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Merge branch 'libuv_dhcpd_dev' of http://git.komect.net/ZNJK/vcpe into libuv_dhcpd_dev

This commit is contained in:
dongwenze 2023-05-04 16:49:01 +08:00
parent ff45ebd5d4 85b6b108df
commit d043185666
11 changed files with 630 additions and 99 deletions
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4
dhcp_tools/detail_wnd.c
View File

@ -107,11 +107,11 @@ static void add_dhcp_tree_colums(GtkWidget *treeView) {
gtk_tree_store_set(store, &iterSub, 0, (name), 1, (s), -1); \ gtk_tree_store_set(store, &iterSub, 0, (name), 1, (s), -1); \
} while (0) } while (0)
#define ADD_SUB_INT(name, fmt, v) \ #define ADD_SUB_INT(name, fmt, v) \
do { \ do { \
gtk_tree_store_append(store, &iterSub, &iter); \ gtk_tree_store_append(store, &iterSub, &iter); \
s = sdsempty(); \ s = sdsempty(); \
sprintf(s, (fmt), (v)); \ sprintf(s, (fmt), (v)); \
gtk_tree_store_set(store, &iterSub, 0, (name), 1, s, -1); \ gtk_tree_store_set(store, &iterSub, 0, (name), 1, s, -1); \
sdsfree(s); \ sdsfree(s); \
} while (0) } while (0)

1
dhcp_tools/main.h
View File

@ -78,6 +78,7 @@ int dhcp_tools_init_network(const char *pNicName);
U8 *dhcp_create_discover_req(PDHCP_INFO pInfo, int *pOutSize); U8 *dhcp_create_discover_req(PDHCP_INFO pInfo, int *pOutSize);
U8 *dhcp_create_request_req(PDHCP_INFO pInfo, int *pOutSize); U8 *dhcp_create_request_req(PDHCP_INFO pInfo, int *pOutSize);
int cacheDhcpOfferBuffer(PDHCP_INFO pInfo, U8 *pBuf, int size); int cacheDhcpOfferBuffer(PDHCP_INFO pInfo, U8 *pBuf, int size);
int cacheDhcpAckBuffer(PDHCP_INFO pInfo, U8 *pBuf, int size);
void details_wnd_create(GtkBuilder *builder); void details_wnd_create(GtkBuilder *builder);
void details_wnd_show(PDHCP_INFO pInfo); void details_wnd_show(PDHCP_INFO pInfo);
#endif //VCPE_MAIN_H #endif //VCPE_MAIN_H

11
dhcp_tools/main_wnd.c
View File

@ -316,6 +316,17 @@ int cacheDhcpOfferBuffer(PDHCP_INFO pInfo, U8 *pBuf, int size) {
return -ERR_MALLOC_MEMORY; return -ERR_MALLOC_MEMORY;
} }
int cacheDhcpAckBuffer(PDHCP_INFO pInfo, U8 *pBuf, int size) {
pInfo->pAckBuf.p = (U8 *)malloc(size);
if (pInfo->pAckBuf.p) {
memcpy(pInfo->pAckBuf.p, pBuf, size);
pInfo->pAckBuf.buf_size = size;
return ERR_SUCCESS;
}
return -ERR_MALLOC_MEMORY;
}
_Noreturn static void *dhcpThreadCb(void *pData) { _Noreturn static void *dhcpThreadCb(void *pData) {
U8 *pkg; U8 *pkg;
int size = 0; int size = 0;

6
dhcp_tools/uv_rawsocket.c
View File

@ -2,7 +2,6 @@
// Created by xajhuang on 2023/4/20. // Created by xajhuang on 2023/4/20.
// //
#include <uv.h> #include <uv.h>
#include <linux/filter.h>
#include <string.h> #include <string.h>
#include "user_errno.h" #include "user_errno.h"
#include "dhcp_network.h" #include "dhcp_network.h"
@ -233,6 +232,11 @@ static void on_dhcp_recv(uv_work_t *req) {
memcpy(&pInfo->offerRsp, &rspDhcp, sizeof(DHCP_RSP)); memcpy(&pInfo->offerRsp, &rspDhcp, sizeof(DHCP_RSP));
break; break;
case DHCP_MSG_ACK: case DHCP_MSG_ACK:
pInfo->step = STEP_ACK;
pInfo->status = STA_RECV_RSP;
cacheDhcpAckBuffer(pInfo, pWork->pPkgBase, pWork->nSize);
memcpy(&pInfo->ackRsp, &rspDhcp, sizeof(DHCP_RSP));
break; break;
case DHCP_MSG_NAK: case DHCP_MSG_NAK:
break; break;

4
srcs/libs/misc/err.c
View File

@ -12,6 +12,10 @@ static const char *g_enumStrVal[][MAX_DESC_LENGTH] = {
}; };
const char *getErrorEnumNameString(int errCode) { const char *getErrorEnumNameString(int errCode) {
if (errCode < 0) {
errCode = -errCode;
}
if (errCode >= ARRAY_SIZE(g_enumStrVal) || errCode < 0) { if (errCode >= ARRAY_SIZE(g_enumStrVal) || errCode < 0) {
return g_enumStrVal[ARRAY_SIZE(g_enumStrVal) - 1][0]; return g_enumStrVal[ARRAY_SIZE(g_enumStrVal) - 1][0];
} }

