| /* |
| * SSL/TLS transport layer over SOCK_STREAM sockets |
| * |
| * Copyright (C) 2012 EXCELIANCE, Emeric Brun <ebrun@exceliance.fr> |
| * |
| * 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. |
| * |
| * Acknowledgement: |
| * We'd like to specially thank the Stud project authors for a very clean |
| * and well documented code which helped us understand how the OpenSSL API |
| * ought to be used in non-blocking mode. This is one difficult part which |
| * is not easy to get from the OpenSSL doc, and reading the Stud code made |
| * it much more obvious than the examples in the OpenSSL package. Keep up |
| * the good works, guys ! |
| * |
| * Stud is an extremely efficient and scalable SSL/TLS proxy which combines |
| * particularly well with haproxy. For more info about this project, visit : |
| * https://github.com/bumptech/stud |
| * |
| */ |
| |
| #define _GNU_SOURCE |
| #include <ctype.h> |
| #include <dirent.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include <sys/socket.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #include <netinet/tcp.h> |
| |
| #include <openssl/ssl.h> |
| #include <openssl/x509.h> |
| #include <openssl/x509v3.h> |
| #include <openssl/x509.h> |
| #include <openssl/err.h> |
| #include <openssl/rand.h> |
| |
| #include <common/buffer.h> |
| #include <common/compat.h> |
| #include <common/config.h> |
| #include <common/debug.h> |
| #include <common/errors.h> |
| #include <common/standard.h> |
| #include <common/ticks.h> |
| #include <common/time.h> |
| |
| #include <ebsttree.h> |
| |
| #include <types/global.h> |
| #include <types/ssl_sock.h> |
| |
| #include <proto/acl.h> |
| #include <proto/arg.h> |
| #include <proto/connection.h> |
| #include <proto/fd.h> |
| #include <proto/freq_ctr.h> |
| #include <proto/frontend.h> |
| #include <proto/listener.h> |
| #include <proto/pattern.h> |
| #include <proto/server.h> |
| #include <proto/log.h> |
| #include <proto/proxy.h> |
| #include <proto/shctx.h> |
| #include <proto/ssl_sock.h> |
| #include <proto/task.h> |
| |
| #define SSL_SOCK_ST_FL_VERIFY_DONE 0x00000001 |
| /* bits 0xFFFF0000 are reserved to store verify errors */ |
| |
| /* Verify errors macros */ |
| #define SSL_SOCK_CA_ERROR_TO_ST(e) (((e > 63) ? 63 : e) << (16)) |
| #define SSL_SOCK_CAEDEPTH_TO_ST(d) (((d > 15) ? 15 : d) << (6+16)) |
| #define SSL_SOCK_CRTERROR_TO_ST(e) (((e > 63) ? 63 : e) << (4+6+16)) |
| |
| #define SSL_SOCK_ST_TO_CA_ERROR(s) ((s >> (16)) & 63) |
| #define SSL_SOCK_ST_TO_CAEDEPTH(s) ((s >> (6+16)) & 15) |
| #define SSL_SOCK_ST_TO_CRTERROR(s) ((s >> (4+6+16)) & 63) |
| |
| static int sslconns = 0; |
| |
| void ssl_sock_infocbk(const SSL *ssl, int where, int ret) |
| { |
| struct connection *conn = (struct connection *)SSL_get_app_data(ssl); |
| (void)ret; /* shut gcc stupid warning */ |
| |
| if (where & SSL_CB_HANDSHAKE_START) { |
| /* Disable renegotiation (CVE-2009-3555) */ |
| if (conn->flags & CO_FL_CONNECTED) { |
| conn->flags |= CO_FL_ERROR; |
| conn->err_code = CO_ER_SSL_RENEG; |
| } |
| } |
| } |
| |
| /* Callback is called for each certificate of the chain during a verify |
| ok is set to 1 if preverify detect no error on current certificate. |
| Returns 0 to break the handshake, 1 otherwise. */ |
| int ssl_sock_bind_verifycbk(int ok, X509_STORE_CTX *x_store) |
| { |
| SSL *ssl; |
| struct connection *conn; |
| int err, depth; |
| |
| ssl = X509_STORE_CTX_get_ex_data(x_store, SSL_get_ex_data_X509_STORE_CTX_idx()); |
| conn = (struct connection *)SSL_get_app_data(ssl); |
| |
| conn->xprt_st |= SSL_SOCK_ST_FL_VERIFY_DONE; |
| |
| if (ok) /* no errors */ |
| return ok; |
| |
| depth = X509_STORE_CTX_get_error_depth(x_store); |
| err = X509_STORE_CTX_get_error(x_store); |
| |
| /* check if CA error needs to be ignored */ |
| if (depth > 0) { |
| if (!SSL_SOCK_ST_TO_CA_ERROR(conn->xprt_st)) { |
| conn->xprt_st |= SSL_SOCK_CA_ERROR_TO_ST(err); |
| conn->xprt_st |= SSL_SOCK_CAEDEPTH_TO_ST(depth); |
| } |
| |
| if (objt_listener(conn->target)->bind_conf->ca_ignerr & (1ULL << err)) { |
| ERR_clear_error(); |
| return 1; |
| } |
| |
| conn->err_code = CO_ER_SSL_CA_FAIL; |
| return 0; |
| } |
| |
| if (!SSL_SOCK_ST_TO_CRTERROR(conn->xprt_st)) |
| conn->xprt_st |= SSL_SOCK_CRTERROR_TO_ST(err); |
| |
| /* check if certificate error needs to be ignored */ |
| if (objt_listener(conn->target)->bind_conf->crt_ignerr & (1ULL << err)) { |
| ERR_clear_error(); |
| return 1; |
| } |
| |
| conn->err_code = CO_ER_SSL_CRT_FAIL; |
| return 0; |
| } |
| |
| #ifdef OPENSSL_NPN_NEGOTIATED |
| /* This callback is used so that the server advertises the list of |
| * negociable protocols for NPN. |
| */ |
| static int ssl_sock_advertise_npn_protos(SSL *s, const unsigned char **data, |
| unsigned int *len, void *arg) |
| { |
| struct bind_conf *conf = arg; |
| |
| *data = (const unsigned char *)conf->npn_str; |
| *len = conf->npn_len; |
| return SSL_TLSEXT_ERR_OK; |
| } |
| #endif |
| |
| #ifdef OPENSSL_ALPN_NEGOTIATED |
| /* This callback is used so that the server advertises the list of |
| * negociable protocols for ALPN. |
| */ |
| static int ssl_sock_advertise_alpn_protos(SSL *s, const unsigned char **data, |
| unsigned int *len, void *arg) |
| { |
| struct bind_conf *conf = arg; |
| |
| *data = (const unsigned char *)conf->alpn_str; |
| *len = conf->alpn_len; |
| return SSL_TLSEXT_ERR_OK; |
| } |
| #endif |
| |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| /* Sets the SSL ctx of <ssl> to match the advertised server name. Returns a |
| * warning when no match is found, which implies the default (first) cert |
| * will keep being used. |
| */ |
| static int ssl_sock_switchctx_cbk(SSL *ssl, int *al, struct bind_conf *s) |
| { |
| const char *servername; |
| const char *wildp = NULL; |
| struct ebmb_node *node, *n; |
| int i; |
| (void)al; /* shut gcc stupid warning */ |
| |
| servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name); |
| if (!servername) { |
| return (s->strict_sni ? |
| SSL_TLSEXT_ERR_ALERT_FATAL : |
| SSL_TLSEXT_ERR_NOACK); |
| } |
| |
| for (i = 0; i < trash.size; i++) { |
| if (!servername[i]) |
| break; |
| trash.str[i] = tolower(servername[i]); |
| if (!wildp && (trash.str[i] == '.')) |
| wildp = &trash.str[i]; |
| } |
| trash.str[i] = 0; |
| |
| /* lookup in full qualified names */ |
| node = ebst_lookup(&s->sni_ctx, trash.str); |
| |
| /* lookup a not neg filter */ |
| for (n = node; n; n = ebmb_next_dup(n)) { |
| if (!container_of(n, struct sni_ctx, name)->neg) { |
| node = n; |
| break; |
| } |
| } |
| if (!node && wildp) { |
| /* lookup in wildcards names */ |
| node = ebst_lookup(&s->sni_w_ctx, wildp); |
| } |
| if (!node || container_of(node, struct sni_ctx, name)->neg) { |
| return (s->strict_sni ? |
| SSL_TLSEXT_ERR_ALERT_FATAL : |
| SSL_TLSEXT_ERR_ALERT_WARNING); |
| } |
| |
| /* switch ctx */ |
| SSL_set_SSL_CTX(ssl, container_of(node, struct sni_ctx, name)->ctx); |
| return SSL_TLSEXT_ERR_OK; |
| } |
| #endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */ |
| |
| #ifndef OPENSSL_NO_DH |
| /* Loads Diffie-Hellman parameter from a file. Returns 1 if loaded, else -1 |
| if an error occured, and 0 if parameter not found. */ |
| int ssl_sock_load_dh_params(SSL_CTX *ctx, const char *file) |
| { |
| int ret = -1; |
| BIO *in; |
| DH *dh = NULL; |
| /* If not present, use parameters generated using 'openssl dhparam 1024 -C': |
| * -----BEGIN DH PARAMETERS----- |
| * MIGHAoGBAJJAJDXDoS5E03MNjnjK36eOL1tRqVa/9NuOVlI+lpXmPjJQbP65EvKn |
| * fSLnG7VMhoCJO4KtG88zf393ltP7loGB2bofcDSr+x+XsxBM8yA/Zj6BmQt+CQ9s |
| * TF7hoOV+wXTT6ErZ5y5qx9pq6hLfKXwTGFT78hrE6HnCO7xgtPdTAgEC |
| * -----END DH PARAMETERS----- |
| */ |
| static const unsigned char dh1024_p[] = { |
| 0x92, 0x40, 0x24, 0x35, 0xC3, 0xA1, 0x2E, 0x44, 0xD3, 0x73, 0x0D, 0x8E, |
| 0x78, 0xCA, 0xDF, 0xA7, 0x8E, 0x2F, 0x5B, 0x51, 0xA9, 0x56, 0xBF, 0xF4, |
| 0xDB, 0x8E, 0x56, 0x52, 0x3E, 0x96, 0x95, 0xE6, 0x3E, 0x32, 0x50, 0x6C, |
| 0xFE, 0xB9, 0x12, 0xF2, 0xA7, 0x7D, 0x22, 0xE7, 0x1B, 0xB5, 0x4C, 0x86, |
| 0x80, 0x89, 0x3B, 0x82, 0xAD, 0x1B, 0xCF, 0x33, 0x7F, 0x7F, 0x77, 0x96, |
| 0xD3, 0xFB, 0x96, 0x81, 0x81, 0xD9, 0xBA, 0x1F, 0x70, 0x34, 0xAB, 0xFB, |
| 0x1F, 0x97, 0xB3, 0x10, 0x4C, 0xF3, 0x20, 0x3F, 0x66, 0x3E, 0x81, 0x99, |
| 0x0B, 0x7E, 0x09, 0x0F, 0x6C, 0x4C, 0x5E, 0xE1, 0xA0, 0xE5, 0x7E, 0xC1, |
| 0x74, 0xD3, 0xE8, 0x4A, 0xD9, 0xE7, 0x2E, 0x6A, 0xC7, 0xDA, 0x6A, 0xEA, |
| 0x12, 0xDF, 0x29, 0x7C, 0x13, 0x18, 0x54, 0xFB, 0xF2, 0x1A, 0xC4, 0xE8, |
| 0x79, 0xC2, 0x3B, 0xBC, 0x60, 0xB4, 0xF7, 0x53, |
| }; |
| static const unsigned char dh1024_g[] = { |
| 0x02, |
| }; |
| |
| in = BIO_new(BIO_s_file()); |
| if (in == NULL) |
| goto end; |
| |
| if (BIO_read_filename(in, file) <= 0) |
| goto end; |
| |
| dh = PEM_read_bio_DHparams(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata); |
| if (!dh) { |
| /* Clear openssl global errors stack */ |
| ERR_clear_error(); |
| |
| dh = DH_new(); |
| if (dh == NULL) |
| goto end; |
| |
| dh->p = BN_bin2bn(dh1024_p, sizeof(dh1024_p), NULL); |
| if (dh->p == NULL) |
| goto end; |
| |
| dh->g = BN_bin2bn(dh1024_g, sizeof(dh1024_g), NULL); |
| if (dh->g == NULL) |
| goto end; |
| |
| ret = 0; /* DH params not found */ |
| } |
| else |
| ret = 1; |
| |
| SSL_CTX_set_tmp_dh(ctx, dh); |
| |
| end: |
| if (dh) |
| DH_free(dh); |
| |
| if (in) |
| BIO_free(in); |
| |
| return ret; |
| } |
| #endif |
| |
| static int ssl_sock_add_cert_sni(SSL_CTX *ctx, struct bind_conf *s, char *name, int order) |
| { |
| struct sni_ctx *sc; |
| int wild = 0, neg = 0; |
| |
| if (*name == '!') { |
| neg = 1; |
| name++; |
| } |
| if (*name == '*') { |
| wild = 1; |
| name++; |
| } |
| /* !* filter is a nop */ |
| if (neg && wild) |
| return order; |
| if (*name) { |
| int j, len; |
| len = strlen(name); |
| sc = malloc(sizeof(struct sni_ctx) + len + 1); |
| for (j = 0; j < len; j++) |
| sc->name.key[j] = tolower(name[j]); |
| sc->name.key[len] = 0; |
| sc->ctx = ctx; |
| sc->order = order++; |
| sc->neg = neg; |
| if (wild) |
| ebst_insert(&s->sni_w_ctx, &sc->name); |
| else |
| ebst_insert(&s->sni_ctx, &sc->name); |
| } |
| return order; |
| } |
| |
| /* Loads a certificate key and CA chain from a file. Returns 0 on error, -1 if |
| * an early error happens and the caller must call SSL_CTX_free() by itelf. |
| */ |
| static int ssl_sock_load_cert_chain_file(SSL_CTX *ctx, const char *file, struct bind_conf *s, char **sni_filter, int fcount) |
| { |
| BIO *in; |
| X509 *x = NULL, *ca; |
| int i, err; |
| int ret = -1; |
| int order = 0; |
| X509_NAME *xname; |
| char *str; |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| STACK_OF(GENERAL_NAME) *names; |
| #endif |
| |
| in = BIO_new(BIO_s_file()); |
| if (in == NULL) |
| goto end; |
| |
| if (BIO_read_filename(in, file) <= 0) |
| goto end; |
| |
| x = PEM_read_bio_X509_AUX(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata); |
| if (x == NULL) |
| goto end; |
| |
| if (fcount) { |
| while (fcount--) |
| order = ssl_sock_add_cert_sni(ctx, s, sni_filter[fcount], order); |
| } |
| else { |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| names = X509_get_ext_d2i(x, 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 (name->type == GEN_DNS) { |
| if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) { |
| order = ssl_sock_add_cert_sni(ctx, s, str, order); |
| OPENSSL_free(str); |
| } |
| } |
| } |
| sk_GENERAL_NAME_pop_free(names, GENERAL_NAME_free); |
| } |
| #endif /* SSL_CTRL_SET_TLSEXT_HOSTNAME */ |
| xname = X509_get_subject_name(x); |
| i = -1; |
| while ((i = X509_NAME_get_index_by_NID(xname, NID_commonName, i)) != -1) { |
| X509_NAME_ENTRY *entry = X509_NAME_get_entry(xname, i); |
| if (ASN1_STRING_to_UTF8((unsigned char **)&str, entry->value) >= 0) { |
| order = ssl_sock_add_cert_sni(ctx, s, str, order); |
| OPENSSL_free(str); |
| } |
| } |
| } |
| |
| ret = 0; /* the caller must not free the SSL_CTX argument anymore */ |
| if (!SSL_CTX_use_certificate(ctx, x)) |
| goto end; |
| |
| if (ctx->extra_certs != NULL) { |
| sk_X509_pop_free(ctx->extra_certs, X509_free); |
| ctx->extra_certs = NULL; |
