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Add SNI support to redbean and improve SSL perf

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This change makes SSL virtual hosting possible. You can now load
multiple certificates for multiple domains and redbean will just
figure out which one to use, even if you only have 1 ip address.
You can also use a jumbo certificate that lists all your domains
in the the subject alternative names.

This change also makes performance improvements to MbedTLS. Here
are some benchmarks vs. cc1920749e

                                   BEFORE    AFTER   (microsecs)
suite_ssl.com                     2512881   191738 13.11x faster
suite_pkparse.com                   36291     3295 11.01x faster
suite_x509parse.com                854669   120293  7.10x faster
suite_pkwrite.com                    6549     1265  5.18x faster
suite_ecdsa.com                     53347    18778  2.84x faster
suite_pk.com                        49051    18717  2.62x faster
suite_ecdh.com                      19535     9502  2.06x faster
suite_shax.com                      15848     7965  1.99x faster
suite_rsa.com                      353257   184828  1.91x faster
suite_x509write.com                162646    85733  1.90x faster
suite_ecp.com                       20503    11050  1.86x faster
suite_hmac_drbg.no_reseed.com       19528    11417  1.71x faster
suite_hmac_drbg.nopr.com            12460     8010  1.56x faster
suite_mpi.com                      687124   442661  1.55x faster
suite_hmac_drbg.pr.com              11890     7752  1.53x faster

There aren't any special tricks to the performance imporvements.
It's mostly due to code cleanup, assembly and intel instructions
like mulx, adox, and adcx.
This commit is contained in:
Justine Tunney 2021-07-19 14:55:20 -07:00
parent f3e28aa192
commit 398f0c16fb
190 changed files with 14367 additions and 8928 deletions
Download patch file Download diff file Expand all files Collapse all files

65
net/https/sslcache.c
View file

@ -19,17 +19,24 @@
#include "libc/bits/bits.h"
#include "libc/bits/safemacros.internal.h"
#include "libc/calls/calls.h"
#include "libc/calls/struct/stat.h"
#include "libc/errno.h"
#include "libc/log/check.h"
#include "libc/log/log.h"
#include "libc/macros.internal.h"
#include "libc/nexgen32e/rdtsc.h"
#include "libc/runtime/runtime.h"
#include "libc/str/str.h"
#include "libc/sysv/consts/map.h"
#include "libc/sysv/consts/o.h"
#include "libc/sysv/consts/prot.h"
#include "net/https/sslcache.h"
#include "third_party/mbedtls/ssl.h"
#include "third_party/mbedtls/x509_crt.h"
#define PROT (PROT_READ | PROT_WRITE)
#define FLAGS MAP_SHARED
static uint32_t HashSslSession(mbedtls_ssl_session *session) {
int i;
uint32_t h;
@ -44,16 +51,46 @@ static uint32_t HashSslSession(mbedtls_ssl_session *session) {
return h;
}
struct SslCache *CreateSslCache(size_t bytes, int lifetime) {
struct SslCache *c;
static struct SslCache *OpenSslCache(const char *path, size_t size) {
int fd;
struct stat st;
struct SslCache *c = NULL;
if (path) {
if ((fd = open(path, O_RDWR | O_CREAT, 0600)) != -1) {
CHECK_NE(-1, fstat(fd, &st));
if (st.st_size && st.st_size != size) {
WARNF("unlinking sslcache because size changed from %,zu to %,zu",
st.st_size, size);
unlink(path);
fd = open(path, O_RDWR | O_CREAT, 0600);
st.st_size = 0;
}
if (fd != -1) {
if (!st.st_size) CHECK_NE(-1, ftruncate(fd, size));
c = mmap(0, size, PROT, FLAGS, fd, 0);
close(fd);
}
} else {
WARNF("sslcache open(%`'s) failed %s", path, strerror(errno));
}
}
return c;
}
struct SslCache *CreateSslCache(const char *path, size_t bytes, int lifetime) {
size_t ents, size;
struct SslCache *c;
if (!bytes) bytes = 10 * 1024 * 1024;
if (lifetime <= 0) lifetime = 24 * 60 * 60;
ents = rounddown2pow(MAX(2, bytes / sizeof(struct SslCacheEntry)));
size = sizeof(struct SslCache) + sizeof(struct SslCacheEntry) * ents;
size = ROUNDUP(size, FRAMESIZE);
CHECK_NE(MAP_FAILED, (c = mmap(NULL, size, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS, -1, 0)));
VERBOSEF("ssl cache %,zu bytes with %,u slots", size, ents);
c->lifetime = lifetime > 0 ? lifetime : 24 * 60 * 60;
c = OpenSslCache(path, size);
if (!c) c = mmap(0, size, PROT, FLAGS | MAP_ANONYMOUS, -1, 0);
CHECK_NE(MAP_FAILED, c);
VERBOSEF("opened %`'s %,zu bytes with %,u slots",
c ? path : "anonymous shared memory", size, ents);
c->lifetime = lifetime;
c->size = size;
c->mask = ents - 1;
return c;
@ -72,6 +109,7 @@ int UncacheSslSession(void *data, mbedtls_ssl_session *session) {
mbedtls_x509_crt *cert;
struct SslCacheEntry *e;
uint32_t i, hash, ticketlen;
LOGF("uncache");
cache = data;
hash = HashSslSession(session);
i = hash & cache->mask;
@ -85,12 +123,12 @@ int UncacheSslSession(void *data, mbedtls_ssl_session *session) {
session->compression != e->session.compression ||
session->id_len != e->session.id_len ||
memcmp(session->id, e->session.id, e->session.id_len)) {
VERBOSEF("%u ssl cache collision", i);
VERBOSEF("%u sslcache collision", i);
return 1;
}
ts = time(0);
if (!(e->time <= ts && ts <= e->time + cache->lifetime)) {
DEBUGF("%u ssl cache expired", i);
DEBUGF("%u sslcache expired", i);
lockcmpxchg(&e->tick, tick, 0);
return 1;
}
@ -114,7 +152,7 @@ int UncacheSslSession(void *data, mbedtls_ssl_session *session) {
DEBUGF("%u restored ssl from cache", i);
return 0;
Contention:
WARNF("%u ssl cache contention 0x%08x", i, hash);
WARNF("%u sslcache contention 0x%08x", i, hash);
mbedtls_x509_crt_free(cert);
free(ticket);
free(cert);
@ -159,10 +197,13 @@ int CacheSslSession(void *data, const mbedtls_ssl_session *session) {
}
e->hash = hash;
e->time = time(0);
tick = unsignedsubtract(rdtsc(), kStartTsc);
tick = rdtsc();
asm volatile("" ::: "memory");
if (lockcmpxchg(&e->pid, pid, 0)) {
DEBUGF("%u saved", i);
if (tick && lockcmpxchg(&e->pid, pid, 0)) {
DEBUGF("%u saved %s%s %`#.*s", i,
mbedtls_ssl_get_ciphersuite_name(session->ciphersuite),
session->compression ? " DEFLATE" : "", session->id_len,
session->id);
e->tick = tick;
return 0;
} else {