367
srcs/service/dhcpd/db_interface.c
View File

@ -14,25 +14,26 @@
#include "lease.h" #include "lease.h"
// 10小时以上清理无效的预分配IP // 10小时以上清理无效的预分配IP
#define DCHP_STEP_TIMEOUT (36000) #define DCHP_STEP_CLEANUP_TIMEOUT (36000)
// Discover 预分配IP 和Request 请求间的超时时间
#define DCHP_STEP_REQUEST_TIMEOUT (600000)
#define CREATE_LEASE_TABLE() \ #define CREATE_LEASE_TABLE() \
"CREATE TABLE IF NOT EXISTS lease " \ "CREATE TABLE IF NOT EXISTS lease " \
" ( id INTEGER PRIMARY KEY AUTOINCREMENT," \ " ( id INTEGER PRIMARY KEY AUTOINCREMENT," \
" uid INTEGER NOT NULL," \ " uid INTEGER NOT NULL," \
" mac CHAR(20) NOT NULL," \ " mac CHAR(20) NOT NULL," \
" ip INTEGER NOT NULL," \ " ip INTEGER NOT NULL," \
" lease INTEGER NOT NULL," \ " lease INTEGER NOT NULL," \
" createTm INTEGER NOT NULL," \ " netmask INTEGER," \
" netmask INTEGER," \ " gateway INTEGER," \
" gateway INTEGER," \ " dns1 INTEGER," \
" dns1 INTEGER," \ " dns2 INTEGER," \
" dns2 INTEGER," \ " server INTEGER NOT NULL," \
" server INTEGER NOT NULL," \ " hostname CHAR(64) DEFAULT '' NOT NULL," \
" hostname CHAR(64) DEFAULT '' NOT NULL," \ " createTm TIMESTAMP DEFAULT (datetime('now', 'localtime')) NOT NULL" \
" keyType INTEGER NOT NULL" \ ");" \
");" \ "CREATE INDEX IF NOT EXISTS " \
"CREATE INDEX IF NOT EXISTS " \
"lease_index ON lease (uid, mac);" "lease_index ON lease (uid, mac);"
#define CREATE_PRE_ASSIGN_TABLE() \ #define CREATE_PRE_ASSIGN_TABLE() \
@ -59,6 +60,11 @@
#define GET_PRE_ASSIGN_EXISTS_ROW_FMT \ #define GET_PRE_ASSIGN_EXISTS_ROW_FMT \
"SELECT ip, id FROM pre_assign WHERE mac = '%s' AND hostname = '%s' AND uid = %d ORDER BY createTm DESC LIMIT 1;" "SELECT ip, id FROM pre_assign WHERE mac = '%s' AND hostname = '%s' AND uid = %d ORDER BY createTm DESC LIMIT 1;"
#define GET_ASSIGN_IP_INFO_FMT \
"SELECT id, ip, lease, netmask, gateway, dns1, dns2 FROM pre_assign WHERE mac = '%s' AND hostname = '%s' AND " \
"uid = %d AND server = '%s' AND (strftime('%%s', 'now', 'localtime') - strftime('%%s', createTm)) < " \
"%d ORDER BY createTm DESC LIMIT 1;"
#define IP_IS_PRE_ASSIGN_NOT_TIMEOUT_FMT \ #define IP_IS_PRE_ASSIGN_NOT_TIMEOUT_FMT \
"SELECT (strftime('%%s', 'now', 'localtime') - strftime('%%s', createTm)) as tm FROM pre_assign WHERE ip = " \ "SELECT (strftime('%%s', 'now', 'localtime') - strftime('%%s', createTm)) as tm FROM pre_assign WHERE ip = " \
"'%s' AND tm < %d AND uid = %d ORDER BY tm DESC LIMIT 1;" "'%s' AND tm < %d AND uid = %d ORDER BY tm DESC LIMIT 1;"
@ -73,17 +79,128 @@
"SELECT ip, uid FROM pre_assign WHERE (strftime('%%s', 'now', 'localtime') - strftime('%%s', createTm)) < %d;" "SELECT ip, uid FROM pre_assign WHERE (strftime('%%s', 'now', 'localtime') - strftime('%%s', createTm)) < %d;"
#define CLS_TIMEOUT_PRE_ASSIGN_ROW_FMT \ #define CLS_TIMEOUT_PRE_ASSIGN_ROW_FMT \
"DELETE FROM pre_assign WHERE (strftime('%%s', 'now', 'localtime') - - strftime('%%s', createTm)) > %d" "DELETE FROM pre_assign WHERE (strftime('%%s', 'now', 'localtime') - strftime('%%s', createTm)) > %d;"
#define UPDATE_CREATE_TIME_BY_ID_FMT "UPDATE pre_assign SET createTm = datetime('now', 'localtime') WHERE id = %s" #define UPDATE_CREATE_TIME_BY_ID_FMT "UPDATE pre_assign SET createTm = datetime('now', 'localtime') WHERE id = %s"
#define INSERT_LEASE_FMT \
"INSERT INTO lease(uid, hostname, mac, ip, lease, netmask, gateway, dns1, dns2, server) " \
"VALUES (%d, '%s', '%s', '%s', %d, '%s', '%s', '%s', '%s', '%s');"
#define LEASE_FIND_ITEM_FMT \
"SELECT id FROM lease WHERE mac = '%s' AND hostname = '%s' AND uid = %d AND ip = '%s' ORDER BY createTm DESC " \
"LIMIT 1;"
#define LEASE_ITEM_UPDATE_FMT \
"UPDATE lease SET lease = %d, netmask = '%s', gateway = '%s', dns1 = '%s', dns2 = '%s', server = '%s', " \
"createTm = datetime('now', 'localtime') WHERE id = %s;"
#define CLS_TIMEOUT_LEASE_ROW_FMT \
"DELETE FROM lease WHERE (strftime('%%s', 'now', 'localtime') - - strftime('%%s', createTm)) > lease.lease"
#define GET_LEASE_ROW_FMT \
"SELECT ip, uid FROM lease WHERE (strftime('%%s', 'now', 'localtime') - strftime('%%s', createTm)) < lease.lease;"
#define GET_LEASE_EXISTS_ROW_FMT \
"SELECT ip, id FROM lease WHERE mac = '%s' AND hostname = '%s' AND uid = %d AND (strftime('%%s', 'now', " \
"'localtime') - strftime('%%s', createTm)) < lease.lease ORDER BY createTm DESC LIMIT 1;"
#define GET_LEASE_INFO_FMT \
"SELECT id, ip, lease, netmask, gateway, dns1, dns2 FROM lease WHERE mac = '%s' AND hostname = '%s' AND " \
"uid = %d AND server = '%s' AND (strftime('%%s', 'now','localtime') - strftime('%%s', createTm)) < lease.lease " \
"ORDER BY createTm DESC LIMIT 1;"
#define UPDATE_LEASE_TIME_BY_ID_FMT "UPDATE lease SET createTm = datetime('now', 'localtime') WHERE id = %llu"
#define LEASE_RELEASE_FMT "DELETE FROM lease WHERE uid = %d AND mac = '%s' AND ip = '%s'"
static int lease_add(PDHCP_REQ pReq,
const char *ip,
const char *netmask,
const char *gw,
const char *dns1,
const char *dns2,
U32 leaseTime) {
int rc;
char buf[2048] = {0};
char macStr[20] = {0};
char **dbResult;
int nRow = 0, nColumn = 0;
MAC_TO_STR(pReq->cliMac, macStr);
snprintf(buf, 2048, LEASE_FIND_ITEM_FMT, macStr, pReq->hostName, pReq->uid, ip);
rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL);
if (rc == ERR_SUCCESS) {
// 已经存在，则更新
if (nRow > 0 && nColumn > 0) {