| } |
| |
| while ((ca = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback, ctx->default_passwd_callback_userdata))) { |
| if (!SSL_CTX_add_extra_chain_cert(ctx, ca)) { |
| X509_free(ca); |
| goto end; |
| } |
| } |
| |
| err = ERR_get_error(); |
| if (!err || (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)) { |
| /* we successfully reached the last cert in the file */ |
| ret = 1; |
| } |
| ERR_clear_error(); |
| |
| end: |
| if (x) |
| X509_free(x); |
| |
| if (in) |
| BIO_free(in); |
| |
| return ret; |
| } |
| |
| static int ssl_sock_load_cert_file(const char *path, struct bind_conf *bind_conf, struct proxy *curproxy, char **sni_filter, int fcount, char **err) |
| { |
| int ret; |
| SSL_CTX *ctx; |
| |
| ctx = SSL_CTX_new(SSLv23_server_method()); |
| if (!ctx) { |
| memprintf(err, "%sunable to allocate SSL context for cert '%s'.\n", |
| err && *err ? *err : "", path); |
| return 1; |
| } |
| |
| if (SSL_CTX_use_PrivateKey_file(ctx, path, SSL_FILETYPE_PEM) <= 0) { |
| memprintf(err, "%sunable to load SSL private key from PEM file '%s'.\n", |
| err && *err ? *err : "", path); |
| SSL_CTX_free(ctx); |
| return 1; |
| } |
| |
| ret = ssl_sock_load_cert_chain_file(ctx, path, bind_conf, sni_filter, fcount); |
| if (ret <= 0) { |
| memprintf(err, "%sunable to load SSL certificate from PEM file '%s'.\n", |
| err && *err ? *err : "", path); |
| if (ret < 0) /* serious error, must do that ourselves */ |
| SSL_CTX_free(ctx); |
| return 1; |
| } |
| |
| if (SSL_CTX_check_private_key(ctx) <= 0) { |
| memprintf(err, "%sinconsistencies between private key and certificate loaded from PEM file '%s'.\n", |
| err && *err ? *err : "", path); |
| return 1; |
| } |
| |
| /* we must not free the SSL_CTX anymore below, since it's already in |
| * the tree, so it will be discovered and cleaned in time. |
| */ |
| #ifndef OPENSSL_NO_DH |
| ret = ssl_sock_load_dh_params(ctx, path); |
| if (ret < 0) { |
| if (err) |
| memprintf(err, "%sunable to load DH parameters from file '%s'.\n", |
| *err ? *err : "", path); |
| return 1; |
| } |
| #endif |
| |
| #ifndef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| if (bind_conf->default_ctx) { |
| memprintf(err, "%sthis version of openssl cannot load multiple SSL certificates.\n", |
| err && *err ? *err : ""); |
| return 1; |
| } |
| #endif |
| if (!bind_conf->default_ctx) |
| bind_conf->default_ctx = ctx; |
| |
| return 0; |
| } |
| |
| int ssl_sock_load_cert(char *path, struct bind_conf *bind_conf, struct proxy *curproxy, char **err) |
| { |
| struct dirent *de; |
| DIR *dir; |
| struct stat buf; |
| char *end; |
| char fp[MAXPATHLEN+1]; |
| int cfgerr = 0; |
| |
| if (!(dir = opendir(path))) |
| return ssl_sock_load_cert_file(path, bind_conf, curproxy, NULL, 0, err); |
| |
| /* strip trailing slashes, including first one */ |
| for (end = path + strlen(path) - 1; end >= path && *end == '/'; end--) |
| *end = 0; |
| |
| while ((de = readdir(dir))) { |
| snprintf(fp, sizeof(fp), "%s/%s", path, de->d_name); |
| if (stat(fp, &buf) != 0) { |
| memprintf(err, "%sunable to stat SSL certificate from file '%s' : %s.\n", |
| err && *err ? *err : "", fp, strerror(errno)); |
| cfgerr++; |
| continue; |
| } |
| if (!S_ISREG(buf.st_mode)) |
| continue; |
| cfgerr += ssl_sock_load_cert_file(fp, bind_conf, curproxy, NULL, 0, err); |
| } |
| closedir(dir); |
| return cfgerr; |
| } |
| |
| /* Make sure openssl opens /dev/urandom before the chroot. The work is only |
| * done once. Zero is returned if the operation fails. No error is returned |
| * if the random is said as not implemented, because we expect that openssl |
| * will use another method once needed. |
| */ |
| static int ssl_initialize_random() |
| { |
| unsigned char random; |
| static int random_initialized = 0; |
| |
| if (!random_initialized && RAND_bytes(&random, 1) != 0) |
| random_initialized = 1; |
| |
| return random_initialized; |
| } |
| |
| int ssl_sock_load_cert_list_file(char *file, struct bind_conf *bind_conf, struct proxy *curproxy, char **err) |
| { |
| char thisline[LINESIZE]; |
| FILE *f; |
| int linenum = 0; |
| int cfgerr = 0; |
| |
| if ((f = fopen(file, "r")) == NULL) { |
| memprintf(err, "cannot open file '%s' : %s", file, strerror(errno)); |
| return 1; |
| } |
| |
| while (fgets(thisline, sizeof(thisline), f) != NULL) { |
| int arg; |
| int newarg; |
| char *end; |
| char *args[MAX_LINE_ARGS + 1]; |
| char *line = thisline; |
| |
| linenum++; |
| end = line + strlen(line); |
| if (end-line == sizeof(thisline)-1 && *(end-1) != '\n') { |
| /* Check if we reached the limit and the last char is not \n. |
| * Watch out for the last line without the terminating '\n'! |
| */ |
| memprintf(err, "line %d too long in file '%s', limit is %d characters", |
| linenum, file, (int)sizeof(thisline)-1); |
| cfgerr = 1; |
| break; |
| } |
| |
| arg = 0; |
| newarg = 1; |
| while (*line) { |
| if (*line == '#' || *line == '\n' || *line == '\r') { |
| /* end of string, end of loop */ |
| *line = 0; |
| break; |
| } |
| else if (isspace(*line)) { |
| newarg = 1; |
| *line = 0; |
| } |
| else if (newarg) { |
| if (arg == MAX_LINE_ARGS) { |
| memprintf(err, "too many args on line %d in file '%s'.", |
| linenum, file); |
| cfgerr = 1; |
| break; |
| } |
| newarg = 0; |
| args[arg++] = line; |
| } |
| line++; |
| } |
| if (cfgerr) |
| break; |
| |
| /* empty line */ |
| if (!arg) |
| continue; |
| |
| cfgerr = ssl_sock_load_cert_file(args[0], bind_conf, curproxy, &args[1], arg-1, err); |
| if (cfgerr) { |
| memprintf(err, "error processing line %d in file '%s' : %s", linenum, file, *err); |
| break; |
| } |
| } |
| fclose(f); |
| return cfgerr; |
| } |
| |
| #ifndef SSL_OP_CIPHER_SERVER_PREFERENCE /* needs OpenSSL >= 0.9.7 */ |
| #define SSL_OP_CIPHER_SERVER_PREFERENCE 0 |
| #endif |
| |
| #ifndef SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION /* needs OpenSSL >= 0.9.7 */ |
| #define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION 0 |
| #define SSL_renegotiate_pending(arg) 0 |
| #endif |
| #ifndef SSL_OP_SINGLE_ECDH_USE /* needs OpenSSL >= 0.9.8 */ |
| #define SSL_OP_SINGLE_ECDH_USE 0 |
| #endif |
| #ifndef SSL_OP_NO_TICKET /* needs OpenSSL >= 0.9.8 */ |
| #define SSL_OP_NO_TICKET 0 |
| #endif |
| #ifndef SSL_OP_NO_COMPRESSION /* needs OpenSSL >= 0.9.9 */ |
| #define SSL_OP_NO_COMPRESSION 0 |
| #endif |
| #ifndef SSL_OP_NO_TLSv1_1 /* needs OpenSSL >= 1.0.1 */ |
| #define SSL_OP_NO_TLSv1_1 0 |
| #endif |
| #ifndef SSL_OP_NO_TLSv1_2 /* needs OpenSSL >= 1.0.1 */ |
| #define SSL_OP_NO_TLSv1_2 0 |
| #endif |
| #ifndef SSL_OP_SINGLE_DH_USE /* needs OpenSSL >= 0.9.6 */ |
| #define SSL_OP_SINGLE_DH_USE 0 |
| #endif |
| #ifndef SSL_OP_SINGLE_ECDH_USE /* needs OpenSSL >= 1.0.0 */ |
| #define SSL_OP_SINGLE_ECDH_USE 0 |
| #endif |
| #ifndef SSL_MODE_RELEASE_BUFFERS /* needs OpenSSL >= 1.0.0 */ |
| #define SSL_MODE_RELEASE_BUFFERS 0 |
| #endif |
| int ssl_sock_prepare_ctx(struct bind_conf *bind_conf, SSL_CTX *ctx, struct proxy *curproxy) |
| { |
| int cfgerr = 0; |
| int ssloptions = |
| SSL_OP_ALL | /* all known workarounds for bugs */ |
| SSL_OP_NO_SSLv2 | |
| SSL_OP_NO_COMPRESSION | |
| SSL_OP_SINGLE_DH_USE | |
| SSL_OP_SINGLE_ECDH_USE | |
| SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION | |
| SSL_OP_CIPHER_SERVER_PREFERENCE; |
| int sslmode = |
| SSL_MODE_ENABLE_PARTIAL_WRITE | |
| SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER | |
| SSL_MODE_RELEASE_BUFFERS; |
| |
| /* Make sure openssl opens /dev/urandom before the chroot */ |
| if (!ssl_initialize_random()) { |
| Alert("OpenSSL random data generator initialization failed.\n"); |
| cfgerr++; |
| } |
| |
| if (bind_conf->ssl_options & BC_SSL_O_NO_SSLV3) |
| ssloptions |= SSL_OP_NO_SSLv3; |
| if (bind_conf->ssl_options & BC_SSL_O_NO_TLSV10) |
| ssloptions |= SSL_OP_NO_TLSv1; |
| if (bind_conf->ssl_options & BC_SSL_O_NO_TLSV11) |
| ssloptions |= SSL_OP_NO_TLSv1_1; |
| if (bind_conf->ssl_options & BC_SSL_O_NO_TLSV12) |
| ssloptions |= SSL_OP_NO_TLSv1_2; |
| if (bind_conf->ssl_options & BC_SSL_O_NO_TLS_TICKETS) |
| ssloptions |= SSL_OP_NO_TICKET; |
| if (bind_conf->ssl_options & BC_SSL_O_USE_SSLV3) |
| SSL_CTX_set_ssl_version(ctx, SSLv3_server_method()); |
| if (bind_conf->ssl_options & BC_SSL_O_USE_TLSV10) |
| SSL_CTX_set_ssl_version(ctx, TLSv1_server_method()); |
| #if SSL_OP_NO_TLSv1_1 |
| if (bind_conf->ssl_options & BC_SSL_O_USE_TLSV11) |
| SSL_CTX_set_ssl_version(ctx, TLSv1_1_server_method()); |
| #endif |
| #if SSL_OP_NO_TLSv1_2 |
| if (bind_conf->ssl_options & BC_SSL_O_USE_TLSV12) |
| SSL_CTX_set_ssl_version(ctx, TLSv1_2_server_method()); |
| #endif |
| |
| SSL_CTX_set_options(ctx, ssloptions); |
| SSL_CTX_set_mode(ctx, sslmode); |
| SSL_CTX_set_verify(ctx, bind_conf->verify ? bind_conf->verify : SSL_VERIFY_NONE, ssl_sock_bind_verifycbk); |
| if (bind_conf->verify & SSL_VERIFY_PEER) { |
| if (bind_conf->ca_file) { |
| /* load CAfile to verify */ |
| if (!SSL_CTX_load_verify_locations(ctx, bind_conf->ca_file, NULL)) { |
| Alert("Proxy '%s': unable to load CA file '%s' for bind '%s' at [%s:%d].\n", |
| curproxy->id, bind_conf->ca_file, bind_conf->arg, bind_conf->file, bind_conf->line); |
| cfgerr++; |
| } |
| /* set CA names fo client cert request, function returns void */ |
| SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(bind_conf->ca_file)); |
| } |
| #ifdef X509_V_FLAG_CRL_CHECK |
| if (bind_conf->crl_file) { |
| X509_STORE *store = SSL_CTX_get_cert_store(ctx); |
| |
| if (!store || !X509_STORE_load_locations(store, bind_conf->crl_file, NULL)) { |
| Alert("Proxy '%s': unable to configure CRL file '%s' for bind '%s' at [%s:%d].\n", |
| curproxy->id, bind_conf->ca_file, bind_conf->arg, bind_conf->file, bind_conf->line); |
| cfgerr++; |
| } |
| else { |
| X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL); |
| } |
| } |
| #endif |
| ERR_clear_error(); |
| } |
| |
| if (global.tune.ssllifetime) |
| SSL_CTX_set_timeout(ctx, global.tune.ssllifetime); |
| |
| shared_context_set_cache(ctx); |
| if (bind_conf->ciphers && |
| !SSL_CTX_set_cipher_list(ctx, bind_conf->ciphers)) { |
| Alert("Proxy '%s': unable to set SSL cipher list to '%s' for bind '%s' at [%s:%d].\n", |
| curproxy->id, bind_conf->ciphers, bind_conf->arg, bind_conf->file, bind_conf->line); |
| cfgerr++; |
| } |
| |
| SSL_CTX_set_info_callback(ctx, ssl_sock_infocbk); |
| #ifdef OPENSSL_NPN_NEGOTIATED |
| if (bind_conf->npn_str) |
| SSL_CTX_set_next_protos_advertised_cb(ctx, ssl_sock_advertise_npn_protos, bind_conf); |
| #endif |
| #ifdef OPENSSL_ALPN_NEGOTIATED |
| if (bind_conf->alpn_str) |
| SSL_CTX_set_alpn_advertised_cb(ctx, ssl_sock_advertise_alpn_protos, bind_conf); |
| #endif |
| |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| SSL_CTX_set_tlsext_servername_callback(ctx, ssl_sock_switchctx_cbk); |
| SSL_CTX_set_tlsext_servername_arg(ctx, bind_conf); |
| #endif |
| #if defined(SSL_CTX_set_tmp_ecdh) && !defined(OPENSSL_NO_ECDH) |
| { |
| int i; |
| EC_KEY *ecdh; |
| |
| i = OBJ_sn2nid(bind_conf->ecdhe ? bind_conf->ecdhe : ECDHE_DEFAULT_CURVE); |
| if (!i || ((ecdh = EC_KEY_new_by_curve_name(i)) == NULL)) { |
| Alert("Proxy '%s': unable to set elliptic named curve to '%s' for bind '%s' at [%s:%d].\n", |
| curproxy->id, bind_conf->ecdhe ? bind_conf->ecdhe : ECDHE_DEFAULT_CURVE, |
| bind_conf->arg, bind_conf->file, bind_conf->line); |
| cfgerr++; |
| } |
| else { |
| SSL_CTX_set_tmp_ecdh(ctx, ecdh); |
| EC_KEY_free(ecdh); |
| } |
| } |
| #endif |
| |
| return cfgerr; |
| } |
| |
| static int ssl_sock_srv_hostcheck(const char *pattern, const char *hostname) |
| { |
| const char *pattern_wildcard, *pattern_left_label_end, *hostname_left_label_end; |
| size_t prefixlen, suffixlen; |
| |
| /* Trivial case */ |
| if (strcmp(pattern, hostname) == 0) |
| return 1; |
| |
| /* The rest of this logic is based on RFC 6125, section 6.4.3 |
| * (http://tools.ietf.org/html/rfc6125#section-6.4.3) */ |
| |
| pattern_wildcard = NULL; |
| pattern_left_label_end = pattern; |
| while (*pattern_left_label_end != '.') { |
| switch (*pattern_left_label_end) { |
| case 0: |
| /* End of label not found */ |
