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Diffstat (limited to 'src/libimcv/os_info/os_info.c')
-rw-r--r--src/libimcv/os_info/os_info.c606
1 files changed, 606 insertions, 0 deletions
diff --git a/src/libimcv/os_info/os_info.c b/src/libimcv/os_info/os_info.c
new file mode 100644
index 000000000..13374c876
--- /dev/null
+++ b/src/libimcv/os_info/os_info.c
@@ -0,0 +1,606 @@
+/*
+ * Copyright (C) 2012 Andreas Steffen
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * 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. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#include "os_info.h"
+
+#include <sys/utsname.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include <collections/linked_list.h>
+#include <utils/debug.h>
+
+typedef struct private_os_info_t private_os_info_t;
+
+ENUM(os_type_names, OS_TYPE_UNKNOWN, OS_TYPE_ANDROID,
+ "Unknown",
+ "Debian",
+ "Ubuntu",
+ "Fedora",
+ "Red Hat",
+ "CentOS",
+ "SUSE",
+ "Gentoo",
+ "Android"
+);
+
+ENUM(os_fwd_status_names, OS_FWD_DISABLED, OS_FWD_UNKNOWN,
+ "disabled",
+ "enabled",
+ "unknown"
+);
+
+ENUM(os_package_state_names, OS_PACKAGE_STATE_UPDATE, OS_PACKAGE_STATE_BLACKLIST,
+ "",
+ " [s]",
+ " [b]"
+);
+
+/**
+ * Private data of an os_info_t object.
+ *
+ */
+struct private_os_info_t {
+
+ /**
+ * Public os_info_t interface.
+ */
+ os_info_t public;
+
+ /**
+ * OS type
+ */
+ os_type_t type;
+
+ /**
+ * OS name
+ */
+ chunk_t name;
+
+ /**
+ * OS version
+ */
+ chunk_t version;
+
+};
+
+METHOD(os_info_t, get_type, os_type_t,
+ private_os_info_t *this)
+{
+ return this->type;
+}
+
+METHOD(os_info_t, get_name, chunk_t,
+ private_os_info_t *this)
+{
+ return this->name;
+}
+
+METHOD(os_info_t, get_numeric_version, void,
+ private_os_info_t *this, u_int32_t *major, u_int32_t *minor)
+{
+ u_char *pos;
+
+ if (major)
+ {
+ *major = atol(this->version.ptr);
+ }
+ pos = memchr(this->version.ptr, '.', this->version.len);
+ if (minor)
+ {
+ *minor = pos ? atol(pos + 1) : 0;
+ }
+}
+
+METHOD(os_info_t, get_version, chunk_t,
+ private_os_info_t *this)
+{
+ return this->version;
+}
+
+METHOD(os_info_t, get_fwd_status, os_fwd_status_t,
+ private_os_info_t *this)
+{
+ const char ip_forward[] = "/proc/sys/net/ipv4/ip_forward";
+ char buf[2];
+ FILE *file;
+
+ os_fwd_status_t fwd_status = OS_FWD_UNKNOWN;
+
+ file = fopen(ip_forward, "r");
+ if (file)
+ {
+ if (fread(buf, 1, 1, file) == 1)
+ {
+ switch (buf[0])
+ {
+ case '0':
+ fwd_status = OS_FWD_DISABLED;
+ break;
+ case '1':
+ fwd_status = OS_FWD_ENABLED;
+ break;
+ default:
+ DBG1(DBG_IMC, "\"%s\" returns invalid value ", ip_forward);
+ break;
+ }
+ }
+ else
+ {
+ DBG1(DBG_IMC, "could not read from \"%s\"", ip_forward);
+ }
+ fclose(file);
+ }
+ else
+ {
+ DBG1(DBG_IMC, "failed to open \"%s\"", ip_forward);
+ }
+
+ return fwd_status;
+}
+
+METHOD(os_info_t, get_uptime, time_t,
+ private_os_info_t *this)
+{
+ const char proc_uptime[] = "/proc/uptime";
+ FILE *file;
+ time_t uptime;
+
+ file = fopen(proc_uptime, "r");
+ if (!file)
+ {
+ DBG1(DBG_IMC, "failed to open \"%s\"", proc_uptime);
+ return 0;
+ }
+ if (fscanf(file, "%u", &uptime) != 1)
+ {