memset(buf, 0, 2048);
snprintf(buf, 2048, LEASE_ITEM_UPDATE_FMT, leaseTime, netmask, gw, dns1, dns2,
u32_to_str_ip(pReq->serverAddr), dbResult[nColumn]);
rc = db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
if (rc != ERR_SUCCESS) {
LOG_MOD(error, ZM_DHCP_DB, "Add upgrade to lease db error: id = %s\n", dbResult[nColumn]);
}
} else {
//添加一个新的
// 记录设备分配的DHCP信息到数据库
memset(buf, 0, 2048);
snprintf(buf, 2048, INSERT_LEASE_FMT, pReq->uid, pReq->hostName, macStr, ip, leaseTime, netmask, gw, dns1,
dns2, u32_to_str_ip(pReq->serverAddr));
rc = db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
if (rc != ERR_SUCCESS) {
LOG_MOD(error, ZM_DHCP_DB, "Add date to lease db error\n");
}
}
}
sqlite3_free_table(dbResult);
return ERR_SUCCESS;
}
int db_add_lease(PDHCP_REQ pReq, PPOOL_CTX pCtx) {
const char *pNetmask = u32_to_str_ip_safe(htonl(pCtx->netMask));
const char *pGateway = u32_to_str_ip_safe(htonl(pCtx->gwAddr));
const char *pDns1 = u32_to_str_ip_safe(htonl(pCtx->primeDNS));
const char *pDns2 = u32_to_str_ip_safe(htonl(pCtx->salveDNS));
const char *pIp = u32_to_str_ip_safe(htonl(pReq->cliAddr));
// 添加租约信息到lease数据库
lease_add(pReq, pIp, pNetmask, pGateway, pDns1, pDns2, pCtx->leaseTime);
free((void *)pNetmask);
free((void *)pGateway);
free((void *)pDns1);
free((void *)pDns2);
free((void *)pIp);
return ERR_SUCCESS;
}
int db_release_lease(PDHCP_REQ pReq) {
int rc;
char buf[1024] = {0};
char macStr[20] = {0};
MAC_TO_STR(pReq->cliMac, macStr);
snprintf(buf, 1024, LEASE_RELEASE_FMT, pReq->uid, macStr, u32_to_str_ip(htonl(pReq->reqIpAddr)));
rc = db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
if (rc != ERR_SUCCESS) {
LOG_MOD(error, ZM_DHCP_DB, "DB remove lease item error: %s\n", buf);
}
return ERR_SUCCESS;
}
int lease_lock_pre_assign_ip() { int lease_lock_pre_assign_ip() {
int rc; int rc;
char buf[1024] = {0}; char buf[1024] = {0};
char **dbResult; char **dbResult;
int nRow = 0, nColumn = 0; int nRow = 0, nColumn = 0;
snprintf(buf, 1024, GET_PRE_ASSIGN_ROW_FMT, DCHP_STEP_TIMEOUT); snprintf(buf, 1024, GET_PRE_ASSIGN_ROW_FMT, DCHP_STEP_CLEANUP_TIMEOUT);
rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL); rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL);
if (rc == ERR_SUCCESS && nRow > 0 && nColumn > 0) { if (rc == ERR_SUCCESS && nRow > 0 && nColumn > 0) {
@ -102,19 +219,45 @@ int lease_lock_pre_assign_ip() {
} }
sqlite3_free_table(dbResult); sqlite3_free_table(dbResult);
memset(buf, 0, 1024);
snprintf(buf, 1024, GET_LEASE_ROW_FMT);
rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL);
if (rc == ERR_SUCCESS && nRow > 0 && nColumn > 0) {
int i;
for (i = 1; i <= nRow; i++) {
U32 uid = strtoul(dbResult[i * nColumn + 1], NULL, 10);
U32 ip = ntohl(inet_addr(dbResult[i * nColumn]));
PDHCP_USER pUser = dhcp_user_create(uid);
if (pUser) {
usr_lease_lock_ip(pUser, ip);
LOG_MOD(debug, ZM_DHCP_DB, "Lock prepare assign ip %s for user %u\n", dbResult[i * nColumn], uid);
}
}
}
sqlite3_free_table(dbResult);
return ERR_SUCCESS; return ERR_SUCCESS;
} }
int lease_clearup_timeout_pre_assign() { int lease_clearup_timeout_items() {
int rc; int rc;
char buf[1024] = {0}; char buf[1024] = {0};
snprintf(buf, 1024, CLS_TIMEOUT_PRE_ASSIGN_ROW_FMT, DCHP_STEP_TIMEOUT); snprintf(buf, 1024, CLS_TIMEOUT_PRE_ASSIGN_ROW_FMT, DCHP_STEP_CLEANUP_TIMEOUT);
rc = db_sqlite3_sql_exec(CREATE_LEASE_TABLE(), NULL, NULL, NULL); rc = db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
LOG_MOD(trace, ZM_DHCP_DB, "Cleanup pre_assign database timeout(%u seconds) data\n", DCHP_STEP_CLEANUP_TIMEOUT);
if (rc != ERR_SUCCESS) { if (rc != ERR_SUCCESS) {
return rc; LOG_MOD(error, ZM_DHCP_DB, "Cleanup pre_assign database error: %s\n", buf);
}
rc = db_sqlite3_sql_exec(CLS_TIMEOUT_LEASE_ROW_FMT, NULL, NULL, NULL);
LOG_MOD(trace, ZM_DHCP_DB, "Cleanup assign database lease expire data\n");
if (rc != ERR_SUCCESS) {
LOG_MOD(error, ZM_DHCP_DB, "Cleanup lease database error: %s\n", buf);
} }
return ERR_SUCCESS; return ERR_SUCCESS;
@ -138,7 +281,7 @@ int lease_ip_is_pre_assign(U32 uid, U32 ip) {
// 判断数据库中该IP是否未超时 // 判断数据库中该IP是否未超时
memset(buf, 0, 1024); memset(buf, 0, 1024);
snprintf(buf, 1024, IP_IS_PRE_ASSIGN_NOT_TIMEOUT_FMT, u32_to_str_ip(htonl(ip)), DCHP_STEP_TIMEOUT, uid); snprintf(buf, 1024, IP_IS_PRE_ASSIGN_NOT_TIMEOUT_FMT, u32_to_str_ip(htonl(ip)), DCHP_STEP_CLEANUP_TIMEOUT, uid);
rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL); rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL);
sqlite3_free_table(dbResult); sqlite3_free_table(dbResult);
@ -150,7 +293,7 @@ int lease_ip_is_pre_assign(U32 uid, U32 ip) {
// 判断是否有超时预分配的IP， 存在的话可以预分配给其它请求 // 判断是否有超时预分配的IP， 存在的话可以预分配给其它请求
memset(buf, 0, 1024); memset(buf, 0, 1024);
snprintf(buf, 1024, IP_IS_PRE_ASSIGN_TIMEOUT_FMT, u32_to_str_ip(htonl(ip)), DCHP_STEP_TIMEOUT, uid); snprintf(buf, 1024, IP_IS_PRE_ASSIGN_TIMEOUT_FMT, u32_to_str_ip(htonl(ip)), DCHP_STEP_CLEANUP_TIMEOUT, uid);
rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL); rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL);
if (rc == ERR_SUCCESS && nRow > 0 && nColumn > 0) { if (rc == ERR_SUCCESS && nRow > 0 && nColumn > 0) {
// 清理超时资源并预分配 // 清理超时资源并预分配
@ -169,6 +312,155 @@ int lease_ip_is_pre_assign(U32 uid, U32 ip) {
return TRUE; return TRUE;
} }
