Merge branch 'dev'

.vscode/settings.json

@@ -0,0 +1,12 @@
+{
+    "files.associations": {
+        "assert.h": "c",
+        "ip2region.h": "c",
+        "conf.h": "c",
+        "ccronexpr.h": "c",
+        "clamscan.h": "c",
+        "libiptc.h": "c",
+        "stdio.h": "c",
+        "nginx.h": "c"
+    }
+}

Makefile

@@ -36,9 +36,9 @@ LIBCOMMON__CFLAGS += -DHAVE_CONFIG_H -I./clamav/common -I./clamav/libclamav -I./
 LIBCOMMON_LIB += ./clamav/common/cert_util.c.o ./clamav/common/actions.c.o ./clamav/common/clamdcom.c.o ./clamav/common/getopt.c.o ./clamav/common/hostid.c.o ./clamav/common/idmef_logging.c.o ./clamav/common/misc.c.o ./clamav/common/optparser.c.o ./clamav/common/output.c.o ./clamav/common/tar.c.o ./clamav/common/linux/cert_util_linux.c.o
 
 
-all: libclamav_rust libclamav rhost
+all: libclamav_rust libclamav rhost nginx.o
 
-rhost: conf.o rhost.o libiptc.o ccronexpr.o
+rhost: conf.o rhost.o libiptc.o ccronexpr.o nginx.o disk.o
 	$(CC) $(ip2region_CFLAGS) ip2region/ip2region.c
 	$(CC) $(ip2region_CFLAGS) ip2region/xdb_searcher.c
 	$(CC) $(cJSON_CFLAGS) cJSON/cJSON.c
@@ -69,7 +69,7 @@ libclamav:
     
 
 test:
-	echo $(CMAKE) $(ARCH)
+	echo $(CMAKE) $(ARCH) $(CFLAGS)
 
 static: conf.o rhost.o libiptc.o
 	$(CC) $(IPTC_CFLAGS) -c libiptc/libip4tc.c -o libiptc/libip4tc.o

README.md

@@ -21,7 +21,7 @@ Debian
     freshclam  # 更新病毒库(必要)
     
 
-    Debian系统使用libiptc库需要nftables切换到iptables
+    Debian系统使用libiptc库需要nftables切换到iptables (使用了libip4tc-dev库)
     Switching to the legacy version:(切换到 iptables)
     update-alternatives --set iptables /usr/sbin/iptables-legacy
     update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy
@@ -65,10 +65,27 @@ make all
 ./rhost     # 只处理非法攻击
 
 
-关闭
+关闭:
 killall rhost
 
 
+帮助:
+./rhost -h
+       Rhost Reject host&scan for viruses (Rhost 拒绝主机并扫描病毒)
+Author: AIXIAO@AIXIAO.ME
+Version: 1.0
+Usage: [-?h] [-d]
+
+Options:
+    -d                     : Background running
+    -? -h --help           : help information
+           The configuration file needs to be in the same directory as the executable file!
+           配置文件需要与可执行文件位于同一目录中！
+
+
+May 22 2024 15:05:59 Compile、link.
+
+
 ```
 
 ```text
@@ -78,8 +95,10 @@ global {
     DAEMON = "off";                         // on开启后台运行,off不开启(弃用)
     TIME = "10";                            // 睡眠时间(大于等于1,单位秒)
     
+
     PUBLIC_IP = "http://inet-ip.info";      // 获取公网IP
     
+
     IS_DISK = 1;                            // 磁盘使用率(1开启,非1关闭)
     DISK_USE = 95;                          // 任意某块磁盘使用率告警(大于等于1)
     
@@ -87,32 +106,36 @@ global {
     IS_BLOCKED = 1;                         // 是否封禁攻击IP(1开启,非1关闭)
     REFUSE_NUMBER = 3;                      // 拒绝攻击次数
     
+
     CLAMAV = 1;                             // clamav 是否扫描病毒(1开启,非1关闭)
     CLAMAV_ARG = "-r / --exclude-dir=^/sys|^/dev|^/proc|^/opt/infected|^/root|^/home|^/mnt|^/usr|^/var  --move=/opt/infected --max-filesize 1024M -l clamscan.log";
-    CLAMAV_TIME = "* 1 4 * * *";          // clamav 扫描时间(Cron格式, 秒 分 时 天 月 周)
+    CLAMAV_TIME = "* 45 11 * * *";          // clamav 扫描时间(Cron格式, 秒 分 时 天 月 周)
     
     
     IPV4_RESTRICTION = 1;                   // 是否启用IP白名单(1开启,非1关闭)
-    IPV4_WHITE_LIST = "1.1.1.1 2.2.2.2 ";           // IP白名单(空格隔开)
+    IPV4_WHITE_LIST = "1.1.1.1 2.2.2.2 ";   // IP白名单(空格隔开)
     
     
     REGION = 1;                             // 是否启用地域白名单(1开启,非1关闭)
     IP2REGION = 1;                          // 是否使用本地 ip2region 地址定位库(1使用,非1不使用)
-    //REGION_URL = "http://opendata.baidu.com/api.php?query=%s&co=&resource_id=6006&oe=utf8";       // 获取IP地域(aliyun付费API, 弃用)
+    REGION_LIST = "河南 郑州 上海";         // 地域列表(空格隔开)
-    REGION_URL = "https://api01.aliyun.venuscn.com/ip?ip=%s -H Authorization:APPCODE a1d842b8afda418c8ea24271a4e16b1f";
+
-    REGION_LIST = "河南 郑州 上海";              // 地域列表(空格隔开)
+
+    NGINX = 1;                                          // 是否启用Nginx白名单
+    NGINX_LOG_FILE= "/usr/local/nginx/logs/access.log"; // Nginx 日志文件
+    NGINX_REGION_LIST = "中国 河南 郑州 上海";          // 地域列表(空格隔开)
     