+ DBG1(DBG_IMC, "failed to read file \"%s\"", proc_uptime);
+ uptime = 0;
+ }
+ fclose(file);
+
+ return uptime;
+}
+
+METHOD(os_info_t, get_setting, chunk_t,
+ private_os_info_t *this, char *name)
+{
+ FILE *file;
+ u_char buf[2048];
+ size_t i = 0;
+ chunk_t value;
+
+ if (!strneq(name, "/etc/", 5) && !strneq(name, "/proc/", 6) &&
+ !strneq(name, "/sys/", 5) && !strneq(name, "/var/", 5))
+ {
+ /**
+ * In order to guarantee privacy, only settings from the
+ * /etc/, /proc/ and /sys/ directories can be retrieved
+ */
+ DBG1(DBG_IMC, "not allowed to access '%s'", name);
+
+ return chunk_empty;
+ }
+
+ file = fopen(name, "r");
+ if (!file)
+ {
+ DBG1(DBG_IMC, "failed to open '%s'", name);
+
+ return chunk_empty;
+ }
+ while (i < sizeof(buf) && fread(buf + i, 1, 1, file) == 1)
+ {
+ i++;
+ }
+ fclose(file);
+
+ value = chunk_create(buf, i);
+
+ return chunk_clone(value);
+}
+
+typedef struct {
+ /**
+ * implements enumerator_t
+ */
+ enumerator_t public;
+
+ /**
+ * package info pipe stream
+ */
+ FILE* file;
+
+ /**
+ * line buffer
+ */
+ u_char line[512];
+
+} package_enumerator_t;
+
+/**
+ * Implementation of package_enumerator.destroy.
+ */
+static void package_enumerator_destroy(package_enumerator_t *this)
+{
+ pclose(this->file);
+ free(this);
+}
+
+/**
+ * Implementation of package_enumerator.enumerate
+ */
+static bool package_enumerator_enumerate(package_enumerator_t *this, ...)
+{
+ chunk_t *name, *version;
+ u_char *pos;
+ va_list args;
+
+ while (TRUE)
+ {
+ if (!fgets(this->line, sizeof(this->line), this->file))
+ {
+ return FALSE;
+ }
+
+ pos = strchr(this->line, '\t');
+ if (!pos)
+ {
+ return FALSE;
+ }
+ *pos++ = '\0';
+
+ if (!streq(this->line, "install ok installed"))
+ {
+ continue;
+ }
+ va_start(args, this);
+
+ name = va_arg(args, chunk_t*);
+ name->ptr = pos;
+ pos = strchr(pos, '\t');
+ if (!pos)
+ {
+ va_end(args);
+ return FALSE;
+ }
+ name->len = pos++ - name->ptr;
+
+ version = va_arg(args, chunk_t*);
+ version->ptr = pos;
+ version->len = strlen(pos) - 1;
+
+ va_end(args);
+ return TRUE;
+ }
+}
+
+METHOD(os_info_t, create_package_enumerator, enumerator_t*,
+ private_os_info_t *this)
+{
+ FILE *file;
+ const char command[] = "dpkg-query --show --showformat="
+ "'${Status}\t${Package}\t${Version}\n'";
+ package_enumerator_t *enumerator;
+
+ /* Only Debian and Ubuntu package enumeration is currently supported */
+ if (this->type != OS_TYPE_DEBIAN && this->type != OS_TYPE_UBUNTU)
+ {
+ return NULL;
+ }
+
+ /* Open a pipe stream for reading the output of the dpkg-query commmand */
+ file = popen(command, "r");
+ if (!file)
+ {
+ DBG1(DBG_IMC, "failed to run dpkg command");
+ return NULL;
+ }
+
+ /* Create a package enumerator instance */
+ enumerator = malloc_thing(package_enumerator_t);
+ enumerator->public.enumerate = (void*)package_enumerator_enumerate;
+ enumerator->public.destroy = (void*)package_enumerator_destroy;
+ enumerator->file = file;
+
+ return (enumerator_t*)enumerator;
+}
+
+
+METHOD(os_info_t, destroy, void,
+ private_os_info_t *this)
+{
+ free(this->name.ptr);
+ free(this->version.ptr);
+ free(this);
+}
+
+#define RELEASE_LSB 0
