at end)
static really_inline
hwlm_error_t scanSingleShort(const u8 *buf, size_t len, const u8 *key,
bool noCase, m512 caseMask, m512 mask1,
hwlm_error_t scanSingleShort(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m512 caseMask, m512 mask1,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start;
@ -73,11 +73,12 @@ hwlm_error_t scanSingleShort(const u8 *buf, size_t len, const u8 *key,
}
static really_inline
hwlm_error_t scanSingle512(const u8 *buf, size_t len, const u8 *key,
hwlm_error_t scanSingle512(const struct noodTable *n, const u8 *buf, size_t len,
bool noCase, m512 caseMask, m512 mask1,
const struct cb_info *cbi) {
const u8 *d = buf;
const u8 *e = buf + len;
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start;
const u8 *e = buf + end;
DEBUG_PRINTF("start %p end %p \n", d, e);
assert(d < e);
if (d + 64 >= e) {
@ -86,8 +87,8 @@ hwlm_error_t scanSingle512(const u8 *buf, size_t len, const u8 *key,
// peel off first part to cacheline boundary
const u8 *d1 = ROUNDUP_PTR(d, 64);
if (scanSingleShort(buf, len, key, noCase, caseMask, mask1, cbi, 0,
d1 - d) == HWLM_TERMINATED) {
if (scanSingleShort(n, buf, len, noCase, caseMask, mask1, cbi, start,
d1 - buf) == HWLM_TERMINATED) {
return HWLM_TERMINATED;
}
d = d1;
@ -106,16 +107,15 @@ tail:
DEBUG_PRINTF("d %p e %p \n", d, e);
// finish off tail
return scanSingleShort(buf, len, key, noCase, caseMask, mask1, cbi, d - buf,
return scanSingleShort(n, buf, len, noCase, caseMask, mask1, cbi, d - buf,
e - buf);
}
static really_inline
hwlm_error_t scanDoubleShort(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset, bool noCase,
m512 caseMask, m512 mask1, m512 mask2,
const struct cb_info *cbi, u64a *lastz0,
size_t start, size_t end) {
hwlm_error_t scanDoubleShort(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m512 caseMask, m512 mask1,
m512 mask2, const struct cb_info *cbi,
u64a *lastz0, size_t start, size_t end) {
DEBUG_PRINTF("start %zu end %zu last 0x%016llx\n", start, end, *lastz0);
const u8 *d = buf + start;
ptrdiff_t scan_len = end - start;
@ -142,9 +142,8 @@ hwlm_error_t scanDoubleShort(const u8 *buf, size_t len, const u8 *key,
}
static really_inline
hwlm_error_t scanDouble512(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset, bool noCase,
m512 caseMask, m512 mask1, m512 mask2,
hwlm_error_t scanDouble512(const struct noodTable *n, const u8 *buf, size_t len,
bool noCase, m512 caseMask, m512 mask1, m512 mask2,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start;
@ -158,9 +157,8 @@ hwlm_error_t scanDouble512(const u8 *buf, size_t len, const u8 *key,
// peel off first part to cacheline boundary
const u8 *d1 = ROUNDUP_PTR(d, 64);
if (scanDoubleShort(buf, len, key, keyLen, keyOffset, noCase, caseMask,
mask1, mask2, cbi, &lastz0, start,
d1 - buf) == HWLM_TERMINATED) {
if (scanDoubleShort(n, buf, len, noCase, caseMask, mask1, mask2, cbi,
&lastz0, start, d1 - buf) == HWLM_TERMINATED) {
return HWLM_TERMINATED;
}
d = d1;
@ -188,6 +186,6 @@ tail:
DEBUG_PRINTF("d %p e %p off %zu \n", d, e, d - buf);
// finish off tail
return scanDoubleShort(buf, len, key, keyLen, keyOffset, noCase, caseMask,
mask1, mask2, cbi, &lastz0, d - buf, end);
return scanDoubleShort(n, buf, len, noCase, caseMask, mask1, mask2, cbi,
&lastz0, d - buf, end);
}

45
src/hwlm/noodle_engine_sse.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015-2016, Intel Corporation
* Copyright (c) 2015-2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@ -38,8 +38,8 @@ static really_inline m128 getCaseMask(void) {
}
static really_inline
hwlm_error_t scanSingleShort(const u8 *buf, size_t len, const u8 *key,