     
     IS_MAIL = 0;                            // 开启邮件告警(1开启,非1关闭)
     
     
-    IS_DING_WEBHOOK = 0;                    // 开启叮叮告警(1开启,非1关闭)
+    IS_DING_WEBHOOK = 1;                    // 开启叮叮告警(1开启,非1关闭)
     PHONE = "15565979082";                  // @的人手机号
-    DING_WEBHOOK = "https://oapi.dingtalk.com/robot/send?access_token=7f069c672cb878987aa6772cca336740eece4ce36bde12b51b45e9f440e0565a";        // 钉钉WEBHOOK
+    DING_WEBHOOK = "https://oapi.dingtalk.com/robot/send?access_token=396bce0384cded025087cff3c176ea5e9afb9bd8fcaa46d6fa8c51dd172ba513";        // 钉钉WEBHOOK
 
 
-    IS_QQMAIL = 1;                          // 开启QQ邮箱告警(默认使用gomail：https://git.aixiao.me/aixiao/gomail.git)(1开启,非1关闭)
+    IS_QQMAIL = 1;                          // 开启QQ邮箱告警(默认使用gomail: https://git.aixiao.me/aixiao/gomail.git)(1开启,非1关闭)
-    RECV_MAIL = "1605227279@qq.com";        // 接收者QQ
+    RECV_MAIL = "1605227279@qq.com";        // 接收者邮箱
 }
 
 

clamav/libclamav_rust/.rustc_info.json

@@ -1 +1 @@
-{"rustc_fingerprint":537842707314038760,"outputs":{"10376369925670944939":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.so\nlib___.so\nlib___.a\nlib___.so\n/usr\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"gnu\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"linux\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"unknown\"\nunix\n","stderr":""},"4614504638168534921":{"success":true,"status":"","code":0,"stdout":"rustc 1.63.0\nbinary: rustc\ncommit-hash: unknown\ncommit-date: unknown\nhost: x86_64-unknown-linux-gnu\nrelease: 1.63.0\nLLVM version: 14.0.6\n","stderr":""},"15493033989842322569":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.so\nlib___.so\nlib___.a\nlib___.so\n/usr\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"gnu\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"linux\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"unknown\"\nunix\n","stderr":""},"15697416045686424142":{"success":false,"status":"exit status: 1","code":1,"stdout":"","stderr":"error: `-Csplit-debuginfo` is unstable on this platform\n\n"},"9218888252049904301":{"success":false,"status":"exit status: 1","code":1,"stdout":"","stderr":"error: `-Csplit-debuginfo` is unstable on this platform\n\n"}},"successes":{}}
+{"rustc_fingerprint":5376818386984183904,"outputs":{"14371922958718593042":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.so\nlib___.so\nlib___.a\nlib___.so\n/usr\noff\npacked\nunpacked\n___\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"gnu\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"linux\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"unknown\"\nunix\n","stderr":""},"4614504638168534921":{"success":true,"status":"","code":0,"stdout":"rustc 1.71.1\nbinary: rustc\ncommit-hash: unknown\ncommit-date: unknown\nhost: x86_64-unknown-linux-gnu\nrelease: 1.71.1\nLLVM version: 16.0.6\n","stderr":""},"15729799797837862367":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.so\nlib___.so\nlib___.a\nlib___.so\n/usr\noff\npacked\nunpacked\n___\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"gnu\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"linux\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"unknown\"\nunix\n","stderr":""}},"successes":{}}

conf.c

@@ -218,6 +218,24 @@ static void parse_global_module(char *content, conf * conf)
             val_begin_len = val_end - val_begin;
             conf->DISK_USE = atoi(val_begin);
         }
+
+        // NGINX
+        if (strcasecmp(var, "NGINX") == 0) {
+            val_begin_len = val_end - val_begin;
+            conf->NGINX = atoi(val_begin);
+        }
+        if (strcasecmp(var, "NGINX_LOG_FILE") == 0) {
+            val_begin_len = val_end - val_begin;
+            conf->NGINX_LOG_FILE_LEN = val_begin_len;
+            if (copy_new_mem(val_begin, val_begin_len, &conf->NGINX_LOG_FILE) != 0)
+                return;
+        }
+        if (strcasecmp(var, "NGINX_REGION_LIST") == 0) {
+            val_begin_len = val_end - val_begin;
+            conf->NGINX_REGION_LIST_LEN = val_begin_len;
+            if (copy_new_mem(val_begin, val_begin_len, &conf->NGINX_REGION_LIST) != 0)
+                return;
+        }
         
         content = strchr(lineEnd + 1, '\n');
     }
@@ -313,6 +331,11 @@ void free_conf(conf * conf)
     if (conf->CLAMAV_ARG)
         free(conf->CLAMAV_ARG);
     
