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haproxy/src/ssl_ckch.c
William Lallemand 6a66a5ec9b REORG: ssl: move utility functions to src/ssl_utils.c 
These functions are mainly used to extract information from
certificates.
2020-05-15 14:11:54 +02:00

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/*
*
* Copyright (C) 2020 HAProxy Technologies, William Lallemand <wlallemand@haproxy.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#define _GNU_SOURCE
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <common/base64.h>
#include <common/errors.h>
#include <common/standard.h>
#include <ebsttree.h>
#include <types/cli.h>
#include <types/ssl_ckch.h>
#include <types/ssl_sock.h>
#include <proto/cli.h>
#include <proto/channel.h>
#include <proto/ssl_ckch.h>
#include <proto/ssl_sock.h>
#include <proto/ssl_utils.h>
#include <proto/stream_interface.h>
/* Uncommitted CKCH transaction */
static struct {
struct ckch_store *new_ckchs;
struct ckch_store *old_ckchs;
char *path;
} ckchs_transaction;
/******************** cert_key_and_chain functions *************************
* These are the functions that fills a cert_key_and_chain structure. For the
* functions filling a SSL_CTX from a cert_key_and_chain, see ssl_sock.c
*/
/*
* Try to parse Signed Certificate Timestamp List structure. This function
* makes only basic test if the data seems like SCTL. No signature validation
* is performed.
*/
static int ssl_sock_parse_sctl(struct buffer *sctl)
{
int ret = 1;
int len, pos, sct_len;
unsigned char *data;
if (sctl->data < 2)
goto out;
data = (unsigned char *) sctl->area;
len = (data[0] << 8) | data[1];
if (len + 2 != sctl->data)
goto out;
data = data + 2;
pos = 0;
while (pos < len) {
if (len - pos < 2)
goto out;
sct_len = (data[pos] << 8) | data[pos + 1];
if (pos + sct_len + 2 > len)
goto out;
pos += sct_len + 2;
}
ret = 0;
out:
return ret;
}
/* Try to load a sctl from a buffer <buf> if not NULL, or read the file <sctl_path>
* It fills the ckch->sctl buffer
* return 0 on success or != 0 on failure */
int ssl_sock_load_sctl_from_file(const char *sctl_path, char *buf, struct cert_key_and_chain *ckch, char **err)
{
int fd = -1;
int r = 0;
int ret = 1;
struct buffer tmp;
struct buffer *src;
struct buffer *sctl;
if (buf) {
tmp.area = buf;
tmp.data = strlen(buf);
tmp.size = tmp.data + 1;
src = &tmp;
} else {
fd = open(sctl_path, O_RDONLY);
if (fd == -1)
goto end;
trash.data = 0;
while (trash.data < trash.size) {
r = read(fd, trash.area + trash.data, trash.size - trash.data);
if (r < 0) {
if (errno == EINTR)
continue;
goto end;
}
else if (r == 0) {
break;
}
trash.data += r;
}
src = &trash;
}
ret = ssl_sock_parse_sctl(src);
if (ret)
goto end;
sctl = calloc(1, sizeof(*sctl));
if (!chunk_dup(sctl, src)) {
free(sctl);
sctl = NULL;
goto end;
}
/* no error, fill ckch with new context, old context must be free */
if (ckch->sctl) {
free(ckch->sctl->area);
ckch->sctl->area = NULL;
free(ckch->sctl);
}
ckch->sctl = sctl;
ret = 0;
end:
if (fd != -1)
close(fd);
return ret;
}
#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) || defined OPENSSL_IS_BORINGSSL)
/*
* This function load the OCSP Resonse in DER format contained in file at
* path 'ocsp_path' or base64 in a buffer <buf>
*
* Returns 0 on success, 1 in error case.
*/
int ssl_sock_load_ocsp_response_from_file(const char *ocsp_path, char *buf, struct cert_key_and_chain *ckch, char **err)
{
int fd = -1;
int r = 0;
int ret = 1;
struct buffer *ocsp_response;
struct buffer *src = NULL;
if (buf) {
int i, j;
/* if it's from a buffer it will be base64 */
/* remove \r and \n from the payload */
for (i = 0, j = 0; buf[i]; i++) {
if (buf[i] == '\r' || buf[i] == '\n')
continue;
buf[j++] = buf[i];
}
buf[j] = 0;
ret = base64dec(buf, j, trash.area, trash.size);
if (ret < 0) {
memprintf(err, "Error reading OCSP response in base64 format");
goto end;
}
trash.data = ret;
src = &trash;
} else {
fd = open(ocsp_path, O_RDONLY);
if (fd == -1) {
memprintf(err, "Error opening OCSP response file");
goto end;
}
trash.data = 0;
while (trash.data < trash.size) {
r = read(fd, trash.area + trash.data, trash.size - trash.data);
if (r < 0) {
if (errno == EINTR)
continue;
memprintf(err, "Error reading OCSP response from file");
goto end;
}
else if (r == 0) {
break;
}
trash.data += r;
}
close(fd);
fd = -1;
src = &trash;
}
ocsp_response = calloc(1, sizeof(*ocsp_response));
if (!chunk_dup(ocsp_response, src)) {
free(ocsp_response);
ocsp_response = NULL;
goto end;
}
/* no error, fill ckch with new context, old context must be free */
if (ckch->ocsp_response) {
free(ckch->ocsp_response->area);
ckch->ocsp_response->area = NULL;
free(ckch->ocsp_response);
}
ckch->ocsp_response = ocsp_response;
ret = 0;
end:
if (fd != -1)
close(fd);
return ret;
}
#endif
/*
* Try to load in a ckch every files related to a ckch.
* (PEM, sctl, ocsp, issuer etc.)
*
* This function is only used to load files during the configuration parsing,
* it is not used with the CLI.
*
* This allows us to carry the contents of the file without having to read the
* file multiple times. The caller must call
* ssl_sock_free_cert_key_and_chain_contents.