| return 0; |
| case '*': |
| /* If there is more than one wildcards */ |
| if (pattern_wildcard) |
| return 0; |
| pattern_wildcard = pattern_left_label_end; |
| break; |
| } |
| pattern_left_label_end++; |
| } |
| |
| /* If it's not trivial and there is no wildcard, it can't |
| * match */ |
| if (!pattern_wildcard) |
| return 0; |
| |
| /* Make sure all labels match except the leftmost */ |
| hostname_left_label_end = strchr(hostname, '.'); |
| if (!hostname_left_label_end |
| || strcmp(pattern_left_label_end, hostname_left_label_end) != 0) |
| return 0; |
| |
| /* Make sure the leftmost label of the hostname is long enough |
| * that the wildcard can match */ |
| if (hostname_left_label_end - hostname < (pattern_left_label_end - pattern) - 1) |
| return 0; |
| |
| /* Finally compare the string on either side of the |
| * wildcard */ |
| prefixlen = pattern_wildcard - pattern; |
| suffixlen = pattern_left_label_end - (pattern_wildcard + 1); |
| if ((prefixlen && (memcmp(pattern, hostname, prefixlen) != 0)) |
| || (suffixlen && (memcmp(pattern_wildcard + 1, hostname_left_label_end - suffixlen, suffixlen) != 0))) |
| return 0; |
| |
| return 1; |
| } |
| |
| static int ssl_sock_srv_verifycbk(int ok, X509_STORE_CTX *ctx) |
| { |
| SSL *ssl; |
| struct connection *conn; |
| char *servername; |
| |
| int depth; |
| X509 *cert; |
| STACK_OF(GENERAL_NAME) *alt_names; |
| int i; |
| X509_NAME *cert_subject; |
| char *str; |
| |
| if (ok == 0) |
| return ok; |
| |
| ssl = X509_STORE_CTX_get_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx()); |
| conn = (struct connection *)SSL_get_app_data(ssl); |
| |
| servername = objt_server(conn->target)->ssl_ctx.verify_host; |
| |
| /* We only need to verify the CN on the actual server cert, |
| * not the indirect CAs */ |
| depth = X509_STORE_CTX_get_error_depth(ctx); |
| if (depth != 0) |
| return ok; |
| |
| /* At this point, the cert is *not* OK unless we can find a |
| * hostname match */ |
| ok = 0; |
| |
| cert = X509_STORE_CTX_get_current_cert(ctx); |
| /* It seems like this might happen if verify peer isn't set */ |
| if (!cert) |
| return ok; |
| |
| alt_names = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL); |
| if (alt_names) { |
| for (i = 0; !ok && i < sk_GENERAL_NAME_num(alt_names); i++) { |
| GENERAL_NAME *name = sk_GENERAL_NAME_value(alt_names, i); |
| if (name->type == GEN_DNS) { |
| #if OPENSSL_VERSION_NUMBER < 0x00907000L |
| if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.ia5) >= 0) { |
| #else |
| if (ASN1_STRING_to_UTF8((unsigned char **)&str, name->d.dNSName) >= 0) { |
| #endif |
| ok = ssl_sock_srv_hostcheck(str, servername); |
| OPENSSL_free(str); |
| } |
| } |
| } |
| sk_GENERAL_NAME_pop_free(alt_names, GENERAL_NAME_free); |
| } |
| |
| cert_subject = X509_get_subject_name(cert); |
| i = -1; |
| while (!ok && (i = X509_NAME_get_index_by_NID(cert_subject, NID_commonName, i)) != -1) { |
| X509_NAME_ENTRY *entry = X509_NAME_get_entry(cert_subject, i); |
| if (ASN1_STRING_to_UTF8((unsigned char **)&str, entry->value) >= 0) { |
| ok = ssl_sock_srv_hostcheck(str, servername); |
| OPENSSL_free(str); |
| } |
| } |
| |
| return ok; |
| } |
| |
| /* prepare ssl context from servers options. Returns an error count */ |
| int ssl_sock_prepare_srv_ctx(struct server *srv, struct proxy *curproxy) |
| { |
| int cfgerr = 0; |
| int options = |
| SSL_OP_ALL | /* all known workarounds for bugs */ |
| SSL_OP_NO_SSLv2 | |
| SSL_OP_NO_COMPRESSION; |
| int mode = |
| SSL_MODE_ENABLE_PARTIAL_WRITE | |
| SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER | |
| SSL_MODE_RELEASE_BUFFERS; |
| |
| /* Make sure openssl opens /dev/urandom before the chroot */ |
| if (!ssl_initialize_random()) { |
| Alert("OpenSSL random data generator initialization failed.\n"); |
| cfgerr++; |
| } |
| |
| /* Initiate SSL context for current server */ |
| srv->ssl_ctx.reused_sess = NULL; |
| if (srv->use_ssl) |
| srv->xprt = &ssl_sock; |
| if (srv->check.use_ssl) |
| srv->check_common.xprt = &ssl_sock; |
| |
| srv->ssl_ctx.ctx = SSL_CTX_new(SSLv23_client_method()); |
| if (!srv->ssl_ctx.ctx) { |
| Alert("config : %s '%s', server '%s': unable to allocate ssl context.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| srv->id); |
| cfgerr++; |
| return cfgerr; |
| } |
| if (srv->ssl_ctx.client_crt) { |
| if (SSL_CTX_use_PrivateKey_file(srv->ssl_ctx.ctx, srv->ssl_ctx.client_crt, SSL_FILETYPE_PEM) <= 0) { |
| Alert("config : %s '%s', server '%s': unable to load SSL private key from PEM file '%s'.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| srv->id, srv->ssl_ctx.client_crt); |
| cfgerr++; |
| } |
| else if (SSL_CTX_use_certificate_chain_file(srv->ssl_ctx.ctx, srv->ssl_ctx.client_crt) <= 0) { |
| Alert("config : %s '%s', server '%s': unable to load ssl certificate from PEM file '%s'.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| srv->id, srv->ssl_ctx.client_crt); |
| cfgerr++; |
| } |
| else if (SSL_CTX_check_private_key(srv->ssl_ctx.ctx) <= 0) { |
| Alert("config : %s '%s', server '%s': inconsistencies between private key and certificate loaded from PEM file '%s'.\n", |
| proxy_type_str(curproxy), curproxy->id, |
| srv->id, srv->ssl_ctx.client_crt); |
| cfgerr++; |
| } |
| } |
| |
| if (srv->ssl_ctx.options & SRV_SSL_O_NO_SSLV3) |
| options |= SSL_OP_NO_SSLv3; |
| if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLSV10) |
| options |= SSL_OP_NO_TLSv1; |
| if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLSV11) |
| options |= SSL_OP_NO_TLSv1_1; |
| if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLSV12) |
| options |= SSL_OP_NO_TLSv1_2; |
| if (srv->ssl_ctx.options & SRV_SSL_O_NO_TLS_TICKETS) |
| options |= SSL_OP_NO_TICKET; |
| if (srv->ssl_ctx.options & SRV_SSL_O_USE_SSLV3) |
| SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, SSLv3_client_method()); |
| if (srv->ssl_ctx.options & SRV_SSL_O_USE_TLSV10) |
| SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, TLSv1_client_method()); |
| #if SSL_OP_NO_TLSv1_1 |
| if (srv->ssl_ctx.options & SRV_SSL_O_USE_TLSV11) |
| SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, TLSv1_1_client_method()); |
| #endif |
| #if SSL_OP_NO_TLSv1_2 |
| if (srv->ssl_ctx.options & SRV_SSL_O_USE_TLSV12) |
| SSL_CTX_set_ssl_version(srv->ssl_ctx.ctx, TLSv1_2_client_method()); |
| #endif |
| |
| SSL_CTX_set_options(srv->ssl_ctx.ctx, options); |
| SSL_CTX_set_mode(srv->ssl_ctx.ctx, mode); |
| SSL_CTX_set_verify(srv->ssl_ctx.ctx, |
| srv->ssl_ctx.verify ? srv->ssl_ctx.verify : SSL_VERIFY_NONE, |
| srv->ssl_ctx.verify_host ? ssl_sock_srv_verifycbk : NULL); |
| if (srv->ssl_ctx.verify & SSL_VERIFY_PEER) { |
| if (srv->ssl_ctx.ca_file) { |
| /* load CAfile to verify */ |
| if (!SSL_CTX_load_verify_locations(srv->ssl_ctx.ctx, srv->ssl_ctx.ca_file, NULL)) { |
| Alert("Proxy '%s', server '%s' |%s:%d] unable to load CA file '%s'.\n", |
| curproxy->id, srv->id, |
| srv->conf.file, srv->conf.line, srv->ssl_ctx.ca_file); |
| cfgerr++; |
| } |
| } |
| #ifdef X509_V_FLAG_CRL_CHECK |
| if (srv->ssl_ctx.crl_file) { |
| X509_STORE *store = SSL_CTX_get_cert_store(srv->ssl_ctx.ctx); |
| |
| if (!store || !X509_STORE_load_locations(store, srv->ssl_ctx.crl_file, NULL)) { |
| Alert("Proxy '%s', server '%s' |%s:%d] unable to configure CRL file '%s'.\n", |
| curproxy->id, srv->id, |
| srv->conf.file, srv->conf.line, srv->ssl_ctx.crl_file); |
| cfgerr++; |
| } |
| else { |
| X509_STORE_set_flags(store, X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL); |
| } |
| } |
| #endif |
| } |
| |
| if (global.tune.ssllifetime) |
| SSL_CTX_set_timeout(srv->ssl_ctx.ctx, global.tune.ssllifetime); |
| |
| SSL_CTX_set_session_cache_mode(srv->ssl_ctx.ctx, SSL_SESS_CACHE_OFF); |
| if (srv->ssl_ctx.ciphers && |
| !SSL_CTX_set_cipher_list(srv->ssl_ctx.ctx, srv->ssl_ctx.ciphers)) { |
| Alert("Proxy '%s', server '%s' [%s:%d] : unable to set SSL cipher list to '%s'.\n", |
| curproxy->id, srv->id, |
| srv->conf.file, srv->conf.line, srv->ssl_ctx.ciphers); |
| cfgerr++; |
| } |
| |
| return cfgerr; |
| } |
| |
| /* Walks down the two trees in bind_conf and prepares all certs. The pointer may |
| * be NULL, in which case nothing is done. Returns the number of errors |
| * encountered. |
| */ |
| int ssl_sock_prepare_all_ctx(struct bind_conf *bind_conf, struct proxy *px) |
| { |
| struct ebmb_node *node; |
| struct sni_ctx *sni; |
| int err = 0; |
| |
| if (!bind_conf || !bind_conf->is_ssl) |
| return 0; |
| |
| node = ebmb_first(&bind_conf->sni_ctx); |
| while (node) { |
| sni = ebmb_entry(node, struct sni_ctx, name); |
| if (!sni->order) /* only initialize the CTX on its first occurrence */ |
| err += ssl_sock_prepare_ctx(bind_conf, sni->ctx, px); |
| node = ebmb_next(node); |
| } |
| |
| node = ebmb_first(&bind_conf->sni_w_ctx); |
| while (node) { |
| sni = ebmb_entry(node, struct sni_ctx, name); |
| if (!sni->order) /* only initialize the CTX on its first occurrence */ |
| err += ssl_sock_prepare_ctx(bind_conf, sni->ctx, px); |
| node = ebmb_next(node); |
| } |
| return err; |
| } |
| |
| /* Walks down the two trees in bind_conf and frees all the certs. The pointer may |
| * be NULL, in which case nothing is done. The default_ctx is nullified too. |
| */ |
| void ssl_sock_free_all_ctx(struct bind_conf *bind_conf) |
| { |
| struct ebmb_node *node, *back; |
| struct sni_ctx *sni; |
| |
| if (!bind_conf || !bind_conf->is_ssl) |
| return; |
| |
| node = ebmb_first(&bind_conf->sni_ctx); |
| while (node) { |
| sni = ebmb_entry(node, struct sni_ctx, name); |
| back = ebmb_next(node); |
| ebmb_delete(node); |
| if (!sni->order) /* only free the CTX on its first occurrence */ |
| SSL_CTX_free(sni->ctx); |
| free(sni); |
| node = back; |
| } |
| |
| node = ebmb_first(&bind_conf->sni_w_ctx); |
| while (node) { |
| sni = ebmb_entry(node, struct sni_ctx, name); |
| back = ebmb_next(node); |
| ebmb_delete(node); |
| if (!sni->order) /* only free the CTX on its first occurrence */ |
| SSL_CTX_free(sni->ctx); |
| free(sni); |
| node = back; |
| } |
| |
| bind_conf->default_ctx = NULL; |
| } |
| |
| /* |
| * This function is called if SSL * context is not yet allocated. The function |
| * is designed to be called before any other data-layer operation and sets the |
| * handshake flag on the connection. It is safe to call it multiple times. |
| * It returns 0 on success and -1 in error case. |
| */ |
| static int ssl_sock_init(struct connection *conn) |
| { |
| /* already initialized */ |
| if (conn->xprt_ctx) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CTRL_READY)) |
| return 0; |
| |
| if (global.maxsslconn && sslconns >= global.maxsslconn) { |
| conn->err_code = CO_ER_SSL_TOO_MANY; |
| return -1; |
| } |
| |
| /* If it is in client mode initiate SSL session |
| in connect state otherwise accept state */ |
| if (objt_server(conn->target)) { |
| /* Alloc a new SSL session ctx */ |
| conn->xprt_ctx = SSL_new(objt_server(conn->target)->ssl_ctx.ctx); |
| if (!conn->xprt_ctx) { |
| conn->err_code = CO_ER_SSL_NO_MEM; |
| return -1; |
| } |
| |
| SSL_set_connect_state(conn->xprt_ctx); |
| if (objt_server(conn->target)->ssl_ctx.reused_sess) |
| SSL_set_session(conn->xprt_ctx, objt_server(conn->target)->ssl_ctx.reused_sess); |
| |
| /* set fd on SSL session context */ |
| SSL_set_fd(conn->xprt_ctx, conn->t.sock.fd); |
| |
| /* set connection pointer */ |
| SSL_set_app_data(conn->xprt_ctx, conn); |
| |
| /* leave init state and start handshake */ |
| conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN; |
| |
| sslconns++; |
| return 0; |
| } |
| else if (objt_listener(conn->target)) { |
| /* Alloc a new SSL session ctx */ |
| conn->xprt_ctx = SSL_new(objt_listener(conn->target)->bind_conf->default_ctx); |
| if (!conn->xprt_ctx) { |
| conn->err_code = CO_ER_SSL_NO_MEM; |
| return -1; |
| } |
| |
| SSL_set_accept_state(conn->xprt_ctx); |
| |
| /* set fd on SSL session context */ |
| SSL_set_fd(conn->xprt_ctx, conn->t.sock.fd); |
| |
| /* set connection pointer */ |
| SSL_set_app_data(conn->xprt_ctx, conn); |
| |
| /* leave init state and start handshake */ |