+    // NGINX
+    if (conf->NGINX_LOG_FILE)
+        free(conf->NGINX_LOG_FILE);
+    if (conf->NGINX_REGION_LIST)
+        free(conf->NGINX_REGION_LIST);
     
     return;
 }
@@ -351,6 +374,12 @@ void ptintf_conf(conf * conf)
    
     if (conf->CLAMAV_ARG)
         printf("CLAMAV_ARG %s %d\n", conf->CLAMAV_ARG, conf->CLAMAV_ARG_LEN);
+
+    // Nginx
+    if (conf->NGINX_LOG_FILE)
+        printf("CLAMAV_ARG %s %d\n", conf->NGINX_LOG_FILE, conf->NGINX_LOG_FILE_LEN);
+    if (conf->NGINX_REGION_LIST)
+        printf("CLAMAV_ARG %s %d\n", conf->NGINX_REGION_LIST, conf->NGINX_REGION_LIST_LEN);
 }
 
 void split_string(char string[], char delims[], char (*whitelist_ip)[WHITELIST_IP_NUM])

conf.h

@@ -43,6 +43,13 @@ typedef struct CONF
     int IPV4_RESTRICTION;
     char *IPV4_WHITE_LIST;
     int IPV4_WHITE_LIST_LEN;
+
+    // NGINX
+    int NGINX;
+    char *NGINX_LOG_FILE;
+    int NGINX_LOG_FILE_LEN;
+    char *NGINX_REGION_LIST;
+    int NGINX_REGION_LIST_LEN;
     
     int IS_MAIL;
 

disk.c

@@ -0,0 +1,59 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <mntent.h>
+#include <sys/statvfs.h>
+
+// 获取指定路径的磁盘使用率
+int get_disk_usage(const char *path, double *usage) {
+    struct statvfs stat;
+
+    if (statvfs(path, &stat) != 0) {
+        // 处理错误
+        perror("statvfs failed");
+        return -1;
+    }
+
+    // 计算磁盘使用率
+    unsigned long total_blocks = stat.f_blocks;
+    unsigned long free_blocks = stat.f_bfree;
+    unsigned long used_blocks = total_blocks - free_blocks;
+
+    *usage = (double)used_blocks / total_blocks * 100;
+    return 0;
+}
+
+int disk_usage() {
+    FILE *mounts;
+    struct mntent *ent;
+
+    mounts = setmntent("/etc/mtab", "r");
+    if (mounts == NULL) {
+        perror("setmntent failed");
+        return 1;
+    }
+
+    while ((ent = getmntent(mounts)) != NULL)
+    {
+        double usage = 0;
+        if (strstr(ent->mnt_fsname, "/dev/") != NULL)
+        {
+            //printf("%s %s %s\n", ent->mnt_fsname, ent->mnt_dir, ent->mnt_type);
+            
+            if (get_disk_usage(ent->mnt_dir, &usage) != 0) {
+                fprintf(stderr, "Failed to get disk usage for %s\n", ent->mnt_dir);
+                continue;
+            }
+            
+            int threshold = 1;
+            if (usage > threshold) {
+                printf("挂载点: %s 使用率: %.2f%% 阀值: %d%%\n", ent->mnt_dir, usage, threshold);
+
+            }
+        }
+        
+    }
+
+    endmntent(mounts);
+    return 0;
+}

disk.h

@@ -0,0 +1,12 @@
+#ifndef DISK_H
+#define DISK_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <mntent.h>
+#include <sys/statvfs.h>
+
+extern int disk_usage();
+
+#endif

libiptc.c

@@ -105,7 +105,8 @@ struct ipt_entry_match *get_match(const char *sports, const char *dports, unsign
     return match;
 }
 
-int iptc_add_rule(const char *table, const char *chain, int protocol, const char *iniface, const char *outiface, unsigned int src, unsigned int dest, const char *srcports, const char *destports, const char *target, const char *dnat_to, const int append)
+int iptc_add_rule(const char *table, const char *chain, int protocol, const char *iniface, const char *outiface, \
+    unsigned int src, unsigned int dest, const char *srcports, const char *destports, const char *target, const char *dnat_to, const int append)
 {
     struct xtc_handle *handle;
     struct ipt_entry *chain_entry;
@@ -116,6 +117,10 @@ int iptc_add_rule(const char *table, const char *chain, int protocol, const char
     int result = 0;
 
     chain_entry = (struct ipt_entry *)calloc(1, sizeof(*chain_entry));
+    if (chain_entry == NULL) {
+        perror("calloc failed");
+        return 1;
+    }
 
     if (src != 0) {
         chain_entry->ip.src.s_addr = src;
@@ -137,7 +142,8 @@ int iptc_add_rule(const char *table, const char *chain, int protocol, const char
     if (IPPROTO_TCP == protocol)
         entry_match = get_match(srcports, destports, &chain_entry->nfcache, "tcp");
 