*
* returns:
* 0 on Success
* 1 on SSL Failure
*/
int ssl_sock_load_files_into_ckch(const char *path, struct cert_key_and_chain *ckch, char **err)
{
int ret = 1;
/* try to load the PEM */
if (ssl_sock_load_pem_into_ckch(path, NULL, ckch , err) != 0) {
goto end;
}
/* try to load an external private key if it wasn't in the PEM */
if ((ckch->key == NULL) && (global_ssl.extra_files & SSL_GF_KEY)) {
char fp[MAXPATHLEN+1];
struct stat st;
snprintf(fp, MAXPATHLEN+1, "%s.key", path);
if (stat(fp, &st) == 0) {
if (ssl_sock_load_key_into_ckch(fp, NULL, ckch, err)) {
memprintf(err, "%s '%s' is present but cannot be read or parsed'.\n",
err && *err ? *err : "", fp);
goto end;
}
}
}
if (ckch->key == NULL) {
memprintf(err, "%sNo Private Key found in '%s' or '%s.key'.\n", err && *err ? *err : "", path, path);
goto end;
}
if (!X509_check_private_key(ckch->cert, ckch->key)) {
memprintf(err, "%sinconsistencies between private key and certificate loaded '%s'.\n",
err && *err ? *err : "", path);
goto end;
}
#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
/* try to load the sctl file */
if (global_ssl.extra_files & SSL_GF_SCTL) {
char fp[MAXPATHLEN+1];
struct stat st;
snprintf(fp, MAXPATHLEN+1, "%s.sctl", path);
if (stat(fp, &st) == 0) {
if (ssl_sock_load_sctl_from_file(fp, NULL, ckch, err)) {
memprintf(err, "%s '%s.sctl' is present but cannot be read or parsed'.\n",
err && *err ? *err : "", fp);
ret = 1;
goto end;
}
}
}
#endif
/* try to load an ocsp response file */
if (global_ssl.extra_files & SSL_GF_OCSP) {
char fp[MAXPATHLEN+1];
struct stat st;
snprintf(fp, MAXPATHLEN+1, "%s.ocsp", path);
if (stat(fp, &st) == 0) {
if (ssl_sock_load_ocsp_response_from_file(fp, NULL, ckch, err)) {
ret = 1;
goto end;
}
}
}
#ifndef OPENSSL_IS_BORINGSSL /* Useless for BoringSSL */
if (ckch->ocsp_response && (global_ssl.extra_files & SSL_GF_OCSP_ISSUER)) {
/* if no issuer was found, try to load an issuer from the .issuer */
if (!ckch->ocsp_issuer) {
struct stat st;
char fp[MAXPATHLEN+1];
snprintf(fp, MAXPATHLEN+1, "%s.issuer", path);
if (stat(fp, &st) == 0) {
if (ssl_sock_load_issuer_file_into_ckch(fp, NULL, ckch, err)) {
ret = 1;
goto end;
}
if (X509_check_issued(ckch->ocsp_issuer, ckch->cert) != X509_V_OK) {
memprintf(err, "%s '%s' is not an issuer'.\n",
err && *err ? *err : "", fp);
ret = 1;
goto end;
}
}
}
}
#endif
ret = 0;
end:
ERR_clear_error();
/* Something went wrong in one of the reads */
if (ret != 0)
ssl_sock_free_cert_key_and_chain_contents(ckch);
return ret;
}
/*
* Try to load a private key file from a <path> or a buffer <buf>
*
* If it failed you should not attempt to use the ckch but free it.
*
* Return 0 on success or != 0 on failure
*/
int ssl_sock_load_key_into_ckch(const char *path, char *buf, struct cert_key_and_chain *ckch , char **err)
{
BIO *in = NULL;
int ret = 1;
EVP_PKEY *key = NULL;
if (buf) {
/* reading from a buffer */
in = BIO_new_mem_buf(buf, -1);
if (in == NULL) {
memprintf(err, "%sCan't allocate memory\n", err && *err ? *err : "");
goto end;
}
} else {
/* reading from a file */
in = BIO_new(BIO_s_file());
if (in == NULL)
goto end;
if (BIO_read_filename(in, path) <= 0)
goto end;
}
/* Read Private Key */
key = PEM_read_bio_PrivateKey(in, NULL, NULL, NULL);
if (key == NULL) {
memprintf(err, "%sunable to load private key from file '%s'.\n",
err && *err ? *err : "", path);
goto end;
}
ret = 0;
SWAP(ckch->key, key);
end:
ERR_clear_error();
if (in)
BIO_free(in);
if (key)
EVP_PKEY_free(key);
return ret;
}
/*
* Try to load a PEM file from a <path> or a buffer <buf>
* The PEM must contain at least a Certificate,
* It could contain a DH, a certificate chain and a PrivateKey.
*
* If it failed you should not attempt to use the ckch but free it.
*
* Return 0 on success or != 0 on failure
*/
int ssl_sock_load_pem_into_ckch(const char *path, char *buf, struct cert_key_and_chain *ckch , char **err)
{
BIO *in = NULL;
int ret = 1;
X509 *ca;
X509 *cert = NULL;
EVP_PKEY *key = NULL;
DH *dh = NULL;
STACK_OF(X509) *chain = NULL;
if (buf) {
/* reading from a buffer */
in = BIO_new_mem_buf(buf, -1);
if (in == NULL) {
memprintf(err, "%sCan't allocate memory\n", err && *err ? *err : "");
goto end;
}
} else {
/* reading from a file */
in = BIO_new(BIO_s_file());
if (in == NULL) {
memprintf(err, "%sCan't allocate memory\n", err && *err ? *err : "");
goto end;
}
if (BIO_read_filename(in, path) <= 0) {
memprintf(err, "%scannot open the file '%s'.\n",
err && *err ? *err : "", path);
goto end;
}
}
/* Read Private Key */
key = PEM_read_bio_PrivateKey(in, NULL, NULL, NULL);
/* no need to check for errors here, because the private key could be loaded later */
#ifndef OPENSSL_NO_DH
/* Seek back to beginning of file */
if (BIO_reset(in) == -1) {
memprintf(err, "%san error occurred while reading the file '%s'.\n",
err && *err ? *err : "", path);
goto end;
}
dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
/* no need to return an error there, dh is not mandatory */
#endif
/* Seek back to beginning of file */
if (BIO_reset(in) == -1) {
memprintf(err, "%san error occurred while reading the file '%s'.\n",
err && *err ? *err : "", path);
goto end;
}
/* Read Certificate */
cert = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL);
if (cert == NULL) {
memprintf(err, "%sunable to load certificate from file '%s'.\n",
err && *err ? *err : "", path);
goto end;
}
/* Look for a Certificate Chain */
while ((ca = PEM_read_bio_X509(in, NULL, NULL, NULL))) {
if (chain == NULL)
chain = sk_X509_new_null();
if (!sk_X509_push(chain, ca)) {
X509_free(ca);
goto end;
}
}
ret = ERR_get_error();
if (ret && (ERR_GET_LIB(ret) != ERR_LIB_PEM && ERR_GET_REASON(ret) != PEM_R_NO_START_LINE)) {
memprintf(err, "%sunable to load certificate chain from file '%s'.\n",
err && *err ? *err : "", path);
goto end;
}
/* once it loaded the PEM, it should remove everything else in the ckch */
if (ckch->ocsp_response) {
free(ckch->ocsp_response->area);
ckch->ocsp_response->area = NULL;
free(ckch->ocsp_response);
ckch->ocsp_response = NULL;
}