static int lease_get_info(PPOOL_CTX pAssign, const char *pRunSql, U64 *pDbId) {
int rc;
char **dbResult;
int nRow = 0, nColumn = 0;
rc = db_sqlite3_get_rows(pRunSql, &dbResult, &nRow, &nColumn, NULL);
if (rc == ERR_SUCCESS && nRow > 0 && nColumn > 0) {
char *pNetmask = dbResult[nColumn + 3];
char *pGateway = dbResult[nColumn + 4];
char *pDns1 = dbResult[nColumn + 5];
char *pDns2 = dbResult[nColumn + 6];
// minAddr 记录可分配的IP
pAssign->minAddr = ntohl(inet_addr(dbResult[nColumn + 1]));
pAssign->leaseTime = strtoul(dbResult[nColumn + 2], NULL, 10);
if (strlen(pNetmask) > 0) {
pAssign->netMask = ntohl(inet_addr(pNetmask));
}
if (strlen(pGateway) > 0) {
pAssign->gwAddr = ntohl(inet_addr(pGateway));
}
if (strlen(pDns1) > 0) {
pAssign->primeDNS = ntohl(inet_addr(pDns1));
}
if (strlen(pDns2) > 0) {
pAssign->salveDNS = ntohl(inet_addr(pDns2));
}
if (pDbId) {
*pDbId = strtoull(dbResult[nColumn], NULL, 10);
}
sqlite3_free_table(dbResult);
return ERR_SUCCESS;
} else {
sqlite3_free_table(dbResult);
return -ERR_ITEM_UNEXISTS;
}
}
int lease_get_from_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
int rc;
U64 id;
char buf[2048] = {0};
char macStr[20] = {0};
MAC_TO_STR(pReq->cliMac, macStr);
snprintf(buf, 2048, GET_LEASE_INFO_FMT, macStr, pReq->hostName, pReq->uid, u32_to_str_ip(pReq->serverAddr));
rc = lease_get_info(pAssign, buf, &id);
if (rc == ERR_SUCCESS) {
// 更新租约时间信息
memset(buf, 0, 1024);
snprintf(buf, 1024, UPDATE_LEASE_TIME_BY_ID_FMT, id);
if (db_sqlite3_sql_exec(buf, NULL, NULL, NULL) != ERR_SUCCESS) {
LOG_MOD(warn, ZM_DHCP_DB, "Update %llu lease time error: %s\n", id, buf);
}
return ERR_SUCCESS;
}
return -ERR_ITEM_UNEXISTS;
}
int lease_get_from_pre_assign(PDHCP_REQ pReq, PPOOL_CTX pAssign) {
int rc;
char buf[2048] = {0};
char macStr[20] = {0};
U64 id;
MAC_TO_STR(pReq->cliMac, macStr);
snprintf(buf, 2048, GET_ASSIGN_IP_INFO_FMT, macStr, pReq->hostName, pReq->uid, u32_to_str_ip(pReq->serverAddr),
DCHP_STEP_REQUEST_TIMEOUT);
rc = lease_get_info(pAssign, buf, &id);
if (rc == ERR_SUCCESS) {
const char *pNetmask = u32_to_str_ip_safe(htonl(pAssign->netMask));
const char *pGateway = u32_to_str_ip_safe(htonl(pAssign->gwAddr));
const char *pDns1 = u32_to_str_ip_safe(htonl(pAssign->primeDNS));
const char *pDns2 = u32_to_str_ip_safe(htonl(pAssign->salveDNS));
const char *pIp = u32_to_str_ip_safe(htonl(pAssign->minAddr));
// 删除预分配IP信息
memset(buf, 0, 2048);
sprintf(buf, "DELETE FROM pre_assign WHERE id = %llu;", id);
db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
// 添加租约信息到lease数据库
lease_add(pReq, pIp, pNetmask, pGateway, pDns1, pDns2, pAssign->leaseTime);
free((void *)pNetmask);
free((void *)pGateway);
free((void *)pDns1);
free((void *)pDns2);
free((void *)pIp);
return ERR_SUCCESS;
}
return -ERR_ITEM_UNEXISTS;
#if 0
rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL);
if (rc == ERR_SUCCESS && nRow > 0 && nColumn > 0) {
char *pNetmask = dbResult[nColumn + 3];
char *pGateway = dbResult[nColumn + 4];
char *pDns1 = dbResult[nColumn + 5];
char *pDns2 = dbResult[nColumn + 6];
// minAddr 记录可分配的IP
pAssign->minAddr = ntohl(inet_addr(dbResult[nColumn + 1]));
pAssign->leaseTime = strtoul(dbResult[nColumn + 2], NULL, 10);
if (strlen(pNetmask) > 0) {
pAssign->netMask = ntohl(inet_addr(pNetmask));
}
if (strlen(pGateway) > 0) {
pAssign->gwAddr = ntohl(inet_addr(pGateway));
}
if (strlen(pDns1) > 0) {
pAssign->primeDNS = ntohl(inet_addr(pDns1));
}
if (strlen(pDns2) > 0) {
pAssign->salveDNS = ntohl(inet_addr(pDns2));
}
// 删除预分配IP信息
memset(buf, 0, 2048);
sprintf(buf, "DELETE FROM pre_assign WHERE id = %s;", dbResult[nColumn]);
//db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
lease_add(pReq, dbResult[nColumn + 1], pNetmask, pGateway, pDns1, pDns2, pAssign->leaseTime);
sqlite3_free_table(dbResult);
return ERR_SUCCESS;
} else {
LOG_MOD(error, ZM_DHCP_DB, "No previously records: \n%s\n", buf);
}
sqlite3_free_table(dbResult);
return -ERR_ITEM_UNEXISTS;
#endif
}
int lease_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign) { int lease_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign) {
int rc; int rc;
char buf[1024] = {0}; char buf[1024] = {0};
@ -186,13 +478,30 @@ int lease_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *pr
snprintf(buf, 1024, UPDATE_CREATE_TIME_BY_ID_FMT, dbResult[3]); snprintf(buf, 1024, UPDATE_CREATE_TIME_BY_ID_FMT, dbResult[3]);
db_sqlite3_sql_exec(buf, NULL, NULL, NULL); db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
} }
rc = ERR_ITEM_EXISTS;
sqlite3_free_table(dbResult);
return ERR_ITEM_EXISTS;
} else { } else {
rc = ERR_ITEM_UNEXISTS; memset(buf, 0, 1024);
snprintf(buf, 1024, GET_LEASE_EXISTS_ROW_FMT, mac, hostname, uid);
rc = db_sqlite3_get_rows(buf, &dbResult, &nRow, &nColumn, NULL);
if (rc == ERR_SUCCESS && nRow > 0 && nColumn > 0) {
if (preAssign) {
*preAssign = ntohl(inet_addr(dbResult[2]));
// 更新时间戳
memset(buf, 0, 1024);
snprintf(buf, 1024, UPDATE_CREATE_TIME_BY_ID_FMT, dbResult[3]);
db_sqlite3_sql_exec(buf, NULL, NULL, NULL);
}
sqlite3_free_table(dbResult);
return ERR_ITEM_EXISTS;
}
} }
sqlite3_free_table(dbResult); sqlite3_free_table(dbResult);
return rc; return ERR_ITEM_UNEXISTS;
} }
int lease_db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool) { int lease_db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool) {