+#define RELEASE_DEBIAN 1
+
+/**
+ * Determine Linux distribution version and hardware platform
+ */
+static bool extract_platform_info(os_type_t *type, chunk_t *name,
+ chunk_t *version)
+{
+ FILE *file;
+ u_char buf[BUF_LEN], *pos = buf;
+ int len = BUF_LEN - 1;
+ os_type_t os_type = OS_TYPE_UNKNOWN;
+ chunk_t os_name = chunk_empty;
+ chunk_t os_version = chunk_empty;
+ char *os_str;
+ struct utsname uninfo;
+ int i;
+
+ /* Linux/Unix distribution release info (from http://linuxmafia.com) */
+ const char* releases[] = {
+ "/etc/lsb-release", "/etc/debian_version",
+ "/etc/SuSE-release", "/etc/novell-release",
+ "/etc/sles-release", "/etc/redhat-release",
+ "/etc/fedora-release", "/etc/gentoo-release",
+ "/etc/slackware-version", "/etc/annvix-release",
+ "/etc/arch-release", "/etc/arklinux-release",
+ "/etc/aurox-release", "/etc/blackcat-release",
+ "/etc/cobalt-release", "/etc/conectiva-release",
+ "/etc/debian_release", "/etc/immunix-release",
+ "/etc/lfs-release", "/etc/linuxppc-release",
+ "/etc/mandrake-release", "/etc/mandriva-release",
+ "/etc/mandrakelinux-release", "/etc/mklinux-release",
+ "/etc/pld-release", "/etc/redhat_version",
+ "/etc/slackware-release", "/etc/e-smith-release",
+ "/etc/release", "/etc/sun-release",
+ "/etc/tinysofa-release", "/etc/turbolinux-release",
+ "/etc/ultrapenguin-release", "/etc/UnitedLinux-release",
+ "/etc/va-release", "/etc/yellowdog-release"
+ };
+
+ const char lsb_distrib_id[] = "DISTRIB_ID=";
+ const char lsb_distrib_release[] = "DISTRIB_RELEASE=";
+
+ for (i = 0; i < countof(releases); i++)
+ {
+ file = fopen(releases[i], "r");
+ if (!file)
+ {
+ continue;
+ }
+
+ /* read release file into buffer */
+ fseek(file, 0, SEEK_END);
+ len = min(ftell(file), len);
+ rewind(file);
+ buf[len] = '\0';
+ if (fread(buf, 1, len, file) != len)
+ {
+ DBG1(DBG_IMC, "failed to read file \"%s\"", releases[i]);
+ fclose(file);
+ return FALSE;
+ }
+ fclose(file);
+
+ DBG1(DBG_IMC, "processing \"%s\" file", releases[i]);
+
+ switch (i)
+ {
+ case RELEASE_LSB:
+ {
+ /* Determine Distribution ID */
+ pos = strstr(buf, lsb_distrib_id);
+ if (!pos)
+ {
+ DBG1(DBG_IMC, "failed to find begin of DISTRIB_ID field");
+ return FALSE;
+ }
+ pos += strlen(lsb_distrib_id);
+
+ os_name.ptr = pos;
+
+ pos = strchr(pos, '\n');
+ if (!pos)
+ {
+ DBG1(DBG_IMC, "failed to find end of DISTRIB_ID field");
+ return FALSE;
+ }
+ os_name.len = pos - os_name.ptr;
+
+ /* Determine Distribution Release */
+ pos = strstr(buf, lsb_distrib_release);
+ if (!pos)
+ {
+ DBG1(DBG_IMC, "failed to find begin of DISTRIB_RELEASE field");
+ return FALSE;
+ }
+ pos += strlen(lsb_distrib_release);
+
+ os_version.ptr = pos;
+
+ pos = strchr(pos, '\n');
+ if (!pos)
+ {
+ DBG1(DBG_IMC, "failed to find end of DISTRIB_RELEASE field");
+ return FALSE;
+ }
+ os_version.len = pos - os_version.ptr;
+
+ break;
+ }
+ case RELEASE_DEBIAN:
+ {
+ os_type = OS_TYPE_DEBIAN;
+
+ os_version.ptr = buf;
+ pos = strchr(buf, '\n');
+ if (!pos)
+ {
+ DBG1(DBG_PTS, "failed to find end of release string");
+ return FALSE;
+ }
+
+ os_version.len = pos - os_version.ptr;
+
+ break;
+ }
+ default:
+ {