if (ckch->sctl) {
free(ckch->sctl->area);
ckch->sctl->area = NULL;
free(ckch->sctl);
ckch->sctl = NULL;
}
if (ckch->ocsp_issuer) {
X509_free(ckch->ocsp_issuer);
ckch->ocsp_issuer = NULL;
}
/* no error, fill ckch with new context, old context will be free at end: */
SWAP(ckch->key, key);
SWAP(ckch->dh, dh);
SWAP(ckch->cert, cert);
SWAP(ckch->chain, chain);
ret = 0;
end:
ERR_clear_error();
if (in)
BIO_free(in);
if (key)
EVP_PKEY_free(key);
if (dh)
DH_free(dh);
if (cert)
X509_free(cert);
if (chain)
sk_X509_pop_free(chain, X509_free);
return ret;
}
/* Frees the contents of a cert_key_and_chain
*/
void ssl_sock_free_cert_key_and_chain_contents(struct cert_key_and_chain *ckch)
{
if (!ckch)
return;
/* Free the certificate and set pointer to NULL */
if (ckch->cert)
X509_free(ckch->cert);
ckch->cert = NULL;
/* Free the key and set pointer to NULL */
if (ckch->key)
EVP_PKEY_free(ckch->key);
ckch->key = NULL;
/* Free each certificate in the chain */
if (ckch->chain)
sk_X509_pop_free(ckch->chain, X509_free);
ckch->chain = NULL;
if (ckch->dh)
DH_free(ckch->dh);
ckch->dh = NULL;
if (ckch->sctl) {
free(ckch->sctl->area);
ckch->sctl->area = NULL;
free(ckch->sctl);
ckch->sctl = NULL;
}
if (ckch->ocsp_response) {
free(ckch->ocsp_response->area);
ckch->ocsp_response->area = NULL;
free(ckch->ocsp_response);
ckch->ocsp_response = NULL;
}
if (ckch->ocsp_issuer)
X509_free(ckch->ocsp_issuer);
ckch->ocsp_issuer = NULL;
}
/*
*
* This function copy a cert_key_and_chain in memory
*
* It's used to try to apply changes on a ckch before committing them, because
* most of the time it's not possible to revert those changes
*
* Return a the dst or NULL
*/
struct cert_key_and_chain *ssl_sock_copy_cert_key_and_chain(struct cert_key_and_chain *src,
struct cert_key_and_chain *dst)
{
if (src->cert) {
dst->cert = src->cert;
X509_up_ref(src->cert);
}
if (src->key) {
dst->key = src->key;
EVP_PKEY_up_ref(src->key);
}
if (src->chain) {
dst->chain = X509_chain_up_ref(src->chain);
}
if (src->dh) {
DH_up_ref(src->dh);
dst->dh = src->dh;
}
if (src->sctl) {
struct buffer *sctl;
sctl = calloc(1, sizeof(*sctl));
if (!chunk_dup(sctl, src->sctl)) {
free(sctl);
sctl = NULL;
goto error;
}
dst->sctl = sctl;
}
if (src->ocsp_response) {
struct buffer *ocsp_response;
ocsp_response = calloc(1, sizeof(*ocsp_response));
if (!chunk_dup(ocsp_response, src->ocsp_response)) {
free(ocsp_response);
ocsp_response = NULL;
goto error;
}
dst->ocsp_response = ocsp_response;
}
if (src->ocsp_issuer) {
X509_up_ref(src->ocsp_issuer);
dst->ocsp_issuer = src->ocsp_issuer;
}
return dst;
error:
/* free everything */
ssl_sock_free_cert_key_and_chain_contents(dst);
return NULL;
}
/*
* return 0 on success or != 0 on failure
*/
int ssl_sock_load_issuer_file_into_ckch(const char *path, char *buf, struct cert_key_and_chain *ckch, char **err)
{
int ret = 1;
BIO *in = NULL;
X509 *issuer;
if (buf) {
/* reading from a buffer */
in = BIO_new_mem_buf(buf, -1);
if (in == NULL) {
memprintf(err, "%sCan't allocate memory\n", err && *err ? *err : "");
goto end;
}
} else {
/* reading from a file */
in = BIO_new(BIO_s_file());
if (in == NULL)
goto end;
if (BIO_read_filename(in, path) <= 0)
goto end;
}
issuer = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL);
if (!issuer) {
memprintf(err, "%s'%s' cannot be read or parsed'.\n",
err && *err ? *err : "", path);
goto end;
}
/* no error, fill ckch with new context, old context must be free */
if (ckch->ocsp_issuer)
X509_free(ckch->ocsp_issuer);
ckch->ocsp_issuer = issuer;
ret = 0;
end:
ERR_clear_error();
if (in)
BIO_free(in);
return ret;
}
/******************** ckch_store functions ***********************************
* The ckch_store is a structure used to cache and index the SSL files used in
* configuration
*/
/*
* Free a ckch_store, its ckch, its instances and remove it from the ebtree
*/
void ckch_store_free(struct ckch_store *store)
{
struct ckch_inst *inst, *inst_s;
if (!store)
return;
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000200L
if (store->multi) {
int n;
for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++)
ssl_sock_free_cert_key_and_chain_contents(&store->ckch[n]);
} else
#endif
{
ssl_sock_free_cert_key_and_chain_contents(store->ckch);
}
free(store->ckch);
store->ckch = NULL;
list_for_each_entry_safe(inst, inst_s, &store->ckch_inst, by_ckchs) {
ckch_inst_free(inst);
}
ebmb_delete(&store->node);
free(store);
}
/*
* create and initialize a ckch_store
* <path> is the key name
* <nmemb> is the number of store->ckch objects to allocate
*
* Return a ckch_store or NULL upon failure.
*/
struct ckch_store *ckch_store_new(const char *filename, int nmemb)
{
struct ckch_store *store;
int pathlen;
pathlen = strlen(filename);
store = calloc(1, sizeof(*store) + pathlen + 1);
if (!store)
return NULL;
if (nmemb > 1)
store->multi = 1;
else
store->multi = 0;
memcpy(store->path, filename, pathlen + 1);
LIST_INIT(&store->ckch_inst);
LIST_INIT(&store->crtlist_entry);
store->ckch = calloc(nmemb, sizeof(*store->ckch));
if (!store->ckch)
goto error;
return store;
error:
ckch_store_free(store);
return NULL;
}
/* allocate and duplicate a ckch_store
* Return a new ckch_store or NULL */
struct ckch_store *ckchs_dup(const struct ckch_store *src)
{
struct ckch_store *dst;
dst = ckch_store_new(src->path, src->multi ? SSL_SOCK_NUM_KEYTYPES : 1);
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL
if (src->multi) {
int n;
for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
if (&src->ckch[n]) {
if (!ssl_sock_copy_cert_key_and_chain(&src->ckch[n], &dst->ckch[n]))
goto error;
}
}
} else
#endif
{
if (!ssl_sock_copy_cert_key_and_chain(src->ckch, dst->ckch))
goto error;
}
return dst;
error:
ckch_store_free(dst);
return NULL;
}
/*
* lookup a path into the ckchs tree.
*/
struct ckch_store *ckchs_lookup(char *path)
{
struct ebmb_node *eb;
eb = ebst_lookup(&ckchs_tree, path);
if (!eb)
return NULL;
return ebmb_entry(eb, struct ckch_store, node);
}
/*
* This function allocate a ckch_store and populate it with certificates from files.