278
srcs/service/dhcpd/dhcpd_network.c
View File

@ -158,7 +158,6 @@ U32 dhcp_get_default_netmask() {
void *get_pkg_free_buf() { void *get_pkg_free_buf() {
int i; int i;
ssize_t ret;
struct tpacket3_hdr *hdr; struct tpacket3_hdr *hdr;
for (i = 0; i < g_pkgRing.send.tp_frame_nr; i++) { for (i = 0; i < g_pkgRing.send.tp_frame_nr; i++) {
@ -183,22 +182,17 @@ U32 pkg_mmap_tx(U8 *pData, U32 nBytes) {
return hdr->tp_len; return hdr->tp_len;
} }
static int dhcp_resp_offer(PDHCP_PACKAGE pReq, PPOOL_CTX pIpInfo, U32 ip) { static void fill_package(PDHCP_PACKAGE pRsp, PDHCP_PACKAGE pReq) {
U8 *pOpt;
U16 csum;
int tolSize;
PDHCP_PACKAGE pRsp = get_pkg_free_buf();
if (pRsp == NULL) {
LOG_MOD(error, ZM_DHCP_NET, "Malloc memory error: %u\n", MAX_DHCP_PKG_SIZE);
return -ERR_MALLOC_MEMORY;
}
memset(pRsp, 0, MAX_DHCP_PKG_SIZE); memset(pRsp, 0, MAX_DHCP_PKG_SIZE);
// 二层头 // 二层头
// 目的IP地址 // 目的IP地址
memset(pRsp->vlan_hdr.eth.h_dest, 0xFF, ETH_ALEN); if (pReq->vlan_hdr.ip.saddr != 0) {
memcpy(pRsp->vlan_hdr.eth.h_dest, pRsp->vlan_hdr.eth.h_source, ETH_ALEN);
} else {
memset(pRsp->vlan_hdr.eth.h_dest, 0xFF, ETH_ALEN);
}
// 源 IP 地址 // 源 IP 地址
memcpy(pRsp->vlan_hdr.eth.h_source, g_nicInfo.macAddr, ETH_ALEN); memcpy(pRsp->vlan_hdr.eth.h_source, g_nicInfo.macAddr, ETH_ALEN);
// protol // protol
@ -216,7 +210,11 @@ static int dhcp_resp_offer(PDHCP_PACKAGE pReq, PPOOL_CTX pIpInfo, U32 ip) {
// 更新源IP // 更新源IP
pRsp->vlan_hdr.ip.saddr = g_nicInfo.ipAddr; pRsp->vlan_hdr.ip.saddr = g_nicInfo.ipAddr;
// 更新目的IP地址，广播255.255.255.255 // 更新目的IP地址，广播255.255.255.255
pRsp->vlan_hdr.ip.daddr = 0xFFFFFFFF; if (pReq->vlan_hdr.ip.saddr == 0) {
pRsp->vlan_hdr.ip.daddr = 0xFFFFFFFF;
} else {
pRsp->vlan_hdr.ip.daddr = pReq->vlan_hdr.ip.saddr;
}
// UDP 头 // UDP 头
// 目的端口 // 目的端口
@ -226,15 +224,13 @@ static int dhcp_resp_offer(PDHCP_PACKAGE pReq, PPOOL_CTX pIpInfo, U32 ip) {
//DHCP 协议 //DHCP 协议
// 返回类型 // 返回类型
pRsp->dhcp.op = BOOTP_REPLY; pRsp->dhcp.op = BOOTP_REPLY;
// 地址类型长度 // 地址类型长度
pRsp->dhcp.htype = pReq->dhcp.htype; pRsp->dhcp.htype = pReq->dhcp.htype;
// 地址长度 // 地址长度
pRsp->dhcp.hlen = pReq->dhcp.hlen; pRsp->dhcp.hlen = pReq->dhcp.hlen;
// xid // xid
pRsp->dhcp.xid = pReq->dhcp.xid; pRsp->dhcp.xid = pReq->dhcp.xid;
// 分配的 IP 地址
pRsp->dhcp.yiaddr = htonl(ip);
// 客户端 MAC 地址 // 客户端 MAC 地址
memcpy(pRsp->dhcp.chaddr, pReq->dhcp.chaddr, ETH_ALEN); memcpy(pRsp->dhcp.chaddr, pReq->dhcp.chaddr, ETH_ALEN);
// DHCP服务端主机名 // DHCP服务端主机名
@ -250,6 +246,120 @@ static int dhcp_resp_offer(PDHCP_PACKAGE pReq, PPOOL_CTX pIpInfo, U32 ip) {
pRsp->dhcp.ciaddr = 0; pRsp->dhcp.ciaddr = 0;
pRsp->dhcp.siaddr = 0; pRsp->dhcp.siaddr = 0;
pRsp->dhcp.giaddr = 0; pRsp->dhcp.giaddr = 0;
}
static int dhcp_prepare_tx(U8 *pOpt, PDHCP_PACKAGE pRsp) {
U16 csum;
int tolSize;
// 计算包总长度
tolSize = (int)((pOpt - pRsp->dhcp.options) + 1 + sizeof(DHCP_PACKAGE));
// 计算 IP 数据长度
pRsp->vlan_hdr.ip.tot_len = htons(tolSize - sizeof(struct ethhdr) - sizeof(struct vlan_hdr));
// 计算 UDP 数据长度
pRsp->vlan_hdr.udp.len = htons(tolSize - sizeof(struct ethhdr) - sizeof(struct vlan_hdr) - sizeof(struct iphdr));
// 计算 IP 校验和
csum = htons(ip_checksum((unsigned char *)&pRsp->vlan_hdr.ip));
pRsp->vlan_hdr.ip.check = htons(csum);
// 计算 UDP 校验和
csum = htons(udp_checksum(pRsp->vlan_hdr.ip.saddr, pRsp->vlan_hdr.ip.daddr, (unsigned char *)&pRsp->vlan_hdr.udp));
pRsp->vlan_hdr.udp.check = htons(csum);
LOG_MOD(trace, ZM_DHCP_NET, "OPTIONS size: %ld\n", (intptr_t)(pOpt - pRsp->dhcp.options) + 1);
LOG_MOD(trace, ZM_DHCP_NET, "Total size: %d\n", tolSize);
// 发送数据
if (pkg_mmap_tx((U8 *)pRsp, tolSize) != tolSize) {
LOG_MOD(error, ZM_DHCP_NET, "Send package(%u bytes) error\n", tolSize);
return -ERR_SOCK_SEND;
}
return ERR_SUCCESS;
}
static int dhcp_resp_nack(PDHCP_PACKAGE pReq) {
U8 *pOpt;
PDHCP_PACKAGE pRsp = get_pkg_free_buf();
if (pRsp == NULL) {
LOG_MOD(error, ZM_DHCP_NET, "Malloc memory error: %u\n", MAX_DHCP_PKG_SIZE);
return -ERR_MALLOC_MEMORY;
}
fill_package(pRsp, pReq);
// DHCP Options
pOpt = pRsp->dhcp.options;
// DHCP 消息类型
pOpt += dhcp_add_u8_option(pOpt, OPT_MESSAGETYPE, DHCP_MSG_NAK);
*pOpt = OPT_END;
return dhcp_prepare_tx(pOpt, pRsp);
}
static int dhcp_resp_ack(PDHCP_PACKAGE pReq, PPOOL_CTX pIpInfo) {
U8 *pOpt;
PDHCP_PACKAGE pRsp = get_pkg_free_buf();
if (pRsp == NULL) {
LOG_MOD(error, ZM_DHCP_NET, "Malloc memory error: %u\n", MAX_DHCP_PKG_SIZE);