-    if (strcmp(target, "") == 0 || strcmp(target, IPTC_LABEL_ACCEPT) == 0 || strcmp(target, IPTC_LABEL_DROP) == 0 || strcmp(target, IPTC_LABEL_QUEUE) == 0 || strcmp(target, IPTC_LABEL_RETURN) == 0) {
+    if (strcmp(target, "") == 0 || strcmp(target, IPTC_LABEL_ACCEPT) == 0 || strcmp(target, IPTC_LABEL_DROP) == 0 || \
+            strcmp(target, IPTC_LABEL_QUEUE) == 0 || strcmp(target, IPTC_LABEL_RETURN) == 0) {
         size_t size;
         size = IPT_ALIGN(sizeof(struct ipt_entry_target)) + IPT_ALIGN(sizeof(int));
         entry_target = (struct ipt_entry_target *)calloc(1, size);
@@ -192,6 +198,7 @@ int iptc_add_rule(const char *table, const char *chain, int protocol, const char
     {
         result = iptc_insert_entry(labelit, chain_entry, 0, handle);
     }
+
     
     if (!result) {
         printf("libiptc error: Can't add, %s\n", iptc_strerror(errno));

libiptc.h

@@ -30,6 +30,7 @@
 #define IPTC_FULL_SIZE IPTC_ENTRY_SIZE + IPTC_MATCH_SIZE + IPTC_TARGET_SIZE
 
 int show_all_rule(char *ipv4);
-int iptc_add_rule(const char *table, const char *chain, int protocol, const char *iniface, const char *outiface, unsigned int src, unsigned int dest, const char *srcports, const char *destports, const char *target, const char *dnat_to, const int append);
+int iptc_add_rule(const char *table, const char *chain, int protocol, const char *iniface, const char *outiface, \
+    unsigned int src, unsigned int dest, const char *srcports, const char *destports, const char *target, const char *dnat_to, const int append);
 