*/
struct ckch_store *ckchs_load_cert_file(char *path, int multi, char **err)
{
struct ckch_store *ckchs;
ckchs = ckch_store_new(path, multi ? SSL_SOCK_NUM_KEYTYPES : 1);
if (!ckchs) {
memprintf(err, "%sunable to allocate memory.\n", err && *err ? *err : "");
goto end;
}
if (!multi) {
if (ssl_sock_load_files_into_ckch(path, ckchs->ckch, err) == 1)
goto end;
/* insert into the ckchs tree */
memcpy(ckchs->path, path, strlen(path) + 1);
ebst_insert(&ckchs_tree, &ckchs->node);
} else {
int found = 0;
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL
char fp[MAXPATHLEN+1] = {0};
int n = 0;
/* Load all possible certs and keys */
for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
struct stat buf;
snprintf(fp, sizeof(fp), "%s.%s", path, SSL_SOCK_KEYTYPE_NAMES[n]);
if (stat(fp, &buf) == 0) {
if (ssl_sock_load_files_into_ckch(fp, &ckchs->ckch[n], err) == 1)
goto end;
found = 1;
ckchs->multi = 1;
}
}
#endif
if (!found) {
memprintf(err, "%sDidn't find any certificate for bundle '%s'.\n", err && *err ? *err : "", path);
goto end;
}
/* insert into the ckchs tree */
memcpy(ckchs->path, path, strlen(path) + 1);
ebst_insert(&ckchs_tree, &ckchs->node);
}
return ckchs;
end:
ckch_store_free(ckchs);
return NULL;
}
/******************** ckch_inst functions ******************************/
/* unlink a ckch_inst, free all SNIs, free the ckch_inst */
/* The caller must use the lock of the bind_conf if used with inserted SNIs */
void ckch_inst_free(struct ckch_inst *inst)
{
struct sni_ctx *sni, *sni_s;
if (inst == NULL)
return;
list_for_each_entry_safe(sni, sni_s, &inst->sni_ctx, by_ckch_inst) {
SSL_CTX_free(sni->ctx);
LIST_DEL(&sni->by_ckch_inst);
ebmb_delete(&sni->name);
free(sni);
}
LIST_DEL(&inst->by_ckchs);
LIST_DEL(&inst->by_crtlist_entry);
free(inst);
}
/* Alloc and init a ckch_inst */
struct ckch_inst *ckch_inst_new()
{
struct ckch_inst *ckch_inst;
ckch_inst = calloc(1, sizeof *ckch_inst);
if (!ckch_inst)
return NULL;
LIST_INIT(&ckch_inst->sni_ctx);
LIST_INIT(&ckch_inst->by_ckchs);
LIST_INIT(&ckch_inst->by_crtlist_entry);
return ckch_inst;
}
/*************************** CLI commands ***********************/
/* Type of SSL payloads that can be updated over the CLI */
enum {
CERT_TYPE_PEM = 0,
CERT_TYPE_KEY,
#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) || defined OPENSSL_IS_BORINGSSL)
CERT_TYPE_OCSP,
#endif
CERT_TYPE_ISSUER,
#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
CERT_TYPE_SCTL,
#endif
CERT_TYPE_MAX,
};
struct {
const char *ext;
int type;
int (*load)(const char *path, char *payload, struct cert_key_and_chain *ckch, char **err);
/* add a parsing callback */
} cert_exts[CERT_TYPE_MAX+1] = {
[CERT_TYPE_PEM] = { "", CERT_TYPE_PEM, &ssl_sock_load_pem_into_ckch }, /* default mode, no extensions */
[CERT_TYPE_KEY] = { "key", CERT_TYPE_KEY, &ssl_sock_load_key_into_ckch },
#if ((defined SSL_CTRL_SET_TLSEXT_STATUS_REQ_CB && !defined OPENSSL_NO_OCSP) || defined OPENSSL_IS_BORINGSSL)
[CERT_TYPE_OCSP] = { "ocsp", CERT_TYPE_OCSP, &ssl_sock_load_ocsp_response_from_file },
#endif
#if (HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL && !defined OPENSSL_NO_TLSEXT && !defined OPENSSL_IS_BORINGSSL)
[CERT_TYPE_SCTL] = { "sctl", CERT_TYPE_SCTL, &ssl_sock_load_sctl_from_file },
#endif
[CERT_TYPE_ISSUER] = { "issuer", CERT_TYPE_ISSUER, &ssl_sock_load_issuer_file_into_ckch },
[CERT_TYPE_MAX] = { NULL, CERT_TYPE_MAX, NULL },
};
/* release function of the `show ssl cert' command */
static void cli_release_show_cert(struct appctx *appctx)
{
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
}
/* IO handler of "show ssl cert <filename>" */
static int cli_io_handler_show_cert(struct appctx *appctx)
{
struct buffer *trash = alloc_trash_chunk();
struct ebmb_node *node;
struct stream_interface *si = appctx->owner;
struct ckch_store *ckchs;
if (trash == NULL)
return 1;
if (!appctx->ctx.ssl.old_ckchs) {
if (ckchs_transaction.old_ckchs) {
ckchs = ckchs_transaction.old_ckchs;
chunk_appendf(trash, "# transaction\n");
if (!ckchs->multi) {
chunk_appendf(trash, "*%s\n", ckchs->path);
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL
} else {
int n;
chunk_appendf(trash, "*%s:", ckchs->path);
for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
if (ckchs->ckch[n].cert)
chunk_appendf(trash, " %s.%s\n", ckchs->path, SSL_SOCK_KEYTYPE_NAMES[n]);
}
chunk_appendf(trash, "\n");
#endif
}
}
}
if (!appctx->ctx.cli.p0) {
chunk_appendf(trash, "# filename\n");
node = ebmb_first(&ckchs_tree);
} else {
node = &((struct ckch_store *)appctx->ctx.cli.p0)->node;
}
while (node) {
ckchs = ebmb_entry(node, struct ckch_store, node);
if (!ckchs->multi) {
chunk_appendf(trash, "%s\n", ckchs->path);
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL
} else {
int n;
chunk_appendf(trash, "%s:", ckchs->path);
for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
if (ckchs->ckch[n].cert)
chunk_appendf(trash, " %s.%s", ckchs->path, SSL_SOCK_KEYTYPE_NAMES[n]);
}
chunk_appendf(trash, "\n");
#endif
}
node = ebmb_next(node);
if (ci_putchk(si_ic(si), trash) == -1) {
si_rx_room_blk(si);
goto yield;
}
}
appctx->ctx.cli.p0 = NULL;
free_trash_chunk(trash);
return 1;
yield:
free_trash_chunk(trash);
appctx->ctx.cli.p0 = ckchs;
return 0; /* should come back */
}
/*
* Extract and format the DNS SAN extensions and copy result into a chuink
* Return 0;
*/
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
static int ssl_sock_get_san_oneline(X509 *cert, struct buffer *out)
{
int i;
char *str;
STACK_OF(GENERAL_NAME) *names = NULL;
names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
if (names) {
for (i = 0; i < sk_GENERAL_NAME_num(names); i++) {
GENERAL_NAME *name = sk_GENERAL_NAME_value(names, i);
if (i > 0)
chunk_appendf(out, ", ");
if (name->type == GEN_DNS) {
if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) {
chunk_appendf(out, "DNS:%s", str);
OPENSSL_free(str);
}
}
}
sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free);
}
return 0;
}
#endif
/* IO handler of the details "show ssl cert <filename>" */
static int cli_io_handler_show_cert_detail(struct appctx *appctx)
{
struct stream_interface *si = appctx->owner;
struct ckch_store *ckchs = appctx->ctx.cli.p0;
struct buffer *out = alloc_trash_chunk();
