mirror of
https://dev.iopsys.eu/bbf/bbfdm.git
synced 2025-12-10 07:44:39 +01:00
313 lines
10 KiB
C
313 lines
10 KiB
C
/*
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* Copyright (C) 2020 iopsys Software Solutions AB
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2.1
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* as published by the Free Software Foundation
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*
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* Author: Omar Kallel <omar.kallel@pivasoftware.com>
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*/
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#include "security.h"
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#define DATE_LEN 128
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#define MAX_CERT 32
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#ifdef LSSL
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#include <openssl/x509.h>
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#include <openssl/pem.h>
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#include <openssl/evp.h>
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#ifdef LOPENSSL
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#include <openssl/obj_mac.h>
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#endif
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static char certifcates_paths[MAX_CERT][256];
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struct certificate_profile {
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char *path;
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X509 *openssl_cert;
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struct uci_section *dmmap_sect;
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};
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/*************************************************************
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* INIT
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**************************************************************/
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void init_certificate(char *path,
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X509 *cert,
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struct uci_section *dmsect, struct certificate_profile *certprofile)
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{
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certprofile->path = path;
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certprofile->openssl_cert = cert;
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certprofile->dmmap_sect = dmsect;
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}
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/*************************************************************
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* COMMON FUNCTIONS
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**************************************************************/
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static char *get_certificate_sig_alg(int sig_nid)
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{
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switch(sig_nid) {
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case NID_sha256WithRSAEncryption:
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return "sha256WithRSAEncryption";
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case NID_sha384WithRSAEncryption:
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return "sha384WithRSAEncryption";
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case NID_sha512WithRSAEncryption:
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return "sha512WithRSAEncryption";
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case NID_sha224WithRSAEncryption:
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return "sha224WithRSAEncryption";
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case NID_md5WithRSAEncryption:
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return "md5WithRSAEncryption";
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case NID_sha1WithRSAEncryption:
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return "sha1WithRSAEncryption";
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default:
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return "";
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}
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return "";
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}
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static char *generate_serial_number(char *text, int length)
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{
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char *hex = (char *)dmcalloc(100, sizeof(char));
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unsigned pos = 0;
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for (int i = 0; i < length; i++) {
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pos += snprintf(&hex[pos], 100 - pos, "%02x:", text[i] & 0xff);
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}
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if (pos)
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hex[pos - 1] = 0;
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return hex;
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}
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static void get_certificate_paths(void)
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{
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struct uci_section *s = NULL;
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int cidx;
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for (cidx=0; cidx<MAX_CERT; cidx++)
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memset(certifcates_paths[cidx], '\0', 256);
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cidx = 0;
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uci_foreach_sections("owsd", "owsd-listen", s) {
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char *cert;
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dmuci_get_value_by_section_string(s, "cert", &cert);
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if (*cert == '\0')
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continue;
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if (cidx >= MAX_CERT)
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break;
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if(!file_exists(cert) || !is_regular_file(cert))
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continue;
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DM_STRNCPY(certifcates_paths[cidx], cert, 256);
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cidx++;
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}
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uci_foreach_sections("openvpn", "openvpn", s) {
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char *cert;
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dmuci_get_value_by_section_string(s, "cert", &cert);
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if (*cert == '\0')
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continue;
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if (cidx >= MAX_CERT)
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break;
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if(!file_exists(cert) || !is_regular_file(cert))
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continue;
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DM_STRNCPY(certifcates_paths[cidx], cert, 256);
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cidx++;
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}
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uci_foreach_sections("obuspa", "obuspa", s) {
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char *cert;