 #endif

libiptc/iptc_delete_rule.c

@@ -0,0 +1,275 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <netinet/in.h>
+#include <libiptc/libiptc.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#define NFC_IP_SRC_PT 0x0200
+#define NFC_IP_DST_PT 0x0400
+
+#ifndef IPT_MIN_ALIGN
+#define IPT_MIN_ALIGN (__alignof__(struct ipt_entry))
+#endif
+
+#define IPT_ALIGN(s) (((s) + ((IPT_MIN_ALIGN)-1)) & ~((IPT_MIN_ALIGN)-1))
+
+#define IPTC_ENTRY_SIZE XT_ALIGN(sizeof(struct ipt_entry))
+#define IPTC_MATCH_SIZE XT_ALIGN(sizeof(struct ipt_entry_match) + sizeof(struct ipt_udp))
+#define IPTC_TARGET_SIZE XT_ALIGN(sizeof(struct ipt_entry_target))
+#define IPTC_FULL_SIZE IPTC_ENTRY_SIZE + IPTC_MATCH_SIZE + IPTC_TARGET_SIZE
+
+#define IPTC_LABEL_ACCEPT "ACCEPT"
+#define IPTC_LABEL_DROP "DROP"
+#define IPTC_LABEL_QUEUE "QUEUE"
+#define IPTC_LABEL_RETURN "RETURN"
+
+static u_int16_t parse_port(const char *port)
+{
+    return atoi(port);
+}
+
+static void parse_ports(const char *portstring, u_int16_t *ports)
+{
+    char *buffer;
+    char *cp;
+
+    buffer = strdup(portstring);
+    if ((cp = strchr(buffer, ':')) == NULL)
+        ports[0] = ports[1] = parse_port(buffer);
+    else {
+        *cp = '\0';
+        cp++;
+
+        ports[0] = buffer[0] ? parse_port(buffer) : 0;
+        ports[1] = cp[0] ? parse_port(cp) : 0xFFFF;
+    }
+    
+    free(buffer);
+}
+
+struct ipt_entry_match *get_match(const char *sports, const char *dports, unsigned int *nfcache, const char *protocol)
+{
+    struct ipt_entry_match *match;
+    struct ipt_udp *udpinfo;
+    size_t size;
+
+    size = IPT_ALIGN(sizeof(*match)) + IPT_ALIGN(sizeof(*udpinfo));
+    match = (struct ipt_entry_match *)calloc(1, size);
+    if (!match) {
+        perror("calloc failed for match");
+        return NULL;
+    }
+
+    match->u.match_size = size;
+    strncpy(match->u.user.name, protocol, IPT_FUNCTION_MAXNAMELEN - 2);
+    match->u.user.name[IPT_FUNCTION_MAXNAMELEN - 2] = '\0';
+
+    udpinfo = (struct ipt_udp *)match->data;
+    udpinfo->spts[1] = udpinfo->dpts[1] = 0xFFFF;
+
+    if (sports) {
+        *nfcache |= NFC_IP_SRC_PT;
+        parse_ports(sports, udpinfo->spts);
+    }
+    if (dports) {
+        *nfcache |= NFC_IP_DST_PT;
+        parse_ports(dports, udpinfo->dpts);
+    }
+
+    return match;
+}
+
+// 打印 IP 地址
+void print_ip_address(const char *label, struct in_addr addr) {
+    char ip_str[INET_ADDRSTRLEN];
+    inet_ntop(AF_INET, &addr, ip_str, sizeof(ip_str));
+    printf("%s: %s\n", label, ip_str);
+}
+
+// 打印规则详细信息
+void print_rule(const char *label, const struct ipt_entry *entry) {
+    printf("%s:\n", label);
+    print_ip_address("  src", entry->ip.src);
+    print_ip_address("  dst", entry->ip.dst);
+    printf("  proto: %u\n", entry->ip.proto);
+    printf("  iniface: %s\n", entry->ip.iniface);
+    printf("  outiface: %s\n", entry->ip.outiface);
+    printf("  target_offset: %u\n", entry->target_offset);
+    printf("  next_offset: %u\n", entry->next_offset);
+    printf("  counters: pkts=%llu, bytes=%llu\n", entry->counters.pcnt, entry->counters.bcnt);
+}
+
+// 打印匹配结构详细信息
+void print_match(const char *label, const struct ipt_entry_match *match) {
+    printf("%s:\n", label);
+    printf("  match_size: %u\n", match->u.user.match_size);
+    printf("  name: %s\n", match->u.user.name);
+    printf("  revision: %u\n", match->u.user.revision);
+    // 如果有特定协议的数据，例如 TCP 或 UDP，可以在这里打印具体内容
+    // 例如：匹配 TCP 协议时，打印源端口和目标端口
+    if (strcmp(match->u.user.name, "tcp") == 0) {
+        struct ipt_tcp *tcpinfo = (struct ipt_tcp *)match->data;
+        printf("  TCP source port: %u\n", ntohs(tcpinfo->spts[0]));
+        printf("  TCP destination port: %u\n", ntohs(tcpinfo->dpts[0]));
+    } else if (strcmp(match->u.user.name, "udp") == 0) {
+        struct ipt_udp *udpinfo = (struct ipt_udp *)match->data;
+        printf("  UDP source port: %u\n", ntohs(udpinfo->spts[0]));
+        printf("  UDP destination port: %u\n", ntohs(udpinfo->dpts[0]));
+    }
+}
+
+// 打印目标结构详细信息
+void print_target(const char *label, const struct ipt_entry_target *target) {
+    printf("%s:\n", label);
+    printf("  target_size: %u\n", target->u.user.target_size);
+    printf("  name: %s\n", target->u.user.name);
+    printf("  revision: %u\n", target->u.user.revision);
+}
+
+int iptc_delete_rule(const char *table, const char *chain, int protocol, const char *iniface, const char *outiface, \
+    unsigned int src, unsigned int dest, const char *srcports, const char *destports, const char *target)
+{
+    struct xtc_handle *handle = NULL;
+    struct ipt_entry *chain_entry = NULL;
+    struct ipt_entry_match *entry_match = NULL;
+    struct ipt_entry_target *entry_target = NULL;
+    ipt_chainlabel labelit;
+    long match_size = 0;
+    int result = 1; // Default to failure
+
+    // Initialize rule entry