struct buffer *tmp = alloc_trash_chunk();
X509_NAME *name = NULL;
STACK_OF(X509) *chain;
unsigned int len = 0;
int write = -1;
BIO *bio = NULL;
int i;
if (!tmp || !out)
goto end_no_putchk;
if (!ckchs->multi) {
chunk_appendf(out, "Filename: ");
if (ckchs == ckchs_transaction.new_ckchs)
chunk_appendf(out, "*");
chunk_appendf(out, "%s\n", ckchs->path);
chunk_appendf(out, "Status: ");
if (ckchs->ckch->cert == NULL)
chunk_appendf(out, "Empty\n");
else if (LIST_ISEMPTY(&ckchs->ckch_inst))
chunk_appendf(out, "Unused\n");
else
chunk_appendf(out, "Used\n");
if (ckchs->ckch->cert == NULL)
goto end;
chain = ckchs->ckch->chain;
if (chain == NULL) {
struct issuer_chain *issuer;
issuer = ssl_get0_issuer_chain(ckchs->ckch->cert);
if (issuer) {
chain = issuer->chain;
chunk_appendf(out, "Chain Filename: ");
chunk_appendf(out, "%s\n", issuer->path);
}
}
chunk_appendf(out, "Serial: ");
if (ssl_sock_get_serial(ckchs->ckch->cert, tmp) == -1)
goto end;
dump_binary(out, tmp->area, tmp->data);
chunk_appendf(out, "\n");
chunk_appendf(out, "notBefore: ");
chunk_reset(tmp);
if ((bio = BIO_new(BIO_s_mem())) == NULL)
goto end;
if (ASN1_TIME_print(bio, X509_getm_notBefore(ckchs->ckch->cert)) == 0)
goto end;
write = BIO_read(bio, tmp->area, tmp->size-1);
tmp->area[write] = '\0';
BIO_free(bio);
bio = NULL;
chunk_appendf(out, "%s\n", tmp->area);
chunk_appendf(out, "notAfter: ");
chunk_reset(tmp);
if ((bio = BIO_new(BIO_s_mem())) == NULL)
goto end;
if (ASN1_TIME_print(bio, X509_getm_notAfter(ckchs->ckch->cert)) == 0)
goto end;
if ((write = BIO_read(bio, tmp->area, tmp->size-1)) <= 0)
goto end;
tmp->area[write] = '\0';
BIO_free(bio);
bio = NULL;
chunk_appendf(out, "%s\n", tmp->area);
#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
chunk_appendf(out, "Subject Alternative Name: ");
if (ssl_sock_get_san_oneline(ckchs->ckch->cert, out) == -1)
goto end;
*(out->area + out->data) = '\0';
chunk_appendf(out, "\n");
#endif
chunk_reset(tmp);
chunk_appendf(out, "Algorithm: ");
if (cert_get_pkey_algo(ckchs->ckch->cert, tmp) == 0)
goto end;
chunk_appendf(out, "%s\n", tmp->area);
chunk_reset(tmp);
chunk_appendf(out, "SHA1 FingerPrint: ");
if (X509_digest(ckchs->ckch->cert, EVP_sha1(), (unsigned char *) tmp->area, &len) == 0)
goto end;
tmp->data = len;
dump_binary(out, tmp->area, tmp->data);
chunk_appendf(out, "\n");
chunk_appendf(out, "Subject: ");
if ((name = X509_get_subject_name(ckchs->ckch->cert)) == NULL)
goto end;
if ((ssl_sock_get_dn_oneline(name, tmp)) == -1)
goto end;
*(tmp->area + tmp->data) = '\0';
chunk_appendf(out, "%s\n", tmp->area);
chunk_appendf(out, "Issuer: ");
if ((name = X509_get_issuer_name(ckchs->ckch->cert)) == NULL)
goto end;
if ((ssl_sock_get_dn_oneline(name, tmp)) == -1)
goto end;
*(tmp->area + tmp->data) = '\0';
chunk_appendf(out, "%s\n", tmp->area);
/* Displays subject of each certificate in the chain */
for (i = 0; i < sk_X509_num(chain); i++) {
X509 *ca = sk_X509_value(chain, i);
chunk_appendf(out, "Chain Subject: ");
if ((name = X509_get_subject_name(ca)) == NULL)
goto end;
if ((ssl_sock_get_dn_oneline(name, tmp)) == -1)
goto end;
*(tmp->area + tmp->data) = '\0';
chunk_appendf(out, "%s\n", tmp->area);
chunk_appendf(out, "Chain Issuer: ");
if ((name = X509_get_issuer_name(ca)) == NULL)
goto end;
if ((ssl_sock_get_dn_oneline(name, tmp)) == -1)
goto end;
*(tmp->area + tmp->data) = '\0';
chunk_appendf(out, "%s\n", tmp->area);
}
}
end:
if (ci_putchk(si_ic(si), out) == -1) {
si_rx_room_blk(si);
goto yield;
}
end_no_putchk:
if (bio)
BIO_free(bio);
free_trash_chunk(tmp);
free_trash_chunk(out);
return 1;
yield:
free_trash_chunk(tmp);
free_trash_chunk(out);
return 0; /* should come back */
}
/* parsing function for 'show ssl cert [certfile]' */
static int cli_parse_show_cert(char **args, char *payload, struct appctx *appctx, void *private)
{
struct ckch_store *ckchs;
if (!cli_has_level(appctx, ACCESS_LVL_OPER))
return cli_err(appctx, "Can't allocate memory!\n");
/* The operations on the CKCH architecture are locked so we can
* manipulate ckch_store and ckch_inst */
if (HA_SPIN_TRYLOCK(CKCH_LOCK, &ckch_lock))
return cli_err(appctx, "Can't show!\nOperations on certificates are currently locked!\n");
/* check if there is a certificate to lookup */
if (*args[3]) {
if (*args[3] == '*') {
if (!ckchs_transaction.new_ckchs)
goto error;
ckchs = ckchs_transaction.new_ckchs;
if (strcmp(args[3] + 1, ckchs->path))
goto error;
} else {
if ((ckchs = ckchs_lookup(args[3])) == NULL)
goto error;
}
if (ckchs->multi)
goto error;
appctx->ctx.cli.p0 = ckchs;
/* use the IO handler that shows details */
appctx->io_handler = cli_io_handler_show_cert_detail;
}
return 0;
error:
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
return cli_err(appctx, "Can't display the certificate: Not found or the certificate is a bundle!\n");
}
/* release function of the `set ssl cert' command, free things and unlock the spinlock */
static void cli_release_commit_cert(struct appctx *appctx)
{
struct ckch_store *new_ckchs;
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
if (appctx->st2 != SETCERT_ST_FIN) {
/* free every new sni_ctx and the new store, which are not in the trees so no spinlock there */
new_ckchs = appctx->ctx.ssl.new_ckchs;
/* if the allocation failed, we need to free everything from the temporary list */
ckch_store_free(new_ckchs);
}
}
/*
* This function tries to create the new ckch_inst and their SNIs
*/
static int cli_io_handler_commit_cert(struct appctx *appctx)
{
struct stream_interface *si = appctx->owner;
int y = 0;
char *err = NULL;
int errcode = 0;
struct ckch_store *old_ckchs, *new_ckchs = NULL;
struct ckch_inst *ckchi, *ckchis;
struct buffer *trash = alloc_trash_chunk();
struct sni_ctx *sc0, *sc0s;
struct crtlist_entry *entry;
if (trash == NULL)
goto error;
if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
goto error;
while (1) {
switch (appctx->st2) {
case SETCERT_ST_INIT:
/* This state just print the update message */
chunk_printf(trash, "Committing %s", ckchs_transaction.path);
if (ci_putchk(si_ic(si), trash) == -1) {
si_rx_room_blk(si);
goto yield;
}
appctx->st2 = SETCERT_ST_GEN;
/* fallthrough */
case SETCERT_ST_GEN:
/*
* This state generates the ckch instances with their
* sni_ctxs and SSL_CTX.