+ const char str_release[] = " release ";
+
+ os_name.ptr = buf;
+
+ pos = strstr(buf, str_release);
+ if (!pos)
+ {
+ DBG1(DBG_IMC, "failed to find release keyword");
+ return FALSE;
+ }
+
+ os_name.len = pos - os_name.ptr;
+
+ pos += strlen(str_release);
+ os_version.ptr = pos;
+
+ pos = strchr(pos, '\n');
+ if (!pos)
+ {
+ DBG1(DBG_IMC, "failed to find end of release string");
+ return FALSE;
+ }
+
+ os_version.len = pos - os_version.ptr;
+
+ break;
+ }
+ }
+ break;
+ }
+
+ if (!os_version.ptr)
+ {
+ DBG1(DBG_IMC, "no distribution release file found");
+ return FALSE;
+ }
+
+ if (uname(&uninfo) < 0)
+ {
+ DBG1(DBG_IMC, "could not retrieve machine architecture");
+ return FALSE;
+ }
+
+ /* Try to find a matching OS type based on the OS name */
+ if (os_type == OS_TYPE_UNKNOWN)
+ {
+ os_type = os_type_from_name(os_name);
+ }
+
+ /* If known use the official OS name */
+ if (os_type != OS_TYPE_UNKNOWN)
+ {
+ os_str = enum_to_name(os_type_names, os_type);
+ os_name = chunk_create(os_str, strlen(os_str));
+ }
+
+ /* copy OS type */
+ *type = os_type;
+
+ /* copy OS name */
+ *name = chunk_clone(os_name);
+
+ /* copy OS version and machine architecture */
+ *version = chunk_alloc(os_version.len + 1 + strlen(uninfo.machine));
+ pos = version->ptr;
+ memcpy(pos, os_version.ptr, os_version.len);
+ pos += os_version.len;
+ *pos++ = ' ';
+ memcpy(pos, uninfo.machine, strlen(uninfo.machine));
+
+ return TRUE;
+}
+
+/**
+ * See header
+ */
+os_type_t os_type_from_name(chunk_t name)
+{
+ os_type_t type;
+ char *name_str;
+
+ for (type = OS_TYPE_DEBIAN; type < OS_TYPE_ROOF; type++)
+ {
+ /* name_str is a substring of name.ptr */
+ name_str = enum_to_name(os_type_names, type);
+ if (memeq(name.ptr, name_str, min(name.len, strlen(name_str))))
+ {
+ return type;
+ }
+ }
+ return OS_TYPE_UNKNOWN;
+}
+
+/**
+ * See header
+ */
+os_info_t *os_info_create(void)
+{
+ private_os_info_t *this;
+ chunk_t name, version;
+ os_type_t type;
+
+ /* As an option OS name and OS version can be configured manually */
+ name.ptr = lib->settings->get_str(lib->settings,
+ "libimcv.os_info.name", NULL);
+ version.ptr = lib->settings->get_str(lib->settings,
+ "libimcv.os_info.version", NULL);
+ if (name.ptr && version.ptr)
+ {
+ name.len = strlen(name.ptr);
+ name = chunk_clone(name);
+
+ version.len = strlen(version.ptr);
+ version = chunk_clone(version);
+
+ type = os_type_from_name(name);
+ }
+ else
+ {
+ if (!extract_platform_info(&type, &name, &version))
+ {
+ return NULL;
+ }
+ }
+ DBG1(DBG_IMC, "operating system name is '%.*s'",
+ name.len, name.ptr);
+ DBG1(DBG_IMC, "operating system version is '%.*s'",
+ version.len, version.ptr);
+
+ INIT(this,
+ .public = {
+ .get_type = _get_type,
+ .get_name = _get_name,
+ .get_numeric_version = _get_numeric_version,
+ .get_version = _get_version,
+ .get_fwd_status = _get_fwd_status,
+ .get_uptime = _get_uptime,
+ .get_setting = _get_setting,
+ .create_package_enumerator = _create_package_enumerator,
+ .destroy = _destroy,
+ },
+ .type = type,
+ .name = name,
+ .version = version,
+ );
+
+ return &this->public;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 13:05:39 +0000