+    chain_entry = (struct ipt_entry *)calloc(1, sizeof(*chain_entry));
+    if (!chain_entry) {
+        perror("calloc failed");
+        return 1;
+    }
+
+    if (src != 0) {
+        chain_entry->ip.src.s_addr = src;
+        chain_entry->ip.smsk.s_addr = 0xFFFFFFFF;
+    }
+    if (dest != 0) {
+        chain_entry->ip.dst.s_addr = dest;
+        chain_entry->ip.dmsk.s_addr = 0xFFFFFFFF;
+    }
+
+    if (iniface)
+        strncpy(chain_entry->ip.iniface, iniface, IFNAMSIZ);
+    if (outiface)
+        strncpy(chain_entry->ip.outiface, outiface, IFNAMSIZ);
+
+    chain_entry->ip.proto = protocol;
+    if (IPPROTO_UDP == protocol)
+        entry_match = get_match(srcports, destports, &chain_entry->nfcache, "udp");
+    if (IPPROTO_TCP == protocol)
+        entry_match = get_match(srcports, destports, &chain_entry->nfcache, "tcp");
+    
+    print_match("entry_match", entry_match);
+
+    if (strcmp(target, "") == 0 || strcmp(target, IPTC_LABEL_ACCEPT) == 0 || strcmp(target, IPTC_LABEL_DROP) == 0 || strcmp(target, IPTC_LABEL_QUEUE) == 0 || strcmp(target, IPTC_LABEL_RETURN) == 0) {
+        size_t size;
+        size = IPT_ALIGN(sizeof(struct ipt_entry_target)) + IPT_ALIGN(sizeof(int));
+        entry_target = (struct ipt_entry_target *)calloc(1, size);
+        if (!entry_target) {
+            perror("calloc failed for target");
+            goto cleanup;
+        }
+        entry_target->u.user.target_size = size;
+        strncpy(entry_target->u.user.name, target, XT_EXTENSION_MAXNAMELEN);
+        entry_target->u.user.name[XT_EXTENSION_MAXNAMELEN - 1] = '\0';
+    }
+    match_size = entry_match ? entry_match->u.match_size : 0;
+    print_target("entry_target", entry_target);
+    
+    
+    struct ipt_entry *tmp_ipt = chain_entry;
+    chain_entry = (struct ipt_entry *)realloc(chain_entry, sizeof(*chain_entry) + match_size + entry_target->u.target_size);
+    if (!chain_entry) {
+        free(tmp_ipt);
+        free(entry_target);
+        if (entry_match) free(entry_match);
+        perror("realloc failed");
+        return 1;
+    }
+
+    memcpy(chain_entry->elems + match_size, entry_target, entry_target->u.target_size);
+    chain_entry->target_offset = sizeof(*chain_entry) + match_size;
+    chain_entry->next_offset = sizeof(*chain_entry) + match_size + entry_target->u.target_size;
+    if (entry_match) {
+        memcpy(chain_entry->elems, entry_match, match_size);
+    }
+
+    handle = iptc_init(table);
+    if (!handle) {
+        fprintf(stderr, "libiptc error: Can't initialize table %s, %s\n", table, iptc_strerror(errno));
+        goto cleanup;
+    }
+
+    strncpy(labelit, chain, sizeof(ipt_chainlabel));
+    labelit[sizeof(ipt_chainlabel) - 1] = '\0';
+    if (0 == iptc_is_chain(labelit, handle)) {
+        fprintf(stderr, "libiptc error: Chain %s does not exist!\n", labelit);
+        goto cleanup;
+    }
+    
+    // 打印 chain_entry 详细信息
+    print_rule("Chain entry", chain_entry);
+
+    // Find and delete the matching rule
+    const struct ipt_entry *entry;
+    unsigned int rule_num = 0;
+    for (entry = iptc_first_rule(labelit, handle); entry; (entry = iptc_next_rule(entry, handle), ++rule_num))
+    {
+        
+        if (entry->ip.proto == chain_entry->ip.proto &&
+            entry->ip.src.s_addr == chain_entry->ip.src.s_addr &&
+            entry->ip.dst.s_addr == chain_entry->ip.dst.s_addr &&
+                strncmp(entry->ip.iniface, chain_entry->ip.iniface, IFNAMSIZ) == 0 &&
+                strncmp(entry->ip.outiface, chain_entry->ip.outiface, IFNAMSIZ) == 0)
+        {
+            // 打印当前 entry 详细信息
+            print_rule("Current entry", entry);
+            
+            printf("Matching rule found. Deleting rule number: %u\n", rule_num);
+
+            // 删除规则
+            if (!iptc_delete_num_entry(labelit, rule_num, handle)) {
+                fprintf(stderr, "libiptc error: Can't delete entry, %s\n", iptc_strerror(errno));
+                iptc_free(handle);
+                return result;
+            }
+
+            // 提交更改
+            if (!iptc_commit(handle)) {
+                fprintf(stderr, "libiptc error: Commit error, %s\n", iptc_strerror(errno));
+            } else {
+                printf("Rule deleted successfully\n");
+                result = 0;
+                break;
+            }
+        }
+    }
+
+cleanup:
+    if (entry_match) free(entry_match);
+    if (entry_target) free(entry_target);
+    if (chain_entry) free(chain_entry);
+    if (handle) iptc_free(handle);
+
+    return result;
+}
+
+int main(int argc, char *argv[]) {
+    // Test deleting rule
+    unsigned int srcIp;
+    inet_pton(AF_INET, argv[1], &srcIp);
+
+    int result = iptc_delete_rule("filter", "INPUT", IPPROTO_TCP, NULL, NULL, srcIp, 0, NULL, NULL, IPTC_LABEL_DROP);
+
+    return result;
+}

