ipoe: implemented support for freeradius dhcp attributes

4 files changed, 396 insertions, 10 deletions

diff --git a/accel-pppd/ctrl/ipoe/dhcp_attr_defs.h b/accel-pppd/ctrl/ipoe/dhcp_attr_defs.h
new file mode 100644
index 0000000..c68111c
--- /dev/null
+++ b/accel-pppd/ctrl/ipoe/dhcp_attr_defs.h
@@ -0,0 +1,311 @@
+#define VENDOR_DHCP 54
+#define DHCP_Opcode 256
+#define DHCP_Hardware_Type 257
+#define DHCP_Hardware_Address_Length 258
+#define DHCP_Hop_Count 259
+#define DHCP_Transaction_Id 260
+#define DHCP_Number_of_Seconds 261
+#define DHCP_Flags 262
+#define DHCP_Client_IP_Address 263
+#define DHCP_Your_IP_Address 264
+#define DHCP_Server_IP_Address 265
+#define DHCP_Gateway_IP_Address 266
+#define DHCP_Client_Hardware_Address 267
+#define DHCP_Server_Host_Name 268
+#define DHCP_Boot_Filename 269
+#define DHCP_Relay_To_IP_Address 270
+#define DHCP_Relay_Max_Hop_Count 271
+#define DHCP_Relay