| conn->flags |= CO_FL_SSL_WAIT_HS | CO_FL_WAIT_L6_CONN; |
| |
| sslconns++; |
| return 0; |
| } |
| /* don't know how to handle such a target */ |
| conn->err_code = CO_ER_SSL_NO_TARGET; |
| return -1; |
| } |
| |
| |
| /* This is the callback which is used when an SSL handshake is pending. It |
| * updates the FD status if it wants some polling before being called again. |
| * It returns 0 if it fails in a fatal way or needs to poll to go further, |
| * otherwise it returns non-zero and removes itself from the connection's |
| * flags (the bit is provided in <flag> by the caller). |
| */ |
| int ssl_sock_handshake(struct connection *conn, unsigned int flag) |
| { |
| int ret; |
| |
| if (!(conn->flags & CO_FL_CTRL_READY)) |
| return 0; |
| |
| if (!conn->xprt_ctx) |
| goto out_error; |
| |
| /* If we use SSL_do_handshake to process a reneg initiated by |
| * the remote peer, it sometimes returns SSL_ERROR_SSL. |
| * Usually SSL_write and SSL_read are used and process implicitly |
| * the reneg handshake. |
| * Here we use SSL_peek as a workaround for reneg. |
| */ |
| if ((conn->flags & CO_FL_CONNECTED) && SSL_renegotiate_pending(conn->xprt_ctx)) { |
| char c; |
| |
| ret = SSL_peek(conn->xprt_ctx, &c, 1); |
| if (ret <= 0) { |
| /* handshake may have not been completed, let's find why */ |
| ret = SSL_get_error(conn->xprt_ctx, ret); |
| if (ret == SSL_ERROR_WANT_WRITE) { |
| /* SSL handshake needs to write, L4 connection may not be ready */ |
| __conn_sock_stop_recv(conn); |
| __conn_sock_poll_send(conn); |
| return 0; |
| } |
| else if (ret == SSL_ERROR_WANT_READ) { |
| /* handshake may have been completed but we have |
| * no more data to read. |
| */ |
| if (!SSL_renegotiate_pending(conn->xprt_ctx)) { |
| ret = 1; |
| goto reneg_ok; |
| } |
| /* SSL handshake needs to read, L4 connection is ready */ |
| if (conn->flags & CO_FL_WAIT_L4_CONN) |
| conn->flags &= ~CO_FL_WAIT_L4_CONN; |
| __conn_sock_stop_send(conn); |
| __conn_sock_poll_recv(conn); |
| return 0; |
| } |
| else if (ret == SSL_ERROR_SYSCALL) { |
| /* if errno is null, then connection was successfully established */ |
| if (!errno && conn->flags & CO_FL_WAIT_L4_CONN) |
| conn->flags &= ~CO_FL_WAIT_L4_CONN; |
| if (!conn->err_code) { |
| if (!((SSL *)conn->xprt_ctx)->packet_length) |
| if (!errno) |
| conn->err_code = CO_ER_SSL_EMPTY; |
| else |
| conn->err_code = CO_ER_SSL_ABORT; |
| else |
| conn->err_code = CO_ER_SSL_HANDSHAKE; |
| } |
| goto out_error; |
| } |
| else { |
| /* Fail on all other handshake errors */ |
| /* Note: OpenSSL may leave unread bytes in the socket's |
| * buffer, causing an RST to be emitted upon close() on |
| * TCP sockets. We first try to drain possibly pending |
| * data to avoid this as much as possible. |
| */ |
| if ((conn->flags & CO_FL_CTRL_READY) && conn->ctrl && conn->ctrl->drain) |
| conn->ctrl->drain(conn->t.sock.fd); |
| if (!conn->err_code) |
| conn->err_code = CO_ER_SSL_HANDSHAKE; |
| goto out_error; |
| } |
| } |
| /* read some data: consider handshake completed */ |
| goto reneg_ok; |
| } |
| |
| ret = SSL_do_handshake(conn->xprt_ctx); |
| if (ret != 1) { |
| /* handshake did not complete, let's find why */ |
| ret = SSL_get_error(conn->xprt_ctx, ret); |
| |
| if (ret == SSL_ERROR_WANT_WRITE) { |
| /* SSL handshake needs to write, L4 connection may not be ready */ |
| __conn_sock_stop_recv(conn); |
| __conn_sock_poll_send(conn); |
| return 0; |
| } |
| else if (ret == SSL_ERROR_WANT_READ) { |
| /* SSL handshake needs to read, L4 connection is ready */ |
| if (conn->flags & CO_FL_WAIT_L4_CONN) |
| conn->flags &= ~CO_FL_WAIT_L4_CONN; |
| __conn_sock_stop_send(conn); |
| __conn_sock_poll_recv(conn); |
| return 0; |
| } |
| else if (ret == SSL_ERROR_SYSCALL) { |
| /* if errno is null, then connection was successfully established */ |
| if (!errno && conn->flags & CO_FL_WAIT_L4_CONN) |
| conn->flags &= ~CO_FL_WAIT_L4_CONN; |
| |
| if (!((SSL *)conn->xprt_ctx)->packet_length) |
| if (!errno) |
| conn->err_code = CO_ER_SSL_EMPTY; |
| else |
| conn->err_code = CO_ER_SSL_ABORT; |
| else |
| conn->err_code = CO_ER_SSL_HANDSHAKE; |
| goto out_error; |
| } |
| else { |
| /* Fail on all other handshake errors */ |
| /* Note: OpenSSL may leave unread bytes in the socket's |
| * buffer, causing an RST to be emitted upon close() on |
| * TCP sockets. We first try to drain possibly pending |
| * data to avoid this as much as possible. |
| */ |
| if ((conn->flags & CO_FL_CTRL_READY) && conn->ctrl && conn->ctrl->drain) |
| conn->ctrl->drain(conn->t.sock.fd); |
| if (!conn->err_code) |
| conn->err_code = CO_ER_SSL_HANDSHAKE; |
| goto out_error; |
| } |
| } |
| |
| reneg_ok: |
| |
| /* Handshake succeeded */ |
| if (objt_server(conn->target)) { |
| if (!SSL_session_reused(conn->xprt_ctx)) { |
| /* check if session was reused, if not store current session on server for reuse */ |
| if (objt_server(conn->target)->ssl_ctx.reused_sess) |
| SSL_SESSION_free(objt_server(conn->target)->ssl_ctx.reused_sess); |
| |
| objt_server(conn->target)->ssl_ctx.reused_sess = SSL_get1_session(conn->xprt_ctx); |
| } |
| } |
| |
| /* The connection is now established at both layers, it's time to leave */ |
| conn->flags &= ~(flag | CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN); |
| return 1; |
| |
| out_error: |
| /* Clear openssl global errors stack */ |
| ERR_clear_error(); |
| |
| /* free resumed session if exists */ |
| if (objt_server(conn->target) && objt_server(conn->target)->ssl_ctx.reused_sess) { |
| SSL_SESSION_free(objt_server(conn->target)->ssl_ctx.reused_sess); |
| objt_server(conn->target)->ssl_ctx.reused_sess = NULL; |
| } |
| |
| /* Fail on all other handshake errors */ |
| conn->flags |= CO_FL_ERROR; |
| if (!conn->err_code) |
| conn->err_code = CO_ER_SSL_HANDSHAKE; |
| return 0; |
| } |
| |
| /* Receive up to <count> bytes from connection <conn>'s socket and store them |
| * into buffer <buf>. Only one call to recv() is performed, unless the |
| * buffer wraps, in which case a second call may be performed. The connection's |
| * flags are updated with whatever special event is detected (error, read0, |
| * empty). The caller is responsible for taking care of those events and |
| * avoiding the call if inappropriate. The function does not call the |
| * connection's polling update function, so the caller is responsible for this. |
| */ |
| static int ssl_sock_to_buf(struct connection *conn, struct buffer *buf, int count) |
| { |
| int ret, done = 0; |
| int try; |
| |
| if (!conn->xprt_ctx) |
| goto out_error; |
| |
| if (conn->flags & CO_FL_HANDSHAKE) |
| /* a handshake was requested */ |
| return 0; |
| |
| /* let's realign the buffer to optimize I/O */ |
| if (buffer_empty(buf)) |
| buf->p = buf->data; |
| |
| /* read the largest possible block. For this, we perform only one call |
| * to recv() unless the buffer wraps and we exactly fill the first hunk, |
| * in which case we accept to do it once again. A new attempt is made on |
| * EINTR too. |
| */ |
| while (count > 0) { |
| /* first check if we have some room after p+i */ |
| try = buf->data + buf->size - (buf->p + buf->i); |
| /* otherwise continue between data and p-o */ |
| if (try <= 0) { |
| try = buf->p - (buf->data + buf->o); |
| if (try <= 0) |
| break; |
| } |
| if (try > count) |
| try = count; |
| |
| ret = SSL_read(conn->xprt_ctx, bi_end(buf), try); |
| if (conn->flags & CO_FL_ERROR) { |
| /* CO_FL_ERROR may be set by ssl_sock_infocbk */ |
| goto out_error; |
| } |
| if (ret > 0) { |
| buf->i += ret; |
| done += ret; |
| if (ret < try) |
| break; |
| count -= ret; |
| } |
| else if (ret == 0) { |
| ret = SSL_get_error(conn->xprt_ctx, ret); |
| if (ret != SSL_ERROR_ZERO_RETURN) { |
| /* error on protocol or underlying transport */ |
| if ((ret != SSL_ERROR_SYSCALL) |
| || (errno && (errno != EAGAIN))) |
| conn->flags |= CO_FL_ERROR; |
| |
| /* Clear openssl global errors stack */ |
| ERR_clear_error(); |
| } |
| goto read0; |
| } |
| else { |
| ret = SSL_get_error(conn->xprt_ctx, ret); |
| if (ret == SSL_ERROR_WANT_WRITE) { |
| /* handshake is running, and it needs to enable write */ |
| conn->flags |= CO_FL_SSL_WAIT_HS; |
| __conn_sock_want_send(conn); |
| break; |
| } |
| else if (ret == SSL_ERROR_WANT_READ) { |
| if (SSL_renegotiate_pending(conn->xprt_ctx)) { |
| /* handshake is running, and it may need to re-enable read */ |
| conn->flags |= CO_FL_SSL_WAIT_HS; |
| __conn_sock_want_recv(conn); |
| break; |
| } |
| /* we need to poll for retry a read later */ |
| __conn_data_poll_recv(conn); |
| break; |
| } |
| /* otherwise it's a real error */ |
| goto out_error; |
| } |
| } |
| return done; |
| |
| read0: |
| conn_sock_read0(conn); |
| return done; |
| out_error: |
| /* Clear openssl global errors stack */ |
| ERR_clear_error(); |
| |
| conn->flags |= CO_FL_ERROR; |
| return done; |
| } |
| |
| |
| /* Send all pending bytes from buffer <buf> to connection <conn>'s socket. |
| * <flags> may contain MSG_MORE to make the system hold on without sending |
| * data too fast, but this flag is ignored at the moment. |
| * Only one call to send() is performed, unless the buffer wraps, in which case |
| * a second call may be performed. The connection's flags are updated with |
| * whatever special event is detected (error, empty). The caller is responsible |
| * for taking care of those events and avoiding the call if inappropriate. The |
| * function does not call the connection's polling update function, so the caller |
| * is responsible for this. |
| */ |
| static int ssl_sock_from_buf(struct connection *conn, struct buffer *buf, int flags) |
| { |
| int ret, try, done; |
| |
| done = 0; |
| |
| if (!conn->xprt_ctx) |
| goto out_error; |
| |
| if (conn->flags & CO_FL_HANDSHAKE) |
| /* a handshake was requested */ |
| return 0; |
| |
| /* send the largest possible block. For this we perform only one call |
| * to send() unless the buffer wraps and we exactly fill the first hunk, |
| * in which case we accept to do it once again. |
| */ |
| while (buf->o) { |
| try = bo_contig_data(buf); |
| |
| if (global.tune.ssl_max_record && try > global.tune.ssl_max_record) |
| try = global.tune.ssl_max_record; |
| |
| ret = SSL_write(conn->xprt_ctx, bo_ptr(buf), try); |
| if (conn->flags & CO_FL_ERROR) { |
| /* CO_FL_ERROR may be set by ssl_sock_infocbk */ |
| goto out_error; |
| } |
| if (ret > 0) { |
| buf->o -= ret; |
| done += ret; |
| |
| if (likely(buffer_empty(buf))) |
| /* optimize data alignment in the buffer */ |
| buf->p = buf->data; |
| |
| /* if the system buffer is full, don't insist */ |
| if (ret < try) |
| break; |
| } |
| else { |
| ret = SSL_get_error(conn->xprt_ctx, ret); |
| if (ret == SSL_ERROR_WANT_WRITE) { |
| if (SSL_renegotiate_pending(conn->xprt_ctx)) { |
| /* handshake is running, and it may need to re-enable write */ |
| conn->flags |= CO_FL_SSL_WAIT_HS; |
| __conn_sock_want_send(conn); |
| break; |
| } |
| /* we need to poll to retry a write later */ |
| __conn_data_poll_send(conn); |
| break; |
| } |
| else if (ret == SSL_ERROR_WANT_READ) { |
| /* handshake is running, and it needs to enable read */ |
| conn->flags |= CO_FL_SSL_WAIT_HS; |
| __conn_sock_want_recv(conn); |
| break; |
| } |
| goto out_error; |
| } |
| } |
| return done; |
| |
| out_error: |
| /* Clear openssl global errors stack */ |
| ERR_clear_error(); |
| |
| conn->flags |= CO_FL_ERROR; |
| return done; |
| } |
| |
| static void ssl_sock_close(struct connection *conn) { |
| |
| if (conn->xprt_ctx) { |
| SSL_free(conn->xprt_ctx); |
| conn->xprt_ctx = NULL; |
| sslconns--; |
| } |
| } |
| |
| /* This function tries to perform a clean shutdown on an SSL connection, and in |
| * any case, flags the connection as reusable if no handshake was in progress. |
| */ |
| static void ssl_sock_shutw(struct connection *conn, int clean) |
| { |
| if (conn->flags & CO_FL_HANDSHAKE) |
| return; |
| /* no handshake was in progress, try a clean ssl shutdown */ |
| if (clean && (SSL_shutdown(conn->xprt_ctx) <= 0)) { |
| /* Clear openssl global errors stack */ |
| ERR_clear_error(); |
| } |
| |