nginx.c

@@ -0,0 +1,155 @@
+#include "nginx.h"
+
+#define EVENT_SIZE (sizeof(struct inotify_event))
+#define EVENT_BUF_LEN (1024 * (EVENT_SIZE + 16))
+#define INITIAL_BUFFER_SIZE 8192
+
+void nginx_iptc(char *ip)
+{
+    unsigned int srcIp;
+    inet_pton(AF_INET, ip, &srcIp);
+    iptc_add_rule("filter", "INPUT", IPPROTO_TCP, NULL, NULL, srcIp, 0, NULL, NULL, "DROP", NULL, 1);
+}
+
+int IP_location(char *string, conf *config)
+{
+    char *area = NULL;
+    char *xdb_path = "ip2region.xdb";
+    char *p = strchr(string, ' ');
+    char IP[64];
+    memset(IP, 0, 64);
+
+    char *t = _time();
+    char nginx_region_list[WHITELIST_IP_NUM][WHITELIST_IP_NUM] = { { 0 }, { 0 } };
+    char NGINX_REGION_LIST_COPY[config->NGINX_REGION_LIST_LEN + 1];
+
+    memset(NGINX_REGION_LIST_COPY, 0, config->NGINX_REGION_LIST_LEN + 1);
+    memcpy(NGINX_REGION_LIST_COPY, config->NGINX_REGION_LIST, config->NGINX_REGION_LIST_LEN); // 复制配置字符串，split_string()会改变原数据
+
+    split_string(NGINX_REGION_LIST_COPY, " ", nginx_region_list);
+
+    // IP 地理位置获取
+    if ((p - string) > 0) {
+        memmove(IP, string, p - string);
+    } else {
+        printf("Invalid IP string format.\n");
+        return -1;
+    }
+    if (access(xdb_path, F_OK) == -1) { // 判断 ip2region 地址定位库是否存在
+        xdb_path = "ip2region/ip2region.xdb";
+        if (access(xdb_path, F_OK) == -1) {
+            printf("ip2region.xdb DOESN'T EXIST!\n");
+            return -1;
+        }
+    }
+    area = ip2region(xdb_path, IP);
+    if (area == NULL) {
+        printf("ip2region解析地域错误\n");
+        return -1;
+    }
+
+    my_printf("IP地址:%s, %s\n", IP, area);
+    //printf("%s, %s\n", config->NGINX_LOG_FILE, config->NGINX_REGION_LIST);
+
+    if (config->NGINX == 1)                             // 开启Nginx防御
+    {
+        if (isregion(area, nginx_region_list) == 1) {   // 返回1表示在白名单列表
+            printf(RED "%s Nginx Ip Address: %s, 属于地域白名单: %s\n" COLOR_NONE, t, IP, area);
+        } else {
+            my_printf(RED "%s Nginx 封禁 Ip Address: %s, 地址: %s!!!\n" COLOR_NONE, t, IP, area);
+            nginx_iptc(IP);
+        }
+    }
+
+    return 0;
+}
+
+int nginx_read_log(const char *filename, conf *p)
+{
+    int fd = open(p->NGINX_LOG_FILE, O_RDONLY);
+    if (fd == -1) {
+        perror("open");
+
+        return -1;
+    }
+    // Move to the end of the file
+    if (lseek(fd, 0, SEEK_END) == -1) {
+        perror("lseek");
+        close(fd);
+        return -1;
+    }
+
+    int inotify_fd = inotify_init();
+    if (inotify_fd < 0) {
+        perror("inotify_init");
+        close(fd);
+        return -1;
+    }
+
+    int wd = inotify_add_watch(inotify_fd, p->NGINX_LOG_FILE, IN_MODIFY);
+    if (wd == -1) {
+        perror("inotify_add_watch");
+        close(inotify_fd);
+        close(fd);
+        return -1;
+    }
+
+    char buffer[EVENT_BUF_LEN];
+
+    // Set the file descriptor to non-blocking mode
+    int flags = fcntl(fd, F_GETFL, 0);
+    if (flags == -1) {
+        perror("fcntl F_GETFL");
+        inotify_rm_watch(inotify_fd, wd);
+        close(inotify_fd);
+        close(fd);
+        return -1;
+    }
+    if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1) {
+        perror("fcntl F_SETFL");
+        inotify_rm_watch(inotify_fd, wd);
+        close(inotify_fd);
+        close(fd);
+        return -1;
+    }
+    // Initial dynamic buffer allocation
+    size_t buffer_size = INITIAL_BUFFER_SIZE;
+    char *read_buf = alloca(buffer_size);
+    if (!read_buf) {
+        perror("alloca");
+        inotify_rm_watch(inotify_fd, wd);
+        close(inotify_fd);
+        close(fd);
+        return -1;
+    }
+
+    while (1) {
+        int length = read(inotify_fd, buffer, EVENT_BUF_LEN);
+        if (length < 0) {
+            perror("read");
+            break;
+        }
+
+        for (int i = 0; i < length;) {
+            struct inotify_event *event = (struct inotify_event *)&buffer[i];
+            if (event->mask & IN_MODIFY) {
+                int bytes_read;
+                while ((bytes_read = read(fd, read_buf, buffer_size - 1)) > 0) {
+                    read_buf[bytes_read] = '\0';
+                    IP_location(read_buf, p);
+                }
+                if (bytes_read == -1 && errno != EAGAIN) {
+                    perror("read");
+                    break;
+                }
+            }
+            i += EVENT_SIZE + event->len;
+        }
+    }
+
+    inotify_rm_watch(inotify_fd, wd);
+    close(inotify_fd);
+    close(fd);
+
+    return 0;
+}

nginx.h

@@ -0,0 +1,19 @@
+#ifndef NGINX_H
+#define NGINX_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/inotify.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include "rhost.h"
+#include "libiptc.h"
+#include "ip2region/ip2region.h" 
+
+
+extern int nginx_read_log(const char *filename, conf * conf);
+
+#endif

rhost.conf

@@ -3,8 +3,10 @@ global {
     DAEMON = "off";                         // on开启后台运行,off不开启(弃用)
     TIME = "10";                            // 睡眠时间(大于等于1,单位秒)
     
+
     PUBLIC_IP = "http://inet-ip.info";      // 获取公网IP
     
+
     IS_DISK = 1;                            // 磁盘使用率(1开启,非1关闭)
     DISK_USE = 95;                          // 任意某块磁盘使用率告警(大于等于1)
     
@@ -12,9 +14,10 @@ global {
     IS_BLOCKED = 1;                         // 是否封禁攻击IP(1开启,非1关闭)
     REFUSE_NUMBER = 3;                      // 拒绝攻击次数
     
+
     CLAMAV = 1;                             // clamav 是否扫描病毒(1开启,非1关闭)
-    CLAMAV_ARG = "-r / --exclude-dir=^/sys|^/dev|^/proc|^/opt/infected  --move=/opt/infected --max-filesize 1024M -l clamscan.log";
+    CLAMAV_ARG = "-r / --exclude-dir=^/sys|^/dev|^/proc|^/opt/infected|^/root|^/home|^/mnt|^/usr|^/var  --move=/opt/infected --max-filesize 1024M -l clamscan.log";
-    CLAMAV_TIME = "* 7 23 * * *";          // clamav 扫描时间(Cron格式, 秒 分 时 天 月 周)
+    CLAMAV_TIME = "* 45 11 * * *";          // clamav 扫描时间(Cron格式, 秒 分 时 天 月 周)
     
     
     IPV4_RESTRICTION = 1;                   // 是否启用IP白名单(1开启,非1关闭)
@@ -23,18 +26,22 @@ global {
     
     REGION = 1;                             // 是否启用地域白名单(1开启,非1关闭)
     IP2REGION = 1;                          // 是否使用本地 ip2region 地址定位库(1使用,非1不使用)
-    REGION_URL = "http://opendata.baidu.com/api.php?query=%s&co=&resource_id=6006&oe=utf8";       // 获取IP地域API
     REGION_LIST = "河南 郑州 上海";         // 地域列表(空格隔开)
+
+
+    NGINX = 1;                                          // 是否启用Nginx白名单
+    NGINX_LOG_FILE= "/usr/local/nginx/logs/access.log"; // Nginx 日志文件
+    NGINX_REGION_LIST = "中国 河南 郑州 上海";          // 地域列表(空格隔开)
     