return -ERR_MALLOC_MEMORY;
}
fill_package(pRsp, pReq);
// 分配的 IP 地址
pRsp->dhcp.yiaddr = htonl(pIpInfo->minAddr);
// DHCP Options
pOpt = pRsp->dhcp.options;
// DHCP 消息类型
pOpt += dhcp_add_u8_option(pOpt, OPT_MESSAGETYPE, DHCP_MSG_ACK);
// 子网掩码
pOpt += dhcp_add_u32_option(pOpt, OPT_NETMASK, htonl(pIpInfo->netMask));
// 租约
pOpt += dhcp_add_u32_option(pOpt, OPT_IPADDRLEASE, htonl(pIpInfo->leaseTime));
// DHCP Server
pOpt += dhcp_add_u32_option(pOpt, OPT_SERVERID, g_nicInfo.ipAddr);
// DNS
if (pIpInfo->primeDNS != 0) {
if (pIpInfo->salveDNS == 0) {
pOpt += dhcp_add_u32_option(pOpt, OPT_DNS, htonl(pIpInfo->primeDNS));
} else {
U8 buf[8] = {0};
U32 *pVal = (U32 *)buf;
*pVal++ = htonl(pIpInfo->primeDNS);
*pVal = htonl(pIpInfo->salveDNS);
pOpt += dhcp_add_buf_option(pOpt, OPT_DNS, buf, 8);
}
}
// 网关
if (pIpInfo->gwAddr != 0) {
pOpt += dhcp_add_u32_option(pOpt, OPT_ROUTER, htonl(pIpInfo->gwAddr));
}
// DHCP 主机名
pOpt += dhcp_add_string_option(pOpt, OPT_DOMAINNAME, "workgroup");
*pOpt = OPT_END;
return dhcp_prepare_tx(pOpt, pRsp);
}
static int dhcp_resp_offer(PDHCP_PACKAGE pReq, PPOOL_CTX pIpInfo, U32 ip) {
U8 *pOpt;
PDHCP_PACKAGE pRsp = get_pkg_free_buf();
if (pRsp == NULL) {
LOG_MOD(error, ZM_DHCP_NET, "Malloc memory error: %u\n", MAX_DHCP_PKG_SIZE);
return -ERR_MALLOC_MEMORY;
}
fill_package(pRsp, pReq);
// 分配的 IP 地址
pRsp->dhcp.yiaddr = htonl(ip);
// DHCP Options // DHCP Options
pOpt = pRsp->dhcp.options; pOpt = pRsp->dhcp.options;
@ -282,32 +392,7 @@ static int dhcp_resp_offer(PDHCP_PACKAGE pReq, PPOOL_CTX pIpInfo, U32 ip) {
pOpt += dhcp_add_string_option(pOpt, OPT_DOMAINNAME, "workgroup"); pOpt += dhcp_add_string_option(pOpt, OPT_DOMAINNAME, "workgroup");
*pOpt = OPT_END; *pOpt = OPT_END;
// 计算包总长度 return dhcp_prepare_tx(pOpt, pRsp);
tolSize = (int)((pOpt - pRsp->dhcp.options) + 1 + sizeof(DHCP_PACKAGE));
// 计算 IP 数据长度
pRsp->vlan_hdr.ip.tot_len = htons(tolSize - sizeof(struct ethhdr) - sizeof(struct vlan_hdr));
// 计算 UDP 数据长度
pRsp->vlan_hdr.udp.len = htons(tolSize - sizeof(struct ethhdr) - sizeof(struct vlan_hdr) - sizeof(struct iphdr));
// 计算 IP 校验和
csum = htons(ip_checksum((unsigned char *)&pRsp->vlan_hdr.ip));
pRsp->vlan_hdr.ip.check = htons(csum);
// 计算 UDP 校验和
csum = htons(udp_checksum(pRsp->vlan_hdr.ip.saddr, pRsp->vlan_hdr.ip.daddr, (unsigned char *)&pRsp->vlan_hdr.udp));
pRsp->vlan_hdr.udp.check = htons(csum);
LOG_MOD(trace, ZM_DHCP_NET, "OPTIONS size: %ld\n", (intptr_t)(pOpt - pRsp->dhcp.options) + 1);
LOG_MOD(trace, ZM_DHCP_NET, "Total size: %d\n", tolSize);
// 发送数据
if (pkg_mmap_tx((U8 *)pRsp, tolSize) != tolSize) {
LOG_MOD(error, ZM_DHCP_NET, "Send package(%u bytes) error\n", tolSize);
return -ERR_SOCK_SEND;
}
return ERR_SUCCESS;
} }
static void on_sock_recv(uv_work_t *req) { static void on_sock_recv(uv_work_t *req) {
@ -341,13 +426,13 @@ static void on_sock_recv(uv_work_t *req) {
reqDhcp.xid = DHCP_XID(pkg->dhcp.xid); reqDhcp.xid = DHCP_XID(pkg->dhcp.xid);
reqDhcp.uid = VLAN_VNI_ID(pkg->vlan_hdr.vlan.id); reqDhcp.uid = VLAN_VNI_ID(pkg->vlan_hdr.vlan.id);
reqDhcp.serverAddr = g_nicInfo.ipAddr; reqDhcp.serverAddr = g_nicInfo.ipAddr;
reqDhcp.cliAddr = ntohl(pkg->dhcp.ciaddr);
memcpy(reqDhcp.cliMac, pkg->dhcp.chaddr, ETH_ALEN); memcpy(reqDhcp.cliMac, pkg->dhcp.chaddr, ETH_ALEN);
MAC_TO_STR(reqDhcp.cliMac, macStr);
// LOG_MOD(trace, ZM_DHCP_NET, "<<< User %u xid %08X addr %p with user %u\n", reqDhcp.uid, reqDhcp.xid, pWork->pUser,
// pWork->pUser->uid);
switch (*optMsg.pValue) { switch (*optMsg.pValue) {
case DHCP_MSG_DISCOVER: case DHCP_MSG_DISCOVER:
// region DHCP Discover 处理
ret = dhcp_get_option(OPT_REQUESTEDIPADDR, pkg->dhcp.options, optSize, &opt); ret = dhcp_get_option(OPT_REQUESTEDIPADDR, pkg->dhcp.options, optSize, &opt);
if (ret == ERR_SUCCESS && opt.len == sizeof(U32)) { if (ret == ERR_SUCCESS && opt.len == sizeof(U32)) {
reqDhcp.reqIpAddr = ntohl(*((U32 *)opt.pValue)); reqDhcp.reqIpAddr = ntohl(*((U32 *)opt.pValue));
@ -373,30 +458,117 @@ static void on_sock_recv(uv_work_t *req) {
strncpy(reqDhcp.hostName, (char *)opt.pValue, MIN((int)opt.len, 256)); strncpy(reqDhcp.hostName, (char *)opt.pValue, MIN((int)opt.len, 256));
} }
MAC_TO_STR(reqDhcp.cliMac, macStr);
ret = pre_alloc_dhcp_res(&reqDhcp, pWork->pUser, &ip, &pIpInfo); ret = pre_alloc_dhcp_res(&reqDhcp, pWork->pUser, &ip, &pIpInfo);