*
* Since the SSL_CTX generation can be CPU consumer, we
* yield every 10 instances.
*/
old_ckchs = appctx->ctx.ssl.old_ckchs;
new_ckchs = appctx->ctx.ssl.new_ckchs;
if (!new_ckchs)
continue;
/* get the next ckchi to regenerate */
ckchi = appctx->ctx.ssl.next_ckchi;
/* we didn't start yet, set it to the first elem */
if (ckchi == NULL)
ckchi = LIST_ELEM(old_ckchs->ckch_inst.n, typeof(ckchi), by_ckchs);
/* walk through the old ckch_inst and creates new ckch_inst using the updated ckchs */
list_for_each_entry_from(ckchi, &old_ckchs->ckch_inst, by_ckchs) {
struct ckch_inst *new_inst;
char **sni_filter = NULL;
int fcount = 0;
/* it takes a lot of CPU to creates SSL_CTXs, so we yield every 10 CKCH instances */
if (y >= 10) {
/* save the next ckchi to compute */
appctx->ctx.ssl.next_ckchi = ckchi;
goto yield;
}
if (ckchi->crtlist_entry) {
sni_filter = ckchi->crtlist_entry->filters;
fcount = ckchi->crtlist_entry->fcount;
}
if (new_ckchs->multi)
errcode |= ckch_inst_new_load_multi_store(new_ckchs->path, new_ckchs, ckchi->bind_conf, ckchi->ssl_conf, sni_filter, fcount, &new_inst, &err);
else
errcode |= ckch_inst_new_load_store(new_ckchs->path, new_ckchs, ckchi->bind_conf, ckchi->ssl_conf, sni_filter, fcount, &new_inst, &err);
if (errcode & ERR_CODE)
goto error;
/* if the previous ckchi was used as the default */
if (ckchi->is_default)
new_inst->is_default = 1;
/* we need to initialize the SSL_CTX generated */
/* this iterate on the newly generated SNIs in the new instance to prepare their SSL_CTX */
list_for_each_entry_safe(sc0, sc0s, &new_inst->sni_ctx, by_ckch_inst) {
if (!sc0->order) { /* we initialized only the first SSL_CTX because it's the same in the other sni_ctx's */
errcode |= ssl_sock_prepare_ctx(ckchi->bind_conf, ckchi->ssl_conf, sc0->ctx, &err);
if (errcode & ERR_CODE)
goto error;
}
}
/* display one dot per new instance */
chunk_appendf(trash, ".");
/* link the new ckch_inst to the duplicate */
LIST_ADDQ(&new_ckchs->ckch_inst, &new_inst->by_ckchs);
y++;
}
appctx->st2 = SETCERT_ST_INSERT;
/* fallthrough */
case SETCERT_ST_INSERT:
/* The generation is finished, we can insert everything */
old_ckchs = appctx->ctx.ssl.old_ckchs;
new_ckchs = appctx->ctx.ssl.new_ckchs;
if (!new_ckchs)
continue;
/* get the list of crtlist_entry in the old store, and update the pointers to the store */
LIST_SPLICE(&new_ckchs->crtlist_entry, &old_ckchs->crtlist_entry);
list_for_each_entry(entry, &new_ckchs->crtlist_entry, by_ckch_store) {
ebpt_delete(&entry->node);
/* change the ptr and reinsert the node */
entry->node.key = new_ckchs;
ebpt_insert(&entry->crtlist->entries, &entry->node);
}
/* First, we insert every new SNIs in the trees, also replace the default_ctx */
list_for_each_entry_safe(ckchi, ckchis, &new_ckchs->ckch_inst, by_ckchs) {
HA_RWLOCK_WRLOCK(SNI_LOCK, &ckchi->bind_conf->sni_lock);
ssl_sock_load_cert_sni(ckchi, ckchi->bind_conf);
HA_RWLOCK_WRUNLOCK(SNI_LOCK, &ckchi->bind_conf->sni_lock);
}
/* delete the old sni_ctx, the old ckch_insts and the ckch_store */
list_for_each_entry_safe(ckchi, ckchis, &old_ckchs->ckch_inst, by_ckchs) {
struct bind_conf __maybe_unused *bind_conf = ckchi->bind_conf;
HA_RWLOCK_WRLOCK(SNI_LOCK, &bind_conf->sni_lock);
ckch_inst_free(ckchi);
HA_RWLOCK_WRUNLOCK(SNI_LOCK, &bind_conf->sni_lock);
}
/* Replace the old ckchs by the new one */
ckch_store_free(old_ckchs);
ebst_insert(&ckchs_tree, &new_ckchs->node);
appctx->st2 = SETCERT_ST_FIN;
/* fallthrough */
case SETCERT_ST_FIN:
/* we achieved the transaction, we can set everything to NULL */
free(ckchs_transaction.path);
ckchs_transaction.path = NULL;
ckchs_transaction.new_ckchs = NULL;
ckchs_transaction.old_ckchs = NULL;
goto end;
}
}
end:
chunk_appendf(trash, "\n");
if (errcode & ERR_WARN)
chunk_appendf(trash, "%s", err);
chunk_appendf(trash, "Success!\n");
if (ci_putchk(si_ic(si), trash) == -1)
si_rx_room_blk(si);
free_trash_chunk(trash);
/* success: call the release function and don't come back */
return 1;
yield:
/* store the state */
if (ci_putchk(si_ic(si), trash) == -1)
si_rx_room_blk(si);
free_trash_chunk(trash);
si_rx_endp_more(si); /* let's come back later */
return 0; /* should come back */
error:
/* spin unlock and free are done in the release function */
if (trash) {
chunk_appendf(trash, "\n%sFailed!\n", err);
if (ci_putchk(si_ic(si), trash) == -1)
si_rx_room_blk(si);
free_trash_chunk(trash);
}
/* error: call the release function and don't come back */
return 1;
}
/*
* Parsing function of 'commit ssl cert'
*/
static int cli_parse_commit_cert(char **args, char *payload, struct appctx *appctx, void *private)
{
char *err = NULL;
if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
return 1;
if (!*args[3])
return cli_err(appctx, "'commit ssl cert expects a filename\n");
/* The operations on the CKCH architecture are locked so we can
* manipulate ckch_store and ckch_inst */
if (HA_SPIN_TRYLOCK(CKCH_LOCK, &ckch_lock))
return cli_err(appctx, "Can't commit the certificate!\nOperations on certificates are currently locked!\n");
if (!ckchs_transaction.path) {
memprintf(&err, "No ongoing transaction! !\n");
goto error;
}
if (strcmp(ckchs_transaction.path, args[3]) != 0) {
memprintf(&err, "The ongoing transaction is about '%s' but you are trying to set '%s'\n", ckchs_transaction.path, args[3]);
goto error;
}
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL
if (ckchs_transaction.new_ckchs->multi) {
int n;
for (n = 0; n < SSL_SOCK_NUM_KEYTYPES; n++) {
if (ckchs_transaction.new_ckchs->ckch[n].cert && !X509_check_private_key(ckchs_transaction.new_ckchs->ckch[n].cert, ckchs_transaction.new_ckchs->ckch[n].key)) {
memprintf(&err, "inconsistencies between private key and certificate loaded '%s'.\n", ckchs_transaction.path);
goto error;
}
}
} else
#endif
{
if (!X509_check_private_key(ckchs_transaction.new_ckchs->ckch->cert, ckchs_transaction.new_ckchs->ckch->key)) {
memprintf(&err, "inconsistencies between private key and certificate loaded '%s'.\n", ckchs_transaction.path);
goto error;
}
}
/* init the appctx structure */
appctx->st2 = SETCERT_ST_INIT;
appctx->ctx.ssl.next_ckchi = NULL;
appctx->ctx.ssl.new_ckchs = ckchs_transaction.new_ckchs;
appctx->ctx.ssl.old_ckchs = ckchs_transaction.old_ckchs;
/* we don't unlock there, it will be unlock after the IO handler, in the release handler */
return 0;
error:
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
err = memprintf(&err, "%sCan't commit %s!\n", err ? err : "", args[3]);
return cli_dynerr(appctx, err);
}
/*
* Parsing function of `set ssl cert`, it updates or creates a temporary ckch.