     
     IS_MAIL = 0;                            // 开启邮件告警(1开启,非1关闭)
     
     
-    IS_DING_WEBHOOK = 0;                    // 开启叮叮告警(1开启,非1关闭)
+    IS_DING_WEBHOOK = 1;                    // 开启叮叮告警(1开启,非1关闭)
     PHONE = "15565979082";                  // @的人手机号
-    DING_WEBHOOK = "https://oapi.dingtalk.com/robot/send?access_token=7f069c672cb878987aa6772cca336740eece4ce36bde12b51b45e9f440e0565a";        // 钉钉WEBHOOK
+    DING_WEBHOOK = "https://oapi.dingtalk.com/robot/send?access_token=396bce0384cded025087cff3c176ea5e9afb9bd8fcaa46d6fa8c51dd172ba513";        // 钉钉WEBHOOK
 
 
-    IS_QQMAIL = 1;                          // 开启QQ邮箱告警(默认使用gomail：https://git.aixiao.me/aixiao/gomail.git)(1开启,非1关闭)
+    IS_QQMAIL = 1;                          // 开启QQ邮箱告警(默认使用gomail: https://git.aixiao.me/aixiao/gomail.git)(1开启,非1关闭)
     RECV_MAIL = "1605227279@qq.com";        // 接收者邮箱
 }

rhost.h

@@ -12,13 +12,12 @@
 #include <curl/curl.h>
 #include <sys/types.h>
 #include <arpa/inet.h>
-#include <time.h>
-#include <sys/types.h>
-#include <sys/wait.h>
 #include <assert.h>
+#include <limits.h>
+#include <stdarg.h>
 
-#include "./cJSON/cJSON.h"
+
-#include "ip2region/ip2region.h"
+#include "conf.h"
 
 
 typedef struct now_next_time
@@ -42,51 +41,6 @@ typedef struct now_next_time
 
 
 
-#include <assert.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <limits.h>
-
-#include "ccronexpr.h"
-
-#define MAX_SECONDS 60
-#define CRON_MAX_MINUTES 60
-#define CRON_MAX_HOURS 24
-#define CRON_MAX_DAYS_OF_WEEK 8
-#define CRON_MAX_DAYS_OF_MONTH 32
-#define CRON_MAX_MONTHS 12
-
-#define INVALID_INSTANT ((time_t) -1)
-
-#define DATE_FORMAT "%Y-%m-%d_%H:%M:%S"
-
-#ifndef ARRAY_LEN
-#define ARRAY_LEN(x) sizeof(x)/sizeof(x[0])
-#endif
-
-#ifdef CRON_TEST_MALLOC
-static int cronAllocations = 0;
-static int cronTotalAllocations = 0;
-static int maxAlloc = 0;
-void* cron_malloc(size_t n)
-{
-    cronAllocations++;
-    cronTotalAllocations++;
-    if (cronAllocations > maxAlloc)
-    {
-        maxAlloc = cronAllocations;
-    }
-    return malloc(n);
-}
-
-void cron_free(void* p)
-{
-    cronAllocations--;
-    free(p);
-}
-#endif
-
 
 
 #define COLOR_NONE "\033[0m" //表示清除前面设置的格式
@@ -107,9 +61,7 @@ void cron_free(void* p)
 #define BUILD(fmt...)  do { fprintf(stderr,"%s %s ",__DATE__,__TIME__); fprintf(stderr, ##fmt); } while(0)
 
 #define AWK " | awk -v num=%d '{a[$1]+=1;} END {for(i in a){if (a[i] >= num) {print i;}}}' "
-
 #define GE_10 "grep -E \"^$(LC_ALL=\"C\" date \"+%h\").$(LC_ALL=\"C\" date \"+%d\")\" /var/log/auth.log | grep failure | grep rhost"
-#define GE_12 "grep -E \"^$(LC_ALL=\"C\" date +\"%Y-%m-%d\")\" /var/log/auth.log | grep failure | grep rhost"
 #define LE_10 "grep -E \"^$(LC_ALL=\"C\" date \"+%h\")..$(LC_ALL=\"C\" date | awk '{print $3}')\" /var/log/auth.log | grep failure | grep rhost"
 
 #define CENTOS_GE_10 "grep -E \"^$(LC_ALL=\"C\" date \"+%h\").$(LC_ALL=\"C\" date \"+%d\")\" /var/log/secure | grep failure | grep rhost"
@@ -120,10 +72,14 @@ void cron_free(void* p)
 #define QQMAIL_Virus "gomail -r %s -s \"System Virus Infected\" -t \"%s\""
 #define QQMAIL_DISK_USE "gomail -r %s -s \"System Disk Use\" -t \"%s\""
 
+#define LOG_FILE "nginx.log"
 
 
 extern void read_conf(char *filename, conf * configure);
 extern void free_conf(conf * conf);
 extern void ptintf_conf(conf * conf);
+extern void my_printf(const char *format, ...);
+extern char *_time();
+extern int isregion(char *str, char (*region_list)[WHITELIST_IP_NUM]);
 
 #endif