if (ret == ERR_SUCCESS) { if (ret == ERR_SUCCESS) {
LOG_MOD(debug, ZM_DHCP_NET, "User %5u DHCP prepare assign ipaddress: [%s(%s)] --> %s\n", reqDhcp.uid, LOG_MOD(debug, ZM_DHCP_NET, "User %u DHCP prepare assign ipaddress: [%s(%s)] --> %s\n", reqDhcp.uid,
macStr, reqDhcp.hostName, u32_to_str_ip(ntohl(ip))); macStr, reqDhcp.hostName, u32_to_str_ip(ntohl(ip)));
ret = dhcp_resp_offer(pkg, pIpInfo, ip); ret = dhcp_resp_offer(pkg, pIpInfo, ip);
if (ret != ERR_SUCCESS) { if (ret != ERR_SUCCESS) {
LOG_MOD(error, ZM_DHCP_NET, "Send Offer error: %d\n", ret); LOG_MOD(error, ZM_DHCP_NET, "Send Offer error: %d\n", ret);
} }
} else { } else {
LOG_MOD(error, ZM_DHCP_NET, "DHCP prepare assign ipaddress error: User %u [%s(%s)] resion %s\n", LOG_MOD(error, ZM_DHCP_NET, "DHCP prepare assign ipaddress error: User %u [%s(%s)] resion %s\n",
reqDhcp.uid, macStr, reqDhcp.hostName, getErrorEnumNameString(-ret)); reqDhcp.uid, macStr, reqDhcp.hostName, getErrorEnumNameString(ret));
} }
// endregion
break; break;
case DHCP_MSG_REQUEST: case DHCP_MSG_REQUEST:
// region DHCP Request 处理
// 客户端请求的服务器
ret = dhcp_get_option(OPT_SERVERID, pkg->dhcp.options, optSize, &opt);
if (ret == ERR_SUCCESS && opt.len == sizeof(U32)) {
reqDhcp.reqServer = ntohl(*((U32 *)opt.pValue));
} else {
// Request 服务器IP可以取目的 IP 地址
if (pkg->vlan_hdr.ip.saddr != 0) {
reqDhcp.reqServer = ntohl(pkg->vlan_hdr.ip.daddr);
}
}
// 客户端请求的IP
ret = dhcp_get_option(OPT_REQUESTEDIPADDR, pkg->dhcp.options, optSize, &opt);
if (ret == ERR_SUCCESS && opt.len == sizeof(U32)) {
reqDhcp.reqIpAddr = ntohl(*((U32 *)opt.pValue));
} else {
reqDhcp.reqIpAddr = reqDhcp.cliAddr;
}
// 客户端主机名
ret = dhcp_get_option(OPT_HOSTNAME, pkg->dhcp.options, optSize, &opt);
if (ret == ERR_SUCCESS) {
strncpy(reqDhcp.hostName, (char *)opt.pValue, MIN((int)opt.len, 256));
}
// 当改请求的服务端不是本机时，忽略该消息
if (reqDhcp.reqServer != ntohl(g_nicInfo.ipAddr)) {
const char *pReq = u32_to_str_ip_safe(htonl(reqDhcp.reqServer));
const char *pLocal = u32_to_str_ip_safe(g_nicInfo.ipAddr);
LOG_MOD(debug, ZM_DHCP_NET, "Receive others server's DHCP request: request need %s, localhost %s\n",
pReq, pLocal);
free((void *)pReq);
free((void *)pLocal);
} else {
POOL_CTX ctx = {0};
if ((ret = is_pre_assigned(&reqDhcp, &ctx)) == ERR_SUCCESS) {
LOG_MOD(debug, ZM_DHCP_NET, "User %u DHCP assign ipaddress: [%s(%s)] --> %s\n", reqDhcp.uid, macStr,
reqDhcp.hostName, u32_to_str_ip(ntohl(ctx.minAddr)));
ret = dhcp_resp_ack(pkg, &ctx);
} else {
LOG_MOD(error, ZM_DHCP_NET, "DHCP assign ipaddress error: User %u [%s(%s)] resion %s\n",
reqDhcp.uid, macStr, reqDhcp.hostName, getErrorEnumNameString(ret));
// Send NACK
ret = dhcp_resp_nack(pkg);
}
if (ret != ERR_SUCCESS) {
LOG_MOD(error, ZM_DHCP_NET, "Send Offer error: %d\n", ret);
}
}
// endregion
break; break;
case DHCP_MSG_RELEASE: case DHCP_MSG_RELEASE:
// region DHCP Release 处理
// 客户端请求的服务器
ret = dhcp_get_option(OPT_SERVERID, pkg->dhcp.options, optSize, &opt);
if (ret == ERR_SUCCESS && opt.len == sizeof(U32)) {
reqDhcp.reqServer = ntohl(*((U32 *)opt.pValue));
} else {
// Request 服务器IP可以取目的 IP 地址
if (pkg->vlan_hdr.ip.saddr != 0) {
reqDhcp.reqServer = ntohl(pkg->vlan_hdr.ip.saddr);
}
}
reqDhcp.reqIpAddr = ntohl(pkg->dhcp.ciaddr);
lease_release(&reqDhcp);
LOG_MOD(debug, ZM_DHCP_NET, "User %u DHCP release lease: [%s(%s)] --> %s\n", reqDhcp.uid, macStr,
reqDhcp.hostName, u32_to_str_ip(ntohl(reqDhcp.reqIpAddr)));
// endregion
break; break;
case DHCP_MSG_INFORM: case DHCP_MSG_INFORM:
// 客户端主机名
ret = dhcp_get_option(OPT_HOSTNAME, pkg->dhcp.options, optSize, &opt);
if (ret == ERR_SUCCESS) {
strncpy(reqDhcp.hostName, (char *)opt.pValue, MIN((int)opt.len, 256));
}
// 当前分配的租约添加到本地数据库中， 后续分配能够发现对应的主机信息
ret = lease_add_host(&reqDhcp);
if (ret == ERR_SUCCESS) {
LOG_MOD(debug, ZM_DHCP_NET, "User %u DHCP prepare assign ipaddress: [%s(%s)] --> %s\n", reqDhcp.uid,
macStr, reqDhcp.hostName, u32_to_str_ip(ntohl(reqDhcp.cliAddr)));
} else {
LOG_MOD(error, ZM_DHCP_NET, "DHCP prepare assign ipaddress error: User %u [%s(%s)] resion %s\n",
reqDhcp.uid, macStr, reqDhcp.hostName, getErrorEnumNameString(ret));
}
break; break;
case DHCP_MSG_DECLINE: case DHCP_MSG_DECLINE:
// 清理掉上次分配的租约
break; break;
default: default:
LOG_MOD(error, ZM_DHCP_NET, "Unkonwn DHCP message type: %d\n", *optMsg.pValue); LOG_MOD(error, ZM_DHCP_NET, "Unkonwn DHCP message type: %d\n", *optMsg.pValue);