*/
static int cli_parse_set_cert(char **args, char *payload, struct appctx *appctx, void *private)
{
struct ckch_store *new_ckchs = NULL;
struct ckch_store *old_ckchs = NULL;
char *err = NULL;
int i;
int bundle = -1; /* TRUE if >= 0 (ckch index) */
int errcode = 0;
char *end;
int type = CERT_TYPE_PEM;
struct cert_key_and_chain *ckch;
struct buffer *buf;
if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
return 1;
if ((buf = alloc_trash_chunk()) == NULL)
return cli_err(appctx, "Can't allocate memory\n");
if (!*args[3] || !payload)
return cli_err(appctx, "'set ssl cert expects a filename and a certificate as a payload\n");
/* The operations on the CKCH architecture are locked so we can
* manipulate ckch_store and ckch_inst */
if (HA_SPIN_TRYLOCK(CKCH_LOCK, &ckch_lock))
return cli_err(appctx, "Can't update the certificate!\nOperations on certificates are currently locked!\n");
if (!chunk_strcpy(buf, args[3])) {
memprintf(&err, "%sCan't allocate memory\n", err ? err : "");
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
/* check which type of file we want to update */
for (i = 0; cert_exts[i].type < CERT_TYPE_MAX; i++) {
end = strrchr(buf->area, '.');
if (end && *cert_exts[i].ext && (!strcmp(end + 1, cert_exts[i].ext))) {
*end = '\0';
type = cert_exts[i].type;
break;
}
}
appctx->ctx.ssl.old_ckchs = NULL;
appctx->ctx.ssl.new_ckchs = NULL;
/* if there is an ongoing transaction */
if (ckchs_transaction.path) {
/* if the ongoing transaction is a bundle, we need to find which part of the bundle need to be updated */
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL
if (ckchs_transaction.new_ckchs->multi) {
char *end;
int j;
/* check if it was used in a bundle by removing the
* .dsa/.rsa/.ecdsa at the end of the filename */
end = strrchr(buf->area, '.');
for (j = 0; end && j < SSL_SOCK_NUM_KEYTYPES; j++) {
if (!strcmp(end + 1, SSL_SOCK_KEYTYPE_NAMES[j])) {
bundle = j; /* keep the type of certificate so we insert it at the right place */
*end = '\0'; /* it's a bundle let's end the string*/
break;
}
}
if (bundle < 0) {
memprintf(&err, "The ongoing transaction is the '%s' bundle. You need to specify which part of the bundle you want to update ('%s.{rsa,ecdsa,dsa}')\n", ckchs_transaction.path, buf->area);
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
}
#endif
/* if there is an ongoing transaction, check if this is the same file */
if (strcmp(ckchs_transaction.path, buf->area) != 0) {
memprintf(&err, "The ongoing transaction is about '%s' but you are trying to set '%s'\n", ckchs_transaction.path, buf->area);
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
appctx->ctx.ssl.old_ckchs = ckchs_transaction.new_ckchs;
} else {
struct ckch_store *find_ckchs[2] = { NULL, NULL };
/* lookup for the certificate in the tree:
* check if this is used as a bundle AND as a unique certificate */
for (i = 0; i < 2; i++) {
if ((find_ckchs[i] = ckchs_lookup(buf->area)) != NULL) {
/* only the bundle name is in the tree and you should
* never update a bundle name, only a filename */
if (bundle < 0 && find_ckchs[i]->multi) {
/* we tried to look for a non-bundle and we found a bundle */
memprintf(&err, "%s%s is a multi-cert bundle. Try updating %s.{dsa,rsa,ecdsa}\n",
err ? err : "", args[3], args[3]);
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
/* If we want a bundle but this is not a bundle
* example: When you try to update <file>.rsa, but
* <file> is a regular file */
if (bundle >= 0 && find_ckchs[i]->multi == 0) {
find_ckchs[i] = NULL;
break;
}
}
#if HA_OPENSSL_VERSION_NUMBER >= 0x1000200fL
{
char *end;
int j;
/* check if it was used in a bundle by removing the
* .dsa/.rsa/.ecdsa at the end of the filename */
end = strrchr(buf->area, '.');
for (j = 0; end && j < SSL_SOCK_NUM_KEYTYPES; j++) {
if (!strcmp(end + 1, SSL_SOCK_KEYTYPE_NAMES[j])) {
bundle = j; /* keep the type of certificate so we insert it at the right place */
*end = '\0'; /* it's a bundle let's end the string*/
break;
}
}
if (bundle < 0) /* we didn't find a bundle extension */
break;
}
#else
/* bundles are not supported here, so we don't need to lookup again */
break;
#endif
}
if (find_ckchs[0] && find_ckchs[1]) {
memprintf(&err, "%sUpdating a certificate which is used in the HAProxy configuration as a bundle and as a unique certificate is not supported. ('%s' and '%s')\n",
err ? err : "", find_ckchs[0]->path, find_ckchs[1]->path);
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
appctx->ctx.ssl.old_ckchs = find_ckchs[0] ? find_ckchs[0] : find_ckchs[1];
}
if (!appctx->ctx.ssl.old_ckchs) {
memprintf(&err, "%sCan't replace a certificate which is not referenced by the configuration!\n",
err ? err : "");
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
if (!appctx->ctx.ssl.path) {
/* this is a new transaction, set the path of the transaction */
appctx->ctx.ssl.path = strdup(appctx->ctx.ssl.old_ckchs->path);
if (!appctx->ctx.ssl.path) {
memprintf(&err, "%sCan't allocate memory\n", err ? err : "");
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
}
old_ckchs = appctx->ctx.ssl.old_ckchs;
/* duplicate the ckch store */
new_ckchs = ckchs_dup(old_ckchs);
if (!new_ckchs) {
memprintf(&err, "%sCannot allocate memory!\n",
err ? err : "");
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
if (!new_ckchs->multi)
ckch = new_ckchs->ckch;
else
ckch = &new_ckchs->ckch[bundle];
/* appply the change on the duplicate */
if (cert_exts[type].load(buf->area, payload, ckch, &err) != 0) {
memprintf(&err, "%sCan't load the payload\n", err ? err : "");
errcode |= ERR_ALERT | ERR_FATAL;
goto end;
}
appctx->ctx.ssl.new_ckchs = new_ckchs;
/* we succeed, we can save the ckchs in the transaction */
/* if there wasn't a transaction, update the old ckchs */
if (!ckchs_transaction.old_ckchs) {
ckchs_transaction.old_ckchs = appctx->ctx.ssl.old_ckchs;
ckchs_transaction.path = appctx->ctx.ssl.path;
err = memprintf(&err, "Transaction created for certificate %s!\n", ckchs_transaction.path);