bool noCase, m128 caseMask, m128 mask1,
hwlm_error_t scanSingleShort(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m128 caseMask, m128 mask1,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start;
@ -67,10 +67,11 @@ hwlm_error_t scanSingleShort(const u8 *buf, size_t len, const u8 *key,
}
static really_inline
hwlm_error_t scanSingleUnaligned(const u8 *buf, size_t len, size_t offset,
const u8 *key, bool noCase, m128 caseMask,
m128 mask1, const struct cb_info *cbi,
size_t start, size_t end) {
hwlm_error_t scanSingleUnaligned(const struct noodTable *n, const u8 *buf,
size_t len, size_t offset, bool noCase,
m128 caseMask, m128 mask1,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + offset;
DEBUG_PRINTF("start %zu end %zu offset %zu\n", start, end, offset);
const size_t l = end - start;
@ -96,11 +97,10 @@ hwlm_error_t scanSingleUnaligned(const u8 *buf, size_t len, size_t offset,
}
static really_inline
hwlm_error_t scanDoubleShort(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset, bool noCase,
m128 caseMask, m128 mask1, m128 mask2,
const struct cb_info *cbi, size_t start,
size_t end) {
hwlm_error_t scanDoubleShort(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m128 caseMask, m128 mask1,
m128 mask2, const struct cb_info *cbi,
size_t start, size_t end) {
const u8 *d = buf + start;
size_t l = end - start;
if (!l) {
@ -128,11 +128,11 @@ hwlm_error_t scanDoubleShort(const u8 *buf, size_t len, const u8 *key,
}
static really_inline
hwlm_error_t scanDoubleUnaligned(const u8 *buf, size_t len, size_t offset,
const u8 *key, size_t keyLen, size_t keyOffset,
bool noCase, m128 caseMask, m128 mask1,
m128 mask2, const struct cb_info *cbi,
size_t start, size_t end) {
hwlm_error_t scanDoubleUnaligned(const struct noodTable *n, const u8 *buf,
size_t len, size_t offset, bool noCase,
m128 caseMask, m128 mask1, m128 mask2,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + offset;
DEBUG_PRINTF("start %zu end %zu offset %zu\n", start, end, offset);
size_t l = end - start;
@ -158,8 +158,8 @@ hwlm_error_t scanDoubleUnaligned(const u8 *buf, size_t len, size_t offset,
}
static really_inline
hwlm_error_t scanSingleFast(const u8 *buf, size_t len, const u8 *key,
bool noCase, m128 caseMask, m128 mask1,
hwlm_error_t scanSingleFast(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m128 caseMask, m128 mask1,
const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start, *e = buf + end;
@ -179,10 +179,9 @@ hwlm_error_t scanSingleFast(const u8 *buf, size_t len, const u8 *key,
}
static really_inline
hwlm_error_t scanDoubleFast(const u8 *buf, size_t len, const u8 *key,
size_t keyLen, size_t keyOffset, bool noCase,
m128 caseMask, m128 mask1, m128 mask2,
const struct cb_info *cbi, size_t start,
hwlm_error_t scanDoubleFast(const struct noodTable *n, const u8 *buf,
size_t len, bool noCase, m128 caseMask, m128 mask1,
m128 mask2, const struct cb_info *cbi, size_t start,
size_t end) {
const u8 *d = buf + start, *e = buf + end;
assert(d < e);

19
src/hwlm/noodle_internal.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Intel Corporation
* Copyright (c) 2015-2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@ -30,18 +30,23 @@
* \brief Data structures for Noodle literal matcher engine.
*/
#ifndef NOODLE_INTERNAL_H_25D751C42E34A6
#define NOODLE_INTERNAL_H_25D751C42E34A6
#ifndef NOODLE_INTERNAL_H
#define NOODLE_INTERNAL_H
#include "ue2common.h"
struct noodTable {
u32 id;
u32 len;
u32 key_offset;
u64a msk;
u64a cmp;
u8 lit_len;
u8 msk_len;
u8 key_offset;
u8 nocase;
u8 str[];
u8 single;
u8 key0;
u8 key1;
};
#endif /* NOODLE_INTERNAL_H_25D751C42E34A6 */
#endif /* NOODLE_INTERNAL_H */