secgateway/Platform/user/configm/config-server/agingtime_config/agingtime.c

#include "../include/parsefile.h"
#include "../include/configm.h"
#include "../../../netlink_uapi/libnetlinku.h"
#include "../../../../common/rpc/rpc.h"
#include "../include/agingtime.h"
#include <cjson/cJSON.h>
#include "../../../../../Common/s2j/s2j.h"
#include "../../../../../Common/commuapinl.h"

#ifdef AGINGTIME_ACK_COOKIES
#define CFG_AGINGTIME_ACK_COOKIES
#endif

/*全局变量,存放配置的用户老化时间 */
int *aging_time = NULL;

/*下发用户老化时间配置到内核态 */ 
int set_agingtimecfg_waitack(int *agingtime)
{
    int agingtime_len = 0;
    struct nlmsghdr *ack = NULL;
    struct nlmsghdr **answer = &ack;
    
    struct{
        struct nlmsghdr n;
        char buf[1024];
    } req ={
        .n.nlmsg_len = NLMSG_LENGTH(0),
#ifdef CFG_AGINGTIME_ACK_COOKIES
        .n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,/*set NLM_F_ACK：use kernel auto ack*/
#else
        .n.nlmsg_flags = NLM_F_REQUEST, /*not use kernel auto ack */
#endif
        .n.nlmsg_type = AGINGTIME_CFG,  /*用户态发送给内核态的用户老化时间消息 */
        .n.nlmsg_pid = getpid(),
};

/*判断要发送的数据是否为NULL,不为NULL,打印出来 */
if (agingtime == NULL)
{
    printf("set_agingtimecfg_waitack is error: input struct_agingtime is NULL.\r\n");
    return -1;
}else
{   
    printf("set_freeauthcfg_waitack :agingtime %d\n", *agingtime);
}
    
    /*计算需要发送的数据的长度 */
    agingtime_len = sizeof(int);
    printf("%d\n", agingtime_len);

    /*可选属性 */
    commnl_addattr_l(&req.n, sizeof(req), 1, agingtime, agingtime_len);
	
    /*发送组装好的netlink消息 */
    if(pdeliv_talk(1, &req.n, answer) < 0)
    {
        printf("set_user_agingtime_waitack rcv ack msg faild.\r\n");
        return -2;
    }
    else
    {
        printf("set_user_agingtime_waitack rcv ack msg success.\r\n");
    }
    
	if(*answer != NULL)
		{
		printf("set_user_agingtime_waitack rcv answer.\r\n");	
		}
	else{
		printf("set_user_agingtime_waitack rcv answer error.\r\n");
		return -3;
	}

#ifdef CFG_AGINGTIME_ACK_COOKIES
	/*recv answer*/
	if((*answer)->nlmsg_type == NLMSG_ERROR){
	nl_debugfs_extack(*answer);	
	}
#else
	/*recv answer*/
	if((*answer)->nlmsg_type == AGINGTIME_CFG)
	{
		nl_debugfs(*answer);
	}
#endif

return 0;
}


/*判断配置的老化时间是否有效，老化时间大于0 */
/*input格式 '{\"type\":0, \"time\":24}' */
ret_code agingtime_config_chk(uint source, uint *config_type,
                        pointer input, int *input_len,
                        pointer output, int *output_len)
{
    ret_code ret = RET_OK;
    cJSON *cjson,*time;
    
    /*JSON字符串到JSON格式 */
    cjson = cJSON_Parse(input);
    if(!cjson)
    {
        ret = RET_INPUTERR;
        ASSERT_RET(ret);
        return ret;
    }

    /*获取键值内容 */
    time = cJSON_GetObjectItem(cjson , "time"); 
    if(!time)
    {
        cJSON_Delete(cjson);
        ret = RET_INPUTERR;
        ASSERT_RET(ret);
        return ret;
    }

    if(time->valueint < 0)
    {
        cJSON_Delete(cjson);
        free(time);
        ret = RET_ERR;
        ASSERT_RET(ret);
        return ret;
    }

    cJSON_Delete(cjson);
    free(time);

    ASSERT_RET(ret);
    return RET_OK;  
}


/*系统管理模块将配置的用户老化时间通过netlink下发到内核态 */
/*输入和输出的参数形式都为JSON字符串 '{"time": 30}' */
ret_code agingtime_config_proc(uint source, uint config_type,
                        pointer input, int input_len,
                        pointer output, int *output_len)
{
    ret_code ret = RET_OK; 
    cJSON *cjson, *res, *time;
    int * agingtime = NULL;
    char * ret_char = NULL;
    unsigned int ret_int = 0;

    /*JSON字符串到JSON格式 */
    cjson = cJSON_Parse(input);
    if(!cjson)
    {
        ret = RET_INPUTERR;
        ASSERT_RET(ret);
        return ret;
    }

    /*获取键值内容 */
    time = cJSON_GetObjectItem(cjson , "time"); 
    if(!time)
    {
        cJSON_Delete(cjson);
        ret = RET_INPUTERR;
        ASSERT_RET(ret);  
        return ret;
    }
    else
    {   
        int a = time->valueint;
        agingtime = &a;
    }
    
    rpc_log_info("agingtime configure:  agingtime %d\n", *agingtime);

    /*用户态下发到内核态auth_hook */
    int r = -1;
    printf("cfgchannel main begin:\r\n");

    /*创建通道 */
    r = commcfgnl_open();
    if(r < 0)
    {
        printf(" pdlivnl_open fail, exit.\r\n");
        cJSON_Delete(cjson);
        free(time);
        return RET_ERR;
    }

    /*下发配置到内核态 */
    r = set_agingtimecfg_waitack(agingtime);
    if(r < 0)
    {
        printf("set_cfg_debug_waitack failed.\r\n");
        cJSON_Delete(cjson);
        free(time);
        return RET_ERR;
    }

    /*关闭netlink通道 */    
    commcfgnl_close();

    printf("cfgchannel main exit!\r\n");
    

    /*创建json对象 */
    res = cJSON_CreateObject();
    if(!res)
    {
        ret = RET_ERR;
        ASSERT_RET(ret);
        return ret;
    }

    cJSON_AddNumberToObject(res, "result", r); 

    /*将json对象转换成json字符串 */
    ret_char = cJSON_PrintUnformatted(res); 
    ret_int = strlen(ret_char);

    if(output_len)
    {
        *output_len = ret_int;
    }
    
    /*超出2k的内存，报错 */
    if(ret_int >= 1024 * 2)
    {
        free(time);
        cJSON_Delete(cjson);
        free(ret_char);
        cJSON_Delete(res);
        return RET_NOMEM;
    }

    memcpy(output, 0, ret_int + 1);
    strcpy(output, ret_char);

    free(ret_char);
    cJSON_Delete(res);
    cJSON_Delete(cjson);
    free(time);


    /*把免认证规则的配置信息存入全局变量 */
    *aging_time= *agingtime;

    free(aging_time);
    return RET_OK;  
}

ret_code agingtime_config_get(uint source, 
                        pointer input, int input_len,
                        pointer output, int *output_len)
{
    ret_code ret = RET_OK; 
    return ret;
}

ret_code agingtime_config_get_all(uint source, 
                                  pointer output, int *output_len)
{
    ret_code ret = RET_OK; 
    return ret;
}