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dmuci_get_value_by_section_string(s, "cert", &cert);
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if (*cert == '\0')
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continue;
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if (cidx >= MAX_CERT)
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break;
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if(!file_exists(cert) || !is_regular_file(cert))
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continue;
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DM_STRNCPY(certifcates_paths[cidx], cert, 256);
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cidx++;
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}
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}
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/*************************************************************
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* ENTRY METHOD
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**************************************************************/
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static int browseSecurityCertificateInst(struct dmctx *dmctx, DMNODE *parent_node, void *prev_data, char *prev_instance)
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{
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char *inst = NULL;
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struct uci_section *dmmap_sect = NULL;
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struct certificate_profile certificateprofile = {};
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get_certificate_paths();
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int i;
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for (i = 0; i < MAX_CERT; i++) {
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if(!DM_STRLEN(certifcates_paths[i]))
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break;
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FILE *fp = fopen(certifcates_paths[i], "r");
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if (fp == NULL)
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continue;
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X509 *cert = PEM_read_X509(fp, NULL, NULL, NULL);
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if (!cert) {
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fclose(fp);
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continue;
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}
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if ((dmmap_sect = get_dup_section_in_dmmap_opt("dmmap_security", "security_certificate", "path", certifcates_paths[i])) == NULL) {
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dmuci_add_section_bbfdm("dmmap_security", "security_certificate", &dmmap_sect);
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dmuci_set_value_by_section_bbfdm(dmmap_sect, "path", certifcates_paths[i]);
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}
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init_certificate(certifcates_paths[i], cert, dmmap_sect, &certificateprofile);
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inst = handle_instance(dmctx, parent_node, dmmap_sect, "security_certificate_instance", "security_certificate_alias");
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if (DM_LINK_INST_OBJ(dmctx, parent_node, (void *)&certificateprofile, inst) == DM_STOP)
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break;
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X509_free(cert);
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cert = NULL;
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fclose(fp);
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fp = NULL;
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}
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return 0;
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}
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/*************************************************************
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* GET & SET PARAM
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**************************************************************/
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static int get_Security_CertificateNumberOfEntries(char *refparam, struct dmctx *ctx, void *data, char *instance, char **value)
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{
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int cnt = get_number_of_entries(ctx, data, instance, browseSecurityCertificateInst);
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dmasprintf(value, "%d", cnt);
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return 0;
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}
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static int get_SecurityCertificate_LastModif(char *refparam, struct dmctx *ctx, void *data, char *instance, char **value)
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{
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struct certificate_profile *cert_profile = (struct certificate_profile*)data;
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struct stat b;
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char t[sizeof("AAAA-MM-JJTHH:MM:SSZ")] = "0001-01-01T00:00:00Z";
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if (!stat(cert_profile->path, &b))
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strftime(t, sizeof(t), "%Y-%m-%dT%H:%M:%SZ", gmtime(&b.st_mtime));
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*value = dmstrdup(t);
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return 0;
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}
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static int get_SecurityCertificate_SerialNumber(char *refparam, struct dmctx *ctx, void *data, char *instance, char **value)
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{
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struct certificate_profile *cert_profile = (struct certificate_profile*)data;
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ASN1_INTEGER *serial = X509_get_serialNumber(cert_profile->openssl_cert);
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*value = generate_serial_number((char *)serial->data, serial->length);
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return 0;
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}
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static int get_SecurityCertificate_Issuer(char *refparam, struct dmctx *ctx, void *data, char *instance, char **value)
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{
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struct certificate_profile *cert_profile = (struct certificate_profile *)data;
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char buf[256] = {0};
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X509_NAME_oneline(X509_get_issuer_name(cert_profile->openssl_cert), buf, sizeof(buf));
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*value = dmstrdup(buf);
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if (*value[0] == '/')
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(*value)++;
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*value = replace_char(*value, '/', ' ');
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return 0;
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}
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static int get_SecurityCertificate_NotBefore(char *refparam, struct dmctx *ctx, void *data, char *instance, char **value)
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{
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char not_before_str[DATE_LEN];
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struct tm tm;
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struct certificate_profile *cert_profile = (struct certificate_profile*)data;