6
srcs/service/dhcpd/include/db_interface.h
View File

@ -11,8 +11,12 @@ int lease_db_add_pre_assign(PDHCP_REQ pReq, U32 ip, PPOOL_CTX pPool);
int lease_init_database(); int lease_init_database();
int lease_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign); int lease_get_pre_assign(U32 uid, const char *mac, const char *hostname, U32 *preAssign);
int lease_ip_is_pre_assign(U32 uid, U32 ip); int lease_ip_is_pre_assign(U32 uid, U32 ip);
int lease_clearup_timeout_pre_assign(); int lease_get_from_pre_assign(PDHCP_REQ pReq, PPOOL_CTX pAssign);
int lease_get_from_lease(PDHCP_REQ pReq, PPOOL_CTX pAssign);
int lease_clearup_timeout_items();
int lease_lock_pre_assign_ip(); int lease_lock_pre_assign_ip();
int db_release_lease(PDHCP_REQ pReq);
int db_add_lease(PDHCP_REQ pReq, PPOOL_CTX pCtx);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

3
srcs/service/dhcpd/include/lease.h
View File

@ -31,6 +31,9 @@ typedef struct {
int dhcp_lease_init(); int dhcp_lease_init();
int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX *pOutPool); int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX *pOutPool);
int usr_lease_lock_ip(PDHCP_USER pUser, U32 ip); int usr_lease_lock_ip(PDHCP_USER pUser, U32 ip);
int is_pre_assigned(PDHCP_REQ pReq, PPOOL_CTX pCtx);
int lease_release(PDHCP_REQ pReq);
int lease_add_host(PDHCP_REQ pReq);
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

2
srcs/service/dhcpd/include/rfc2131.h
View File

@ -27,7 +27,9 @@ typedef struct {
U32 leaseTime; U32 leaseTime;
char clientId[256]; char clientId[256];
char vendorClassId[256]; char vendorClassId[256];
U32 reqServer;
U32 serverAddr; U32 serverAddr;
U32 cliAddr;
char hostName[256]; char hostName[256];
} DHCP_REQ, *PDHCP_REQ; } DHCP_REQ, *PDHCP_REQ;

47
srcs/service/dhcpd/lease.c
View File

@ -39,6 +39,38 @@ int usr_lease_lock_ip(PDHCP_USER pUser, U32 ip) {
return -ERR_MALLOC_MEMORY; return -ERR_MALLOC_MEMORY;
} }
int lease_add_host(PDHCP_REQ pReq) {
PDHCP_USER pUser = dhcp_user_create(pReq->uid);
if (pUser) {
PPOOL_CTX pPool, pTemp;
// 查找对应的地址池
LL_FOREACH_SAFE(pUser->pUserPool, pPool, pTemp) {
// 比较 IP 范围
if (pPool->minAddr <= pReq->cliAddr && pPool->maxAddr >= pReq->cliAddr) {
// 添加记录到数据库
db_add_lease(pReq, pPool);
return ERR_SUCCESS;
}
}
}
return ERR_SUCCESS;
}
int is_pre_assigned(PDHCP_REQ pReq, PPOOL_CTX pCtx) {
// 首先从租约信息中获取数据
if (lease_get_from_lease(pReq, pCtx) == ERR_SUCCESS) {
return ERR_SUCCESS;
}
// 从预分配IP中获取信息
return lease_get_from_pre_assign(pReq, pCtx);
}
int lease_release(PDHCP_REQ pReq) {
return db_release_lease(pReq);
}
//int pre_alloc_dhcp_res(U32 uid, const char *pMac, U32 *pOutIp, PIPPOOL_INFO *pOutPool) { //int pre_alloc_dhcp_res(U32 uid, const char *pMac, U32 *pOutIp, PIPPOOL_INFO *pOutPool) {
int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX *pOutPool) { int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX *pOutPool) {
PPOOL_CTX pPool, pTemp; PPOOL_CTX pPool, pTemp;
@ -66,7 +98,6 @@ int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX
// 该 IP 可用 // 该 IP 可用
if (pLock == NULL) { if (pLock == NULL) {
#if 1
if (lease_ip_is_pre_assign(pReq->uid, addr) == FALSE) { if (lease_ip_is_pre_assign(pReq->uid, addr) == FALSE) {
usr_lease_lock_ip(pUser, addr); usr_lease_lock_ip(pUser, addr);
*pOutIp = addr; *pOutIp = addr;
@ -76,16 +107,6 @@ int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX
return ERR_SUCCESS; return ERR_SUCCESS;
} }
#else
usr_lease_lock_ip(pUser, addr);
*pOutIp = addr;
*pOutPool = pPool;
lease_db_add_pre_assign(pReq, addr, pPool);
// LOG_MOD(debug, ZM_DHCP_LEASE, "User %u(%u) prepar assign ipaddr %08X of %p\n", pReq->uid, pUser->uid,
// addr, pPool);
return ERR_SUCCESS;
#endif
} }
addr++; addr++;
@ -93,7 +114,7 @@ int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX
} }
// 清理所有超时的预分配IP // 清理所有超时的预分配IP
lease_clearup_timeout_pre_assign(); lease_clearup_timeout_items();
// 没有可预分配的IP，报错 // 没有可预分配的IP，报错
//LOG_MOD(error, ZM_DHCP_LEASE, "No free ipaddress in poll: uid = %u, pool = %p\n", pReq->uid, pUser->pUserPool); //LOG_MOD(error, ZM_DHCP_LEASE, "No free ipaddress in poll: uid = %u, pool = %p\n", pReq->uid, pUser->pUserPool);
return -ERR_DHCP_NO_ADDR; return -ERR_DHCP_NO_ADDR;
@ -109,7 +130,7 @@ int dhcp_lease_init() {
} }
// 清理所有超时的预分配IP // 清理所有超时的预分配IP
lease_clearup_timeout_pre_assign(); lease_clearup_timeout_items();
// lock 预分配 IP // lock 预分配 IP
lease_lock_pre_assign_ip(); lease_lock_pre_assign_ip();