| /* force flag on ssl to keep session in cache regardless shutdown result */ |
| SSL_set_shutdown(conn->xprt_ctx, SSL_SENT_SHUTDOWN); |
| } |
| |
| /* used for logging, may be changed for a sample fetch later */ |
| const char *ssl_sock_get_cipher_name(struct connection *conn) |
| { |
| if (!conn->xprt && !conn->xprt_ctx) |
| return NULL; |
| return SSL_get_cipher_name(conn->xprt_ctx); |
| } |
| |
| /* used for logging, may be changed for a sample fetch later */ |
| const char *ssl_sock_get_proto_version(struct connection *conn) |
| { |
| if (!conn->xprt && !conn->xprt_ctx) |
| return NULL; |
| return SSL_get_version(conn->xprt_ctx); |
| } |
| |
| /* Extract a serial from a cert, and copy it to a chunk. |
| * Returns 1 if serial is found and copied, 0 if no serial found and |
| * -1 if output is not large enough. |
| */ |
| static int |
| ssl_sock_get_serial(X509 *crt, struct chunk *out) |
| { |
| ASN1_INTEGER *serial; |
| |
| serial = X509_get_serialNumber(crt); |
| if (!serial) |
| return 0; |
| |
| if (out->size < serial->length) |
| return -1; |
| |
| memcpy(out->str, serial->data, serial->length); |
| out->len = serial->length; |
| return 1; |
| } |
| |
| |
| /* Copy Date in ASN1_UTCTIME format in struct chunk out. |
| * Returns 1 if serial is found and copied, 0 if no valid time found |
| * and -1 if output is not large enough. |
| */ |
| static int |
| ssl_sock_get_time(ASN1_TIME *tm, struct chunk *out) |
| { |
| if (tm->type == V_ASN1_GENERALIZEDTIME) { |
| ASN1_GENERALIZEDTIME *gentm = (ASN1_GENERALIZEDTIME *)tm; |
| |
| if (gentm->length < 12) |
| return 0; |
| if (gentm->data[0] != 0x32 || gentm->data[1] != 0x30) |
| return 0; |
| if (out->size < gentm->length-2) |
| return -1; |
| |
| memcpy(out->str, gentm->data+2, gentm->length-2); |
| out->len = gentm->length-2; |
| return 1; |
| } |
| else if (tm->type == V_ASN1_UTCTIME) { |
| ASN1_UTCTIME *utctm = (ASN1_UTCTIME *)tm; |
| |
| if (utctm->length < 10) |
| return 0; |
| if (utctm->data[0] >= 0x35) |
| return 0; |
| if (out->size < utctm->length) |
| return -1; |
| |
| memcpy(out->str, utctm->data, utctm->length); |
| out->len = utctm->length; |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| /* Extract an entry from a X509_NAME and copy its value to an output chunk. |
| * Returns 1 if entry found, 0 if entry not found, or -1 if output not large enough. |
| */ |
| static int |
| ssl_sock_get_dn_entry(X509_NAME *a, const struct chunk *entry, int pos, struct chunk *out) |
| { |
| X509_NAME_ENTRY *ne; |
| int i, j, n; |
| int cur = 0; |
| const char *s; |
| char tmp[128]; |
| |
| out->len = 0; |
| for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { |
| if (pos < 0) |
| j = (sk_X509_NAME_ENTRY_num(a->entries)-1) - i; |
| else |
| j = i; |
| |
| ne = sk_X509_NAME_ENTRY_value(a->entries, j); |
| n = OBJ_obj2nid(ne->object); |
| if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) { |
| i2t_ASN1_OBJECT(tmp, sizeof(tmp), ne->object); |
| s = tmp; |
| } |
| |
| if (chunk_strcasecmp(entry, s) != 0) |
| continue; |
| |
| if (pos < 0) |
| cur--; |
| else |
| cur++; |
| |
| if (cur != pos) |
| continue; |
| |
| if (ne->value->length > out->size) |
| return -1; |
| |
| memcpy(out->str, ne->value->data, ne->value->length); |
| out->len = ne->value->length; |
| return 1; |
| } |
| |
| return 0; |
| |
| } |
| |
| /* Extract and format full DN from a X509_NAME and copy result into a chunk |
| * Returns 1 if dn entries exits, 0 if no dn entry found or -1 if output is not large enough. |
| */ |
| static int |
| ssl_sock_get_dn_oneline(X509_NAME *a, struct chunk *out) |
| { |
| X509_NAME_ENTRY *ne; |
| int i, n, ln; |
| int l = 0; |
| const char *s; |
| char *p; |
| char tmp[128]; |
| |
| out->len = 0; |
| p = out->str; |
| for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) { |
| ne = sk_X509_NAME_ENTRY_value(a->entries, i); |
| n = OBJ_obj2nid(ne->object); |
| if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) { |
| i2t_ASN1_OBJECT(tmp, sizeof(tmp), ne->object); |
| s = tmp; |
| } |
| ln = strlen(s); |
| |
| l += 1 + ln + 1 + ne->value->length; |
| if (l > out->size) |
| return -1; |
| out->len = l; |
| |
| *(p++)='/'; |
| memcpy(p, s, ln); |
| p += ln; |
| *(p++)='='; |
| memcpy(p, ne->value->data, ne->value->length); |
| p += ne->value->length; |
| } |
| |
| if (!out->len) |
| return 0; |
| |
| return 1; |
| } |
| |
| /***** Below are some sample fetching functions for ACL/patterns *****/ |
| |
| /* boolean, returns true if client cert was present */ |
| static int |
| smp_fetch_ssl_fc_has_crt(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| smp->flags = 0; |
| smp->type = SMP_T_BOOL; |
| smp->data.uint = SSL_SOCK_ST_FL_VERIFY_DONE & conn->xprt_st ? 1 : 0; |
| |
| return 1; |
| } |
| |
| /* bin, returns serial in a binary chunk */ |
| static int |
| smp_fetch_ssl_c_serial(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate, it increase X509 * ref count */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (ssl_sock_get_serial(crt, smp_trash) <= 0) |
| goto out; |
| |
| smp->data.str = *smp_trash; |
| smp->type = SMP_T_BIN; |
| ret = 1; |
| out: |
| if (crt) |
| X509_free(crt); |
| return ret; |
| } |
| |
| /* bin, returns the client certificate's SHA-1 fingerprint (SHA-1 hash of DER-encoded certificate) in a binary chunk */ |
| static int |
| smp_fetch_ssl_c_sha1(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| const EVP_MD *digest; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate, it increase X509 * ref count */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| digest = EVP_sha1(); |
| X509_digest(crt, digest, (unsigned char *)smp_trash->str, (unsigned int *)&smp_trash->len); |
| |
| smp->data.str = *smp_trash; |
| smp->type = SMP_T_BIN; |
| ret = 1; |
| out: |
| if (crt) |
| X509_free(crt); |
| return ret; |
| } |
| |
| /*str, returns notafter date in ASN1_UTCTIME format */ |
| static int |
| smp_fetch_ssl_c_notafter(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate, it increase X509 * ref count */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (ssl_sock_get_time(X509_get_notAfter(crt), smp_trash) <= 0) |
| goto out; |
| |
| smp->data.str = *smp_trash; |
| smp->type = SMP_T_STR; |
| ret = 1; |
| out: |
| if (crt) |
| X509_free(crt); |
| return ret; |
| } |
| |
| /* str, returns a string of a formatted full dn \C=..\O=..\OU=.. \CN=.. */ |
| static int |
| smp_fetch_ssl_c_i_dn(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| X509_NAME *name; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate, it increase X509 * ref count */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| name = X509_get_issuer_name(crt); |
| if (!name) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (args && args[0].type == ARGT_STR) { |
| int pos = 1; |
| |
| if (args[1].type == ARGT_SINT) |
| pos = args[1].data.sint; |
| else if (args[1].type == ARGT_UINT) |
| pos =(int)args[1].data.uint; |
| |
| if (ssl_sock_get_dn_entry(name, &args[0].data.str, pos, smp_trash) <= 0) |
| goto out; |
| } |
| else if (ssl_sock_get_dn_oneline(name, smp_trash) <= 0) |
| goto out; |
| |
| smp->type = SMP_T_STR; |
| smp->data.str = *smp_trash; |
| ret = 1; |
| out: |
| if (crt) |
| X509_free(crt); |
| return ret; |
| } |
| |
| /*str, returns notbefore date in ASN1_UTCTIME format */ |
| static int |
| smp_fetch_ssl_c_notbefore(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate, it increase X509 * ref count */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (ssl_sock_get_time(X509_get_notBefore(crt), smp_trash) <= 0) |
| goto out; |
| |
| smp->data.str = *smp_trash; |
| smp->type = SMP_T_STR; |
| ret = 1; |
| out: |
| if (crt) |
| X509_free(crt); |
| return ret; |
| } |
| |
| /* str, returns a string of a formatted full dn \C=..\O=..\OU=.. \CN=.. */ |
| static int |
| smp_fetch_ssl_c_s_dn(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| X509_NAME *name; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate, it increase X509 * ref count */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| name = X509_get_subject_name(crt); |
| if (!name) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (args && args[0].type == ARGT_STR) { |
| int pos = 1; |
| |
| if (args[1].type == ARGT_SINT) |
| pos = args[1].data.sint; |
| else if (args[1].type == ARGT_UINT) |
| pos =(int)args[1].data.uint; |
| |
| if (ssl_sock_get_dn_entry(name, &args[0].data.str, pos, smp_trash) <= 0) |
| goto out; |
| } |
| else if (ssl_sock_get_dn_oneline(name, smp_trash) <= 0) |
| goto out; |
| |
| smp->type = SMP_T_STR; |
| smp->data.str = *smp_trash; |
| ret = 1; |
| out: |
| if (crt) |
| X509_free(crt); |
| return ret; |
| } |
| |
| /* integer, returns true if current session use a client certificate */ |
| static int |
| smp_fetch_ssl_c_used(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate returns a ptr on allocated X509 struct */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (crt) { |
| X509_free(crt); |
| } |
| |
| smp->type = SMP_T_BOOL; |
| smp->data.uint = (crt != NULL); |
| return 1; |
| } |
| |
| /* integer, returns the client certificate version */ |
| static int |
| smp_fetch_ssl_c_version(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate returns a ptr on allocated X509 struct */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| return 0; |
| |
| smp->data.uint = (unsigned int)(1 + X509_get_version(crt)); |
| X509_free(crt); |
| smp->type = SMP_T_UINT; |
| |
| return 1; |
| } |
| |
| /* str, returns the client certificate sig alg */ |
| static int |
| smp_fetch_ssl_c_sig_alg(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt; |
| int nid; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate increase X509 * ref count */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| return 0; |
| |
| nid = OBJ_obj2nid((ASN1_OBJECT *)(crt->cert_info->signature->algorithm)); |
| |
| smp->data.str.str = (char *)OBJ_nid2sn(nid); |
| if (!smp->data.str.str) { |
| X509_free(crt); |
| return 0; |
| } |
| |
| smp->type = SMP_T_CSTR; |
| smp->data.str.len = strlen(smp->data.str.str); |
| X509_free(crt); |
| |
| return 1; |
| } |
| |
| /* str, returns the client certificate key alg */ |
| static int |
| smp_fetch_ssl_c_key_alg(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt; |
| int nid; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_peer_certificate increase X509 * ref count */ |
| crt = SSL_get_peer_certificate(conn->xprt_ctx); |
| if (!crt) |
| return 0; |
| |
| nid = OBJ_obj2nid((ASN1_OBJECT *)(crt->cert_info->key->algor->algorithm)); |
| |
| smp->data.str.str = (char *)OBJ_nid2sn(nid); |
| if (!smp->data.str.str) { |
| X509_free(crt); |
| return 0; |
| } |
| |
| smp->type = SMP_T_CSTR; |
| smp->data.str.len = strlen(smp->data.str.str); |
| X509_free(crt); |
| |
| return 1; |
| } |
| |
| /* boolean, returns true if front conn. transport layer is SSL */ |
| static int |
| smp_fetch_ssl_fc(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn = objt_conn(l4->si[0].end); |
| |
| smp->type = SMP_T_BOOL; |
| smp->data.uint = (conn && conn->xprt == &ssl_sock); |
| return 1; |
| } |
| |
| /* boolean, returns true if client present a SNI */ |
| static int |
| smp_fetch_ssl_fc_has_sni(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| struct connection *conn = objt_conn(l4->si[0].end); |
| |
| smp->type = SMP_T_BOOL; |
| smp->data.uint = (conn && conn->xprt == &ssl_sock) && |
| conn->xprt_ctx && |
| SSL_get_servername(conn->xprt_ctx, TLSEXT_NAMETYPE_host_name) != NULL; |
| return 1; |
| #else |
| return 0; |
| #endif |
| } |
| |
| /* bin, returns serial in a binary chunk */ |
| static int |
| smp_fetch_ssl_f_serial(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| crt = SSL_get_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (ssl_sock_get_serial(crt, smp_trash) <= 0) |
| goto out; |
| |
| smp->data.str = *smp_trash; |
| smp->type = SMP_T_BIN; |
| ret = 1; |
| out: |
| return ret; |
| } |
| /*str, returns notafter date in ASN1_UTCTIME format */ |
| static int |