} else {
err = memprintf(&err, "Transaction updated for certificate %s!\n", ckchs_transaction.path);
}
/* free the previous ckchs if there was a transaction */
ckch_store_free(ckchs_transaction.new_ckchs);
ckchs_transaction.new_ckchs = appctx->ctx.ssl.new_ckchs;
/* creates the SNI ctxs later in the IO handler */
end:
free_trash_chunk(buf);
if (errcode & ERR_CODE) {
ckch_store_free(appctx->ctx.ssl.new_ckchs);
appctx->ctx.ssl.new_ckchs = NULL;
appctx->ctx.ssl.old_ckchs = NULL;
free(appctx->ctx.ssl.path);
appctx->ctx.ssl.path = NULL;
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
return cli_dynerr(appctx, memprintf(&err, "%sCan't update %s!\n", err ? err : "", args[3]));
} else {
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
return cli_dynmsg(appctx, LOG_NOTICE, err);
}
/* TODO: handle the ERR_WARN which are not handled because of the io_handler */
}
/* parsing function of 'abort ssl cert' */
static int cli_parse_abort_cert(char **args, char *payload, struct appctx *appctx, void *private)
{
char *err = NULL;
if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
return 1;
if (!*args[3])
return cli_err(appctx, "'abort ssl cert' expects a filename\n");
/* The operations on the CKCH architecture are locked so we can
* manipulate ckch_store and ckch_inst */
if (HA_SPIN_TRYLOCK(CKCH_LOCK, &ckch_lock))
return cli_err(appctx, "Can't abort!\nOperations on certificates are currently locked!\n");
if (!ckchs_transaction.path) {
memprintf(&err, "No ongoing transaction!\n");
goto error;
}
if (strcmp(ckchs_transaction.path, args[3]) != 0) {
memprintf(&err, "The ongoing transaction is about '%s' but you are trying to abort a transaction for '%s'\n", ckchs_transaction.path, args[3]);
goto error;
}
/* Only free the ckchs there, because the SNI and instances were not generated yet */
ckch_store_free(ckchs_transaction.new_ckchs);
ckchs_transaction.new_ckchs = NULL;
ckch_store_free(ckchs_transaction.old_ckchs);
ckchs_transaction.old_ckchs = NULL;
free(ckchs_transaction.path);
ckchs_transaction.path = NULL;
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
err = memprintf(&err, "Transaction aborted for certificate '%s'!\n", args[3]);
return cli_dynmsg(appctx, LOG_NOTICE, err);
error:
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
return cli_dynerr(appctx, err);
}
/* parsing function of 'new ssl cert' */
static int cli_parse_new_cert(char **args, char *payload, struct appctx *appctx, void *private)
{
struct ckch_store *store;
char *err = NULL;
char *path;
if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
return 1;
if (!*args[3])
return cli_err(appctx, "'new ssl cert' expects a filename\n");
path = args[3];
/* The operations on the CKCH architecture are locked so we can
* manipulate ckch_store and ckch_inst */
if (HA_SPIN_TRYLOCK(CKCH_LOCK, &ckch_lock))
return cli_err(appctx, "Can't create a certificate!\nOperations on certificates are currently locked!\n");
store = ckchs_lookup(path);
if (store != NULL) {
memprintf(&err, "Certificate '%s' already exists!\n", path);
store = NULL; /* we don't want to free it */
goto error;
}
/* we won't support multi-certificate bundle here */
store = ckch_store_new(path, 1);
if (!store) {
memprintf(&err, "unable to allocate memory.\n");
goto error;
}
/* insert into the ckchs tree */
ebst_insert(&ckchs_tree, &store->node);
memprintf(&err, "New empty certificate store '%s'!\n", args[3]);
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
return cli_dynmsg(appctx, LOG_NOTICE, err);
error:
free(store);
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
return cli_dynerr(appctx, err);
}
/* parsing function of 'del ssl cert' */
static int cli_parse_del_cert(char **args, char *payload, struct appctx *appctx, void *private)
{
struct ckch_store *store;
char *err = NULL;
char *filename;
if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
return 1;
if (!*args[3])
return cli_err(appctx, "'del ssl cert' expects a certificate name\n");
if (HA_SPIN_TRYLOCK(CKCH_LOCK, &ckch_lock))
return cli_err(appctx, "Can't delete the certificate!\nOperations on certificates are currently locked!\n");
filename = args[3];
store = ckchs_lookup(filename);
if (store == NULL) {
memprintf(&err, "certificate '%s' doesn't exist!\n", filename);
goto error;
}
if (!LIST_ISEMPTY(&store->ckch_inst)) {
memprintf(&err, "certificate '%s' in use, can't be deleted!\n", filename);
goto error;
}
ebmb_delete(&store->node);
ckch_store_free(store);
memprintf(&err, "Certificate '%s' deleted!\n", filename);
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
return cli_dynmsg(appctx, LOG_NOTICE, err);
error:
memprintf(&err, "Can't remove the certificate: %s\n", err ? err : "");
HA_SPIN_UNLOCK(CKCH_LOCK, &ckch_lock);
return cli_dynerr(appctx, err);
}
/* register cli keywords */
static struct cli_kw_list cli_kws = {{ },{
{ { "new", "ssl", "cert", NULL }, "new ssl cert <certfile> : create a new certificate file to be used in a crt-list or a directory", cli_parse_new_cert, NULL, NULL },
{ { "set", "ssl", "cert", NULL }, "set ssl cert <certfile> <payload> : replace a certificate file", cli_parse_set_cert, NULL, NULL },
{ { "commit", "ssl", "cert", NULL }, "commit ssl cert <certfile> : commit a certificate file", cli_parse_commit_cert, cli_io_handler_commit_cert, cli_release_commit_cert },
{ { "abort", "ssl", "cert", NULL }, "abort ssl cert <certfile> : abort a transaction for a certificate file", cli_parse_abort_cert, NULL, NULL },
{ { "del", "ssl", "cert", NULL }, "del ssl cert <certfile> : delete an unused certificate file", cli_parse_del_cert, NULL, NULL },
{ { "show", "ssl", "cert", NULL }, "show ssl cert [<certfile>] : display the SSL certificates used in memory, or the details of a <certfile>", cli_parse_show_cert, cli_io_handler_show_cert, cli_release_show_cert },
{ { NULL }, NULL, NULL, NULL }
}};
INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
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