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const ASN1_TIME *not_before = X509_get0_notBefore(cert_profile->openssl_cert);
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*value = "0001-01-01T00:00:00Z";
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#ifdef LWOLFSSL
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ASN1_TIME_to_string((ASN1_TIME *)not_before, not_before_str, DATE_LEN);
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if (!strptime(not_before_str, "%b %d %H:%M:%S %Y", &tm))
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return -1;
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#else
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ASN1_TIME_to_tm(not_before, &tm);
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#endif
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strftime(not_before_str, sizeof(not_before_str), "%Y-%m-%dT%H:%M:%SZ", &tm);
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*value = dmstrdup(not_before_str);
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return 0;
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}
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static int get_SecurityCertificate_NotAfter(char *refparam, struct dmctx *ctx, void *data, char *instance, char **value)
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{
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char not_after_str[DATE_LEN];
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struct tm tm;
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struct certificate_profile *cert_profile = (struct certificate_profile*)data;
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const ASN1_TIME *not_after = X509_get0_notAfter(cert_profile->openssl_cert);
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*value = "0001-01-01T00:00:00Z";
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#ifdef LWOLFSSL
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ASN1_TIME_to_string((ASN1_TIME *)not_after, not_after_str, DATE_LEN);
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if (!strptime(not_after_str, "%b %d %H:%M:%S %Y", &tm))
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return -1;
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#else
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ASN1_TIME_to_tm((ASN1_TIME *)not_after, &tm);
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#endif
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strftime(not_after_str, sizeof(not_after_str), "%Y-%m-%dT%H:%M:%SZ", &tm);
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*value = dmstrdup(not_after_str);
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return 0;
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}
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static int get_SecurityCertificate_Subject(char *refparam, struct dmctx *ctx, void *data, char *instance, char **value)
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{
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struct certificate_profile *cert_profile = (struct certificate_profile *)data;
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char buf[256] = {0};
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X509_NAME_oneline(X509_get_subject_name(cert_profile->openssl_cert), buf, sizeof(buf));
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*value = dmstrdup(buf);
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if (*value[0] == '/')
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(*value)++;
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*value = replace_char(*value, '/', ' ');
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return 0;
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}
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static int get_SecurityCertificate_SignatureAlgorithm(char *refparam, struct dmctx *ctx, void *data, char *instance, char **value)
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{
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struct certificate_profile *cert_profile = (struct certificate_profile*)data;
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*value = dmstrdup(get_certificate_sig_alg(X509_get_signature_nid(cert_profile->openssl_cert)));
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return 0;
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}
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/**********************************************************************************************************************************
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* OBJ & PARAM DEFINITION
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***********************************************************************************************************************************/
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/* *** Device.Security. *** */
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DMOBJ tSecurityObj[] = {
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/* OBJ, permission, addobj, delobj, checkdep, browseinstobj, nextdynamicobj, dynamicleaf, nextobj, leaf, linker, bbfdm_type, uniqueKeys, version*/
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{"Certificate", &DMREAD, NULL, NULL, NULL, browseSecurityCertificateInst, NULL, NULL, NULL, tSecurityCertificateParams, NULL, BBFDM_BOTH, LIST_KEY{"SerialNumber", "Issuer", NULL}, "2.4"},
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{0}
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};
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DMLEAF tSecurityParams[] = {
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/* PARAM, permission, type, getvalue, setvalue, bbfdm_type, version*/
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{"CertificateNumberOfEntries", &DMREAD, DMT_UNINT, get_Security_CertificateNumberOfEntries, NULL, BBFDM_BOTH, "2.4"},
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{0}
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};
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/* *** Device.Security.Certificate.{i}. *** */
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DMLEAF tSecurityCertificateParams[] = {
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/* PARAM, permission, type, getvalue, setvalue, bbfdm_type, version*/
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//{"Enable", &DMWRITE, DMT_BOOL, get_SecurityCertificate_Enable, set_SecurityCertificate_Enable, BBFDM_BOTH, "2.4"},
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{"LastModif", &DMREAD, DMT_TIME, get_SecurityCertificate_LastModif, NULL, BBFDM_BOTH, "2.4"},
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{"SerialNumber", &DMREAD, DMT_STRING, get_SecurityCertificate_SerialNumber, NULL, BBFDM_BOTH, "2.4"},
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{"Issuer", &DMREAD, DMT_STRING, get_SecurityCertificate_Issuer, NULL, BBFDM_BOTH, "2.4"},
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{"NotBefore", &DMREAD, DMT_TIME, get_SecurityCertificate_NotBefore, NULL, BBFDM_BOTH, "2.4"},
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{"NotAfter", &DMREAD, DMT_TIME, get_SecurityCertificate_NotAfter, NULL, BBFDM_BOTH, "2.4"},
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{"Subject", &DMREAD, DMT_STRING, get_SecurityCertificate_Subject, NULL, BBFDM_BOTH, "2.4"},
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//{"SubjectAlt", &DMREAD, DMT_STRING, get_SecurityCertificate_SubjectAlt, NULL, BBFDM_BOTH, "2.4"},
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{"SignatureAlgorithm", &DMREAD, DMT_STRING, get_SecurityCertificate_SignatureAlgorithm, NULL, BBFDM_BOTH, "2.4"},
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{0}
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};
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#endif /* LSSL */
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