| smp_fetch_ssl_f_notafter(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| crt = SSL_get_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (ssl_sock_get_time(X509_get_notAfter(crt), smp_trash) <= 0) |
| goto out; |
| |
| smp->data.str = *smp_trash; |
| smp->type = SMP_T_STR; |
| ret = 1; |
| out: |
| return ret; |
| } |
| |
| /*str, returns notbefore date in ASN1_UTCTIME format */ |
| static int |
| smp_fetch_ssl_f_notbefore(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| crt = SSL_get_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (ssl_sock_get_time(X509_get_notBefore(crt), smp_trash) <= 0) |
| goto out; |
| |
| smp->data.str = *smp_trash; |
| smp->type = SMP_T_STR; |
| ret = 1; |
| out: |
| return ret; |
| } |
| |
| /* integer, returns the frontend certificate version */ |
| static int |
| smp_fetch_ssl_f_version(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| /* SSL_get_certificate returns a ptr on an SSL * internal sub struct */ |
| crt = SSL_get_certificate(conn->xprt_ctx); |
| if (!crt) |
| return 0; |
| |
| smp->data.uint = (unsigned int)(1 + X509_get_version(crt)); |
| smp->type = SMP_T_UINT; |
| |
| return 1; |
| } |
| |
| /* str, returns the client certificate sig alg */ |
| static int |
| smp_fetch_ssl_f_sig_alg(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt; |
| int nid; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| crt = SSL_get_certificate(conn->xprt_ctx); |
| if (!crt) |
| return 0; |
| |
| nid = OBJ_obj2nid((ASN1_OBJECT *)(crt->cert_info->signature->algorithm)); |
| |
| smp->data.str.str = (char *)OBJ_nid2sn(nid); |
| if (!smp->data.str.str) |
| return 0; |
| |
| smp->type = SMP_T_CSTR; |
| smp->data.str.len = strlen(smp->data.str.str); |
| |
| return 1; |
| } |
| |
| /* str, returns the client certificate key alg */ |
| static int |
| smp_fetch_ssl_f_key_alg(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt; |
| int nid; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| crt = SSL_get_certificate(conn->xprt_ctx); |
| if (!crt) |
| return 0; |
| |
| nid = OBJ_obj2nid((ASN1_OBJECT *)(crt->cert_info->key->algor->algorithm)); |
| |
| smp->data.str.str = (char *)OBJ_nid2sn(nid); |
| if (!smp->data.str.str) |
| return 0; |
| |
| smp->type = SMP_T_CSTR; |
| smp->data.str.len = strlen(smp->data.str.str); |
| |
| return 1; |
| } |
| |
| /* str, returns a string of a formatted full dn \C=..\O=..\OU=.. \CN=.. */ |
| static int |
| smp_fetch_ssl_f_i_dn(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| X509_NAME *name; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| crt = SSL_get_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| name = X509_get_issuer_name(crt); |
| if (!name) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (args && args[0].type == ARGT_STR) { |
| int pos = 1; |
| |
| if (args[1].type == ARGT_SINT) |
| pos = args[1].data.sint; |
| else if (args[1].type == ARGT_UINT) |
| pos =(int)args[1].data.uint; |
| |
| if (ssl_sock_get_dn_entry(name, &args[0].data.str, pos, smp_trash) <= 0) |
| goto out; |
| } |
| else if (ssl_sock_get_dn_oneline(name, smp_trash) <= 0) |
| goto out; |
| |
| smp->type = SMP_T_STR; |
| smp->data.str = *smp_trash; |
| ret = 1; |
| out: |
| return ret; |
| } |
| |
| /* str, returns a string of a formatted full dn \C=..\O=..\OU=.. \CN=.. */ |
| static int |
| smp_fetch_ssl_f_s_dn(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| X509 *crt = NULL; |
| X509_NAME *name; |
| int ret = 0; |
| struct chunk *smp_trash; |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags |= SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| crt = SSL_get_certificate(conn->xprt_ctx); |
| if (!crt) |
| goto out; |
| |
| name = X509_get_subject_name(crt); |
| if (!name) |
| goto out; |
| |
| smp_trash = get_trash_chunk(); |
| if (args && args[0].type == ARGT_STR) { |
| int pos = 1; |
| |
| if (args[1].type == ARGT_SINT) |
| pos = args[1].data.sint; |
| else if (args[1].type == ARGT_UINT) |
| pos =(int)args[1].data.uint; |
| |
| if (ssl_sock_get_dn_entry(name, &args[0].data.str, pos, smp_trash) <= 0) |
| goto out; |
| } |
| else if (ssl_sock_get_dn_oneline(name, smp_trash) <= 0) |
| goto out; |
| |
| smp->type = SMP_T_STR; |
| smp->data.str = *smp_trash; |
| ret = 1; |
| out: |
| return ret; |
| } |
| |
| static int |
| smp_fetch_ssl_fc_cipher(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| smp->flags = 0; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| smp->data.str.str = (char *)SSL_get_cipher_name(conn->xprt_ctx); |
| if (!smp->data.str.str) |
| return 0; |
| |
| smp->type = SMP_T_CSTR; |
| smp->data.str.len = strlen(smp->data.str.str); |
| |
| return 1; |
| } |
| |
| static int |
| smp_fetch_ssl_fc_alg_keysize(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| smp->flags = 0; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!SSL_get_cipher_bits(conn->xprt_ctx, (int *)&smp->data.uint)) |
| return 0; |
| |
| smp->type = SMP_T_UINT; |
| |
| return 1; |
| } |
| |
| static int |
| smp_fetch_ssl_fc_use_keysize(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| smp->flags = 0; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| smp->data.uint = (unsigned int)SSL_get_cipher_bits(conn->xprt_ctx, NULL); |
| if (!smp->data.uint) |
| return 0; |
| |
| smp->type = SMP_T_UINT; |
| |
| return 1; |
| } |
| |
| #ifdef OPENSSL_NPN_NEGOTIATED |
| static int |
| smp_fetch_ssl_fc_npn(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| smp->flags = 0; |
| smp->type = SMP_T_CSTR; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| smp->data.str.str = NULL; |
| SSL_get0_next_proto_negotiated(conn->xprt_ctx, |
| (const unsigned char **)&smp->data.str.str, (unsigned *)&smp->data.str.len); |
| |
| if (!smp->data.str.str) |
| return 0; |
| |
| return 1; |
| } |
| #endif |
| |
| #ifdef OPENSSL_ALPN_NEGOTIATED |
| static int |
| smp_fetch_ssl_fc_alpn(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| smp->flags = 0; |
| smp->type = SMP_T_CSTR; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| smp->data.str.str = NULL; |
| SSL_get0_alpn_negotiated(conn->xprt_ctx, |
| (const unsigned char **)&smp->data.str.str, (unsigned *)&smp->data.str.len); |
| |
| if (!smp->data.str.str) |
| return 0; |
| |
| return 1; |
| } |
| #endif |
| |
| static int |
| smp_fetch_ssl_fc_protocol(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| smp->flags = 0; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| smp->data.str.str = (char *)SSL_get_version(conn->xprt_ctx); |
| if (!smp->data.str.str) |
| return 0; |
| |
| smp->type = SMP_T_CSTR; |
| smp->data.str.len = strlen(smp->data.str.str); |
| |
| return 1; |
| } |
| |
| static int |
| smp_fetch_ssl_fc_session_id(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| #if OPENSSL_VERSION_NUMBER > 0x0090800fL |
| SSL_SESSION *sess; |
| struct connection *conn; |
| |
| smp->flags = 0; |
| smp->type = SMP_T_CBIN; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| sess = SSL_get_session(conn->xprt_ctx); |
| if (!sess) |
| return 0; |
| |
| smp->data.str.str = (char *)SSL_SESSION_get_id(sess, (unsigned int *)&smp->data.str.len); |
| if (!smp->data.str.str || !&smp->data.str.len) |
| return 0; |
| |
| return 1; |
| #else |
| return 0; |
| #endif |
| } |
| |
| static int |
| smp_fetch_ssl_fc_sni(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME |
| struct connection *conn; |
| |
| smp->flags = 0; |
| smp->type = SMP_T_CSTR; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || !conn->xprt_ctx || conn->xprt != &ssl_sock) |
| return 0; |
| |
| smp->data.str.str = (char *)SSL_get_servername(conn->xprt_ctx, TLSEXT_NAMETYPE_host_name); |
| if (!smp->data.str.str) |
| return 0; |
| |
| smp->data.str.len = strlen(smp->data.str.str); |
| return 1; |
| #else |
| return 0; |
| #endif |
| } |
| |
| /* integer, returns the first verify error in CA chain of client certificate chain. */ |
| static int |
| smp_fetch_ssl_c_ca_err(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags = SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| smp->type = SMP_T_UINT; |
| smp->data.uint = (unsigned int)SSL_SOCK_ST_TO_CA_ERROR(conn->xprt_st); |
| smp->flags = 0; |
| |
| return 1; |
| } |
| |
| /* integer, returns the depth of the first verify error in CA chain of client certificate chain. */ |
| static int |
| smp_fetch_ssl_c_ca_err_depth(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags = SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| smp->type = SMP_T_UINT; |
| smp->data.uint = (unsigned int)SSL_SOCK_ST_TO_CAEDEPTH(conn->xprt_st); |
| smp->flags = 0; |
| |
| return 1; |
| } |
| |
| /* integer, returns the first verify error on client certificate */ |
| static int |
| smp_fetch_ssl_c_err(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags = SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| smp->type = SMP_T_UINT; |
| smp->data.uint = (unsigned int)SSL_SOCK_ST_TO_CRTERROR(conn->xprt_st); |
| smp->flags = 0; |
| |
| return 1; |
| } |
| |
| /* integer, returns the verify result on client cert */ |
| static int |
| smp_fetch_ssl_c_verify(struct proxy *px, struct session *l4, void *l7, unsigned int opt, |
| const struct arg *args, struct sample *smp, const char *kw) |
| { |
| struct connection *conn; |
| |
| if (!l4) |
| return 0; |
| |
| conn = objt_conn(l4->si[0].end); |
| if (!conn || conn->xprt != &ssl_sock) |
| return 0; |
| |
| if (!(conn->flags & CO_FL_CONNECTED)) { |
| smp->flags = SMP_F_MAY_CHANGE; |
| return 0; |
| } |
| |
| if (!conn->xprt_ctx) |
| return 0; |
| |
| smp->type = SMP_T_UINT; |
| smp->data.uint = (unsigned int)SSL_get_verify_result(conn->xprt_ctx); |
| smp->flags = 0; |
| |
| return 1; |
| } |
| |
| /* parse the "ca-file" bind keyword */ |
| static int bind_parse_ca_file(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| if (!*args[cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing CAfile path", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if ((*args[cur_arg + 1] != '/') && global.ca_base) |
| memprintf(&conf->ca_file, "%s/%s", global.ca_base, args[cur_arg + 1]); |
| else |
| memprintf(&conf->ca_file, "%s", args[cur_arg + 1]); |
| |
| return 0; |
| } |
| |
| /* parse the "ciphers" bind keyword */ |
| static int bind_parse_ciphers(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| if (!*args[cur_arg + 1]) { |
| memprintf(err, "'%s' : missing cipher suite", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| free(conf->ciphers); |
| conf->ciphers = strdup(args[cur_arg + 1]); |
| return 0; |
| } |
| |
| /* parse the "crt" bind keyword */ |
| static int bind_parse_crt(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| char path[MAXPATHLEN]; |
| if (!*args[cur_arg + 1]) { |
| memprintf(err, "'%s' : missing certificate location", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if ((*args[cur_arg + 1] != '/' ) && global.crt_base) { |
| if ((strlen(global.crt_base) + 1 + strlen(args[cur_arg + 1]) + 1) > MAXPATHLEN) { |
| memprintf(err, "'%s' : path too long", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| sprintf(path, "%s/%s", global.crt_base, args[cur_arg + 1]); |
| if (ssl_sock_load_cert(path, conf, px, err) > 0) |
| return ERR_ALERT | ERR_FATAL; |
| |
| return 0; |
| } |
| |
| if (ssl_sock_load_cert(args[cur_arg + 1], conf, px, err) > 0) |
| return ERR_ALERT | ERR_FATAL; |
| |
| return 0; |
| } |
| |
| /* parse the "crt-list" bind keyword */ |
| static int bind_parse_crt_list(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| if (!*args[cur_arg + 1]) { |
| memprintf(err, "'%s' : missing certificate location", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if (ssl_sock_load_cert_list_file(args[cur_arg + 1], conf, px, err) > 0) { |
| memprintf(err, "'%s' : %s", args[cur_arg], *err); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| return 0; |
| } |
| |
| /* parse the "crl-file" bind keyword */ |
| static int bind_parse_crl_file(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| #ifndef X509_V_FLAG_CRL_CHECK |
| if (err) |
| memprintf(err, "'%s' : library does not support CRL verify", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #else |
| if (!*args[cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing CRLfile path", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if ((*args[cur_arg + 1] != '/') && global.ca_base) |
| memprintf(&conf->crl_file, "%s/%s", global.ca_base, args[cur_arg + 1]); |
| else |
| memprintf(&conf->crl_file, "%s", args[cur_arg + 1]); |
| |
| return 0; |
| #endif |
| } |
| |
| /* parse the "ecdhe" bind keyword keywords */ |
| static int bind_parse_ecdhe(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| #if OPENSSL_VERSION_NUMBER < 0x0090800fL |
| if (err) |
| memprintf(err, "'%s' : library does not support elliptic curve Diffie-Hellman (too old)", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #elif defined(OPENSSL_NO_ECDH) |
| if (err) |
| memprintf(err, "'%s' : library does not support elliptic curve Diffie-Hellman (disabled via OPENSSL_NO_ECDH)", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #else |
| if (!*args[cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing named curve", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| conf->ecdhe = strdup(args[cur_arg + 1]); |
| |
| return 0; |
| #endif |
| } |
| |
| /* parse the "crt_ignerr" and "ca_ignerr" bind keywords */ |
| static int bind_parse_ignore_err(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| int code; |
| char *p = args[cur_arg + 1]; |
| unsigned long long *ignerr = &conf->crt_ignerr; |
| |
| if (!*p) { |
| if (err) |
| memprintf(err, "'%s' : missing error IDs list", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if (strcmp(args[cur_arg], "ca-ignore-err") == 0) |
| ignerr = &conf->ca_ignerr; |
| |
| if (strcmp(p, "all") == 0) { |
| *ignerr = ~0ULL; |
| return 0; |
| } |
| |
| while (p) { |
| code = atoi(p); |
| if ((code <= 0) || (code > 63)) { |
| if (err) |
| memprintf(err, "'%s' : ID '%d' out of range (1..63) in error IDs list '%s'", |
| args[cur_arg], code, args[cur_arg + 1]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| *ignerr |= 1ULL << code; |
| p = strchr(p, ','); |
| if (p) |
| p++; |
| } |
| |
| return 0; |
| } |
| |
| /* parse the "force-sslv3" bind keyword */ |
| static int bind_parse_force_sslv3(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| conf->ssl_options |= BC_SSL_O_USE_SSLV3; |
| return 0; |
| } |
| |
| /* parse the "force-tlsv10" bind keyword */ |
| static int bind_parse_force_tlsv10(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| conf->ssl_options |= BC_SSL_O_USE_TLSV10; |
| return 0; |
| } |
| |
| /* parse the "force-tlsv11" bind keyword */ |
| static int bind_parse_force_tlsv11(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| #if SSL_OP_NO_TLSv1_1 |
| conf->ssl_options |= BC_SSL_O_USE_TLSV11; |
| return 0; |
| #else |
| if (err) |
| memprintf(err, "'%s' : library does not support protocol TLSv1.1", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #endif |
| } |
| |
| /* parse the "force-tlsv12" bind keyword */ |
| static int bind_parse_force_tlsv12(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| #if SSL_OP_NO_TLSv1_2 |
| conf->ssl_options |= BC_SSL_O_USE_TLSV12; |
| return 0; |
| #else |
| if (err) |
| memprintf(err, "'%s' : library does not support protocol TLSv1.2", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #endif |
| } |
| |
| |
| /* parse the "no-tls-tickets" bind keyword */ |
| static int bind_parse_no_tls_tickets(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| conf->ssl_options |= BC_SSL_O_NO_TLS_TICKETS; |
| return 0; |
| } |
| |
| |
| /* parse the "no-sslv3" bind keyword */ |
| static int bind_parse_no_sslv3(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| conf->ssl_options |= BC_SSL_O_NO_SSLV3; |
| return 0; |
| } |
| |
| /* parse the "no-tlsv10" bind keyword */ |
| static int bind_parse_no_tlsv10(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| conf->ssl_options |= BC_SSL_O_NO_TLSV10; |
| return 0; |
| } |
| |
| /* parse the "no-tlsv11" bind keyword */ |
| static int bind_parse_no_tlsv11(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| conf->ssl_options |= BC_SSL_O_NO_TLSV11; |
| return 0; |
| } |
| |
| /* parse the "no-tlsv12" bind keyword */ |
| static int bind_parse_no_tlsv12(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| conf->ssl_options |= BC_SSL_O_NO_TLSV12; |
| return 0; |
| } |
| |
| /* parse the "npn" bind keyword */ |
| static int bind_parse_npn(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| #ifdef OPENSSL_NPN_NEGOTIATED |
| char *p1, *p2; |
| |
| if (!*args[cur_arg + 1]) { |
| memprintf(err, "'%s' : missing the comma-delimited NPN protocol suite", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| free(conf->npn_str); |
| |
| /* the NPN string is built as a suite of (<len> <name>)* */ |
| conf->npn_len = strlen(args[cur_arg + 1]) + 1; |
| conf->npn_str = calloc(1, conf->npn_len); |
| memcpy(conf->npn_str + 1, args[cur_arg + 1], conf->npn_len); |
| |
| /* replace commas with the name length */ |
| p1 = conf->npn_str; |
| p2 = p1 + 1; |
| while (1) { |
| p2 = memchr(p1 + 1, ',', conf->npn_str + conf->npn_len - (p1 + 1)); |
| if (!p2) |
| p2 = p1 + 1 + strlen(p1 + 1); |
| |
| if (p2 - (p1 + 1) > 255) { |
| *p2 = '\0'; |
| memprintf(err, "'%s' : NPN protocol name too long : '%s'", args[cur_arg], p1 + 1); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| *p1 = p2 - (p1 + 1); |
| p1 = p2; |
| |
| if (!*p2) |
| break; |
| |
| *(p2++) = '\0'; |
| } |
| return 0; |
| #else |
| if (err) |
| memprintf(err, "'%s' : library does not support TLS NPN extension", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #endif |
| } |
| |
| /* parse the "alpn" bind keyword */ |
| static int bind_parse_alpn(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| #ifdef OPENSSL_ALPN_NEGOTIATED |
| char *p1, *p2; |
| |
| if (!*args[cur_arg + 1]) { |
| memprintf(err, "'%s' : missing the comma-delimited ALPN protocol suite", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| free(conf->alpn_str); |
| |
| /* the ALPN string is built as a suite of (<len> <name>)* */ |
| conf->alpn_len = strlen(args[cur_arg + 1]) + 1; |
| conf->alpn_str = calloc(1, conf->alpn_len); |
| memcpy(conf->alpn_str + 1, args[cur_arg + 1], conf->alpn_len); |
| |
| /* replace commas with the name length */ |
| p1 = conf->alpn_str; |
| p2 = p1 + 1; |
| while (1) { |
| p2 = memchr(p1 + 1, ',', conf->alpn_str + conf->alpn_len - (p1 + 1)); |
| if (!p2) |
| p2 = p1 + 1 + strlen(p1 + 1); |
| |
| if (p2 - (p1 + 1) > 255) { |
| *p2 = '\0'; |
| memprintf(err, "'%s' : ALPN protocol name too long : '%s'", args[cur_arg], p1 + 1); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| *p1 = p2 - (p1 + 1); |
| p1 = p2; |
| |
| if (!*p2) |
| break; |
| |
| *(p2++) = '\0'; |
| } |
| return 0; |
| #else |
| if (err) |
| memprintf(err, "'%s' : library does not support TLS ALPN extension", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #endif |
| } |
| |
| /* parse the "ssl" bind keyword */ |
| static int bind_parse_ssl(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| struct listener *l; |
| |
| conf->is_ssl = 1; |
| |
| if (global.listen_default_ciphers && !conf->ciphers) |
| conf->ciphers = strdup(global.listen_default_ciphers); |
| |
| list_for_each_entry(l, &conf->listeners, by_bind) |
| l->xprt = &ssl_sock; |
| |
| return 0; |
| } |
| |
| /* parse the "strict-sni" bind keyword */ |
| static int bind_parse_strict_sni(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| conf->strict_sni = 1; |
| return 0; |
| } |
| |
| /* parse the "verify" bind keyword */ |
| static int bind_parse_verify(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| if (!*args[cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing verify method", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if (strcmp(args[cur_arg + 1], "none") == 0) |
| conf->verify = SSL_VERIFY_NONE; |
| else if (strcmp(args[cur_arg + 1], "optional") == 0) |
| conf->verify = SSL_VERIFY_PEER; |
| else if (strcmp(args[cur_arg + 1], "required") == 0) |
| conf->verify = SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT; |
| else { |
| if (err) |
| memprintf(err, "'%s' : unknown verify method '%s', only 'none', 'optional', and 'required' are supported\n", |
| args[cur_arg], args[cur_arg + 1]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| return 0; |
| } |
| |
| /************** "server" keywords ****************/ |
| |
| /* parse the "ca-file" server keyword */ |
| static int srv_parse_ca_file(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| if (!*args[*cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing CAfile path", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if ((*args[*cur_arg + 1] != '/') && global.ca_base) |
| memprintf(&newsrv->ssl_ctx.ca_file, "%s/%s", global.ca_base, args[*cur_arg + 1]); |
| else |
| memprintf(&newsrv->ssl_ctx.ca_file, "%s", args[*cur_arg + 1]); |
| |
| return 0; |
| } |
| |
| /* parse the "check-ssl" server keyword */ |
| static int srv_parse_check_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->check.use_ssl = 1; |
| if (global.connect_default_ciphers && !newsrv->ssl_ctx.ciphers) |
| newsrv->ssl_ctx.ciphers = strdup(global.connect_default_ciphers); |
| return 0; |
| } |
| |
| /* parse the "ciphers" server keyword */ |
| static int srv_parse_ciphers(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| if (!*args[*cur_arg + 1]) { |
| memprintf(err, "'%s' : missing cipher suite", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| free(newsrv->ssl_ctx.ciphers); |
| newsrv->ssl_ctx.ciphers = strdup(args[*cur_arg + 1]); |
| return 0; |
| } |
| |
| /* parse the "crl-file" server keyword */ |
| static int srv_parse_crl_file(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| #ifndef X509_V_FLAG_CRL_CHECK |
| if (err) |
| memprintf(err, "'%s' : library does not support CRL verify", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #else |
| if (!*args[*cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing CRLfile path", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if ((*args[*cur_arg + 1] != '/') && global.ca_base) |
| memprintf(&newsrv->ssl_ctx.crl_file, "%s/%s", global.ca_base, args[*cur_arg + 1]); |
| else |
| memprintf(&newsrv->ssl_ctx.crl_file, "%s", args[*cur_arg + 1]); |
| |
| return 0; |
| #endif |
| } |
| |
| /* parse the "crt" server keyword */ |
| static int srv_parse_crt(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| if (!*args[*cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing certificate file path", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if ((*args[*cur_arg + 1] != '/') && global.crt_base) |
| memprintf(&newsrv->ssl_ctx.client_crt, "%s/%s", global.ca_base, args[*cur_arg + 1]); |
| else |
| memprintf(&newsrv->ssl_ctx.client_crt, "%s", args[*cur_arg + 1]); |
| |
| return 0; |
| } |
| |
| /* parse the "force-sslv3" server keyword */ |
| static int srv_parse_force_sslv3(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->ssl_ctx.options |= SRV_SSL_O_USE_SSLV3; |
| return 0; |
| } |
| |
| /* parse the "force-tlsv10" server keyword */ |
| static int srv_parse_force_tlsv10(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->ssl_ctx.options |= SRV_SSL_O_USE_TLSV10; |
| return 0; |
| } |
| |
| /* parse the "force-tlsv11" server keyword */ |
| static int srv_parse_force_tlsv11(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| #if SSL_OP_NO_TLSv1_1 |
| newsrv->ssl_ctx.options |= SRV_SSL_O_USE_TLSV11; |
| return 0; |
| #else |
| if (err) |
| memprintf(err, "'%s' : library does not support protocol TLSv1.1", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #endif |
| } |
| |
| /* parse the "force-tlsv12" server keyword */ |
| static int srv_parse_force_tlsv12(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| #if SSL_OP_NO_TLSv1_2 |
| newsrv->ssl_ctx.options |= SRV_SSL_O_USE_TLSV12; |
| return 0; |
| #else |
| if (err) |
| memprintf(err, "'%s' : library does not support protocol TLSv1.2", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| #endif |
| } |
| |
| /* parse the "no-sslv3" server keyword */ |
| static int srv_parse_no_sslv3(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->ssl_ctx.options |= SRV_SSL_O_NO_SSLV3; |
| return 0; |
| } |
| |
| /* parse the "no-tlsv10" server keyword */ |
| static int srv_parse_no_tlsv10(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLSV10; |
| return 0; |
| } |
| |
| /* parse the "no-tlsv11" server keyword */ |
| static int srv_parse_no_tlsv11(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLSV11; |
| return 0; |
| } |
| |
| /* parse the "no-tlsv12" server keyword */ |
| static int srv_parse_no_tlsv12(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLSV12; |
| return 0; |
| } |
| |
| /* parse the "no-tls-tickets" server keyword */ |
| static int srv_parse_no_tls_tickets(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->ssl_ctx.options |= SRV_SSL_O_NO_TLS_TICKETS; |
| return 0; |
| } |
| |
| /* parse the "ssl" server keyword */ |
| static int srv_parse_ssl(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| newsrv->use_ssl = 1; |
| if (global.connect_default_ciphers && !newsrv->ssl_ctx.ciphers) |
| newsrv->ssl_ctx.ciphers = strdup(global.connect_default_ciphers); |
| return 0; |
| } |
| |
| /* parse the "verify" server keyword */ |
| static int srv_parse_verify(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| if (!*args[*cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing verify method", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if (strcmp(args[*cur_arg + 1], "none") == 0) |
| newsrv->ssl_ctx.verify = SSL_VERIFY_NONE; |
| else if (strcmp(args[*cur_arg + 1], "required") == 0) |
| newsrv->ssl_ctx.verify = SSL_VERIFY_PEER; |
| else { |
| if (err) |
| memprintf(err, "'%s' : unknown verify method '%s', only 'none' and 'required' are supported\n", |
| args[*cur_arg], args[*cur_arg + 1]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| return 0; |
| } |
| |
| /* parse the "verifyhost" server keyword */ |
| static int srv_parse_verifyhost(char **args, int *cur_arg, struct proxy *px, struct server *newsrv, char **err) |
| { |
| if (!*args[*cur_arg + 1]) { |
| if (err) |
| memprintf(err, "'%s' : missing hostname to verify against", args[*cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| newsrv->ssl_ctx.verify_host = strdup(args[*cur_arg + 1]); |
| |
| return 0; |
| } |
| |
| /* Note: must not be declared <const> as its list will be overwritten. |
| * Please take care of keeping this list alphabetically sorted. |
| */ |
| static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, { |
| { "ssl_c_ca_err", smp_fetch_ssl_c_ca_err, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI }, |
| { "ssl_c_ca_err_depth", smp_fetch_ssl_c_ca_err_depth, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI }, |
| { "ssl_c_err", smp_fetch_ssl_c_err, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI }, |
| { "ssl_c_i_dn", smp_fetch_ssl_c_i_dn, ARG2(0,STR,SINT), NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_c_key_alg", smp_fetch_ssl_c_key_alg, 0, NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_c_notafter", smp_fetch_ssl_c_notafter, 0, NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_c_notbefore", smp_fetch_ssl_c_notbefore, 0, NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_c_sig_alg", smp_fetch_ssl_c_sig_alg, 0, NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_c_s_dn", smp_fetch_ssl_c_s_dn, ARG2(0,STR,SINT), NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_c_serial", smp_fetch_ssl_c_serial, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI }, |
| { "ssl_c_sha1", smp_fetch_ssl_c_sha1, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI }, |
| { "ssl_c_used", smp_fetch_ssl_c_used, 0, NULL, SMP_T_BOOL, SMP_USE_L5CLI }, |
| { "ssl_c_verify", smp_fetch_ssl_c_verify, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI }, |
| { "ssl_c_version", smp_fetch_ssl_c_version, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI }, |
| { "ssl_f_i_dn", smp_fetch_ssl_f_i_dn, ARG2(0,STR,SINT), NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_f_key_alg", smp_fetch_ssl_f_key_alg, 0, NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_f_notafter", smp_fetch_ssl_f_notafter, 0, NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_f_notbefore", smp_fetch_ssl_f_notbefore, 0, NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_f_sig_alg", smp_fetch_ssl_f_sig_alg, 0, NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_f_s_dn", smp_fetch_ssl_f_s_dn, ARG2(0,STR,SINT), NULL, SMP_T_STR, SMP_USE_L5CLI }, |
| { "ssl_f_serial", smp_fetch_ssl_f_serial, 0, NULL, SMP_T_BIN, SMP_USE_L5CLI }, |
| { "ssl_f_version", smp_fetch_ssl_f_version, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI }, |
| { "ssl_fc", smp_fetch_ssl_fc, 0, NULL, SMP_T_BOOL, SMP_USE_L5CLI }, |
| { "ssl_fc_alg_keysize", smp_fetch_ssl_fc_alg_keysize, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI }, |
| { "ssl_fc_cipher", smp_fetch_ssl_fc_cipher, 0, NULL, SMP_T_CSTR, SMP_USE_L5CLI }, |
| { "ssl_fc_has_crt", smp_fetch_ssl_fc_has_crt, 0, NULL, SMP_T_BOOL, SMP_USE_L5CLI }, |
| { "ssl_fc_has_sni", smp_fetch_ssl_fc_has_sni, 0, NULL, SMP_T_BOOL, SMP_USE_L5CLI }, |
| #ifdef OPENSSL_NPN_NEGOTIATED |
| { "ssl_fc_npn", smp_fetch_ssl_fc_npn, 0, NULL, SMP_T_CSTR, SMP_USE_L5CLI }, |
| #endif |
| #ifdef OPENSSL_ALPN_NEGOTIATED |
| { "ssl_fc_alpn", smp_fetch_ssl_fc_alpn, 0, NULL, SMP_T_CSTR, SMP_USE_L5CLI }, |
| #endif |
| { "ssl_fc_protocol", smp_fetch_ssl_fc_protocol, 0, NULL, SMP_T_CSTR, SMP_USE_L5CLI }, |
| { "ssl_fc_use_keysize", smp_fetch_ssl_fc_use_keysize, 0, NULL, SMP_T_UINT, SMP_USE_L5CLI }, |
| { "ssl_fc_session_id", smp_fetch_ssl_fc_session_id, 0, NULL, SMP_T_CBIN, SMP_USE_L5CLI }, |
| { "ssl_fc_sni", smp_fetch_ssl_fc_sni, 0, NULL, SMP_T_CSTR, SMP_USE_L5CLI }, |
| { NULL, NULL, 0, 0, 0 }, |
| }}; |
| |
| /* Note: must not be declared <const> as its list will be overwritten. |
| * Please take care of keeping this list alphabetically sorted. |
| */ |
| static struct acl_kw_list acl_kws = {ILH, { |
| { "ssl_c_i_dn", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_c_key_alg", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_c_notafter", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_c_notbefore", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_c_sig_alg", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_c_s_dn", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_c_serial", NULL, pat_parse_bin, pat_match_bin }, |
| { "ssl_f_i_dn", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_f_key_alg", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_f_notafter", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_f_notbefore", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_f_sig_alg", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_f_s_dn", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_f_serial", NULL, pat_parse_bin, pat_match_bin }, |
| { "ssl_fc_cipher", NULL, pat_parse_str, pat_match_str }, |
| #ifdef OPENSSL_NPN_NEGOTIATED |
| { "ssl_fc_npn", NULL, pat_parse_str, pat_match_str }, |
| #endif |
| #ifdef OPENSSL_ALPN_NEGOTIATED |
| { "ssl_fc_alpn", NULL, pat_parse_str, pat_match_str }, |
| #endif |
| { "ssl_fc_protocol", NULL, pat_parse_str, pat_match_str }, |
| { "ssl_fc_sni", "ssl_fc_sni", pat_parse_str, pat_match_str }, |
| { "ssl_fc_sni_end", "ssl_fc_sni", pat_parse_str, pat_match_end }, |
| { "ssl_fc_sni_reg", "ssl_fc_sni", pat_parse_reg, pat_match_reg }, |
| { /* END */ }, |
| }}; |
| |
| /* Note: must not be declared <const> as its list will be overwritten. |
| * Please take care of keeping this list alphabetically sorted, doing so helps |
| * all code contributors. |
| * Optional keywords are also declared with a NULL ->parse() function so that |
| * the config parser can report an appropriate error when a known keyword was |
| * not enabled. |
| */ |
| static struct bind_kw_list bind_kws = { "SSL", { }, { |
| { "alpn", bind_parse_alpn, 1 }, /* set ALPN supported protocols */ |
| { "ca-file", bind_parse_ca_file, 1 }, /* set CAfile to process verify on client cert */ |
| { "ca-ignore-err", bind_parse_ignore_err, 1 }, /* set error IDs to ignore on verify depth > 0 */ |
| { "ciphers", bind_parse_ciphers, 1 }, /* set SSL cipher suite */ |
| { "crl-file", bind_parse_crl_file, 1 }, /* set certificat revocation list file use on client cert verify */ |
| { "crt", bind_parse_crt, 1 }, /* load SSL certificates from this location */ |
| { "crt-ignore-err", bind_parse_ignore_err, 1 }, /* set error IDs to ingore on verify depth == 0 */ |
| { "crt-list", bind_parse_crt_list, 1 }, /* load a list of crt from this location */ |
| { "ecdhe", bind_parse_ecdhe, 1 }, /* defines named curve for elliptic curve Diffie-Hellman */ |
| { "force-sslv3", bind_parse_force_sslv3, 0 }, /* force SSLv3 */ |
| { "force-tlsv10", bind_parse_force_tlsv10, 0 }, /* force TLSv10 */ |
| { "force-tlsv11", bind_parse_force_tlsv11, 0 }, /* force TLSv11 */ |
| { "force-tlsv12", bind_parse_force_tlsv12, 0 }, /* force TLSv12 */ |
| { "no-sslv3", bind_parse_no_sslv3, 0 }, /* disable SSLv3 */ |
| { "no-tlsv10", bind_parse_no_tlsv10, 0 }, /* disable TLSv10 */ |
| { "no-tlsv11", bind_parse_no_tlsv11, 0 }, /* disable TLSv11 */ |
| { "no-tlsv12", bind_parse_no_tlsv12, 0 }, /* disable TLSv12 */ |
| { "no-tls-tickets", bind_parse_no_tls_tickets, 0 }, /* disable session resumption tickets */ |
| { "ssl", bind_parse_ssl, 0 }, /* enable SSL processing */ |
| { "strict-sni", bind_parse_strict_sni, 0 }, /* refuse negotiation if sni doesn't match a certificate */ |
| { "verify", bind_parse_verify, 1 }, /* set SSL verify method */ |
| { "npn", bind_parse_npn, 1 }, /* set NPN supported protocols */ |
| { NULL, NULL, 0 }, |
| }}; |
| |
| /* Note: must not be declared <const> as its list will be overwritten. |
| * Please take care of keeping this list alphabetically sorted, doing so helps |
| * all code contributors. |
| * Optional keywords are also declared with a NULL ->parse() function so that |
| * the config parser can report an appropriate error when a known keyword was |
| * not enabled. |
| */ |
| static struct srv_kw_list srv_kws = { "SSL", { }, { |
| { "ca-file", srv_parse_ca_file, 1, 0 }, /* set CAfile to process verify server cert */ |
| { "check-ssl", srv_parse_check_ssl, 0, 0 }, /* enable SSL for health checks */ |
| { "ciphers", srv_parse_ciphers, 1, 0 }, /* select the cipher suite */ |
| { "crl-file", srv_parse_crl_file, 1, 0 }, /* set certificate revocation list file use on server cert verify */ |
| { "crt", srv_parse_crt, 1, 0 }, /* set client certificate */ |
| { "force-sslv3", srv_parse_force_sslv3, 0, 0 }, /* force SSLv3 */ |
| { "force-tlsv10", srv_parse_force_tlsv10, 0, 0 }, /* force TLSv10 */ |
| { "force-tlsv11", srv_parse_force_tlsv11, 0, 0 }, /* force TLSv11 */ |
| { "force-tlsv12", srv_parse_force_tlsv12, 0, 0 }, /* force TLSv12 */ |
| { "no-sslv3", srv_parse_no_sslv3, 0, 0 }, /* disable SSLv3 */ |
| { "no-tlsv10", srv_parse_no_tlsv10, 0, 0 }, /* disable TLSv10 */ |
| { "no-tlsv11", srv_parse_no_tlsv11, 0, 0 }, /* disable TLSv11 */ |
| { "no-tlsv12", srv_parse_no_tlsv12, 0, 0 }, /* disable TLSv12 */ |
| { "no-tls-tickets", srv_parse_no_tls_tickets, 0, 0 }, /* disable session resumption tickets */ |
| { "ssl", srv_parse_ssl, 0, 0 }, /* enable SSL processing */ |
| { "verify", srv_parse_verify, 1, 0 }, /* set SSL verify method */ |
| { "verifyhost", srv_parse_verifyhost, 1, 0 }, /* require that SSL cert verifies for hostname */ |
| { NULL, NULL, 0, 0 }, |
| }}; |
| |
| /* transport-layer operations for SSL sockets */ |
| struct xprt_ops ssl_sock = { |
| .snd_buf = ssl_sock_from_buf, |
| .rcv_buf = ssl_sock_to_buf, |
| .rcv_pipe = NULL, |
| .snd_pipe = NULL, |
| .shutr = NULL, |
| .shutw = ssl_sock_shutw, |
| .close = ssl_sock_close, |
| .init = ssl_sock_init, |
| }; |
| |
| __attribute__((constructor)) |
| static void __ssl_sock_init(void) |
| { |
| STACK_OF(SSL_COMP)* cm; |
| |
| SSL_library_init(); |
| cm = SSL_COMP_get_compression_methods(); |
| sk_SSL_COMP_zero(cm); |
| sample_register_fetches(&sample_fetch_keywords); |
| acl_register_keywords(&acl_kws); |
| bind_register_keywords(&bind_kws); |
| srv_register_keywords(&srv_kws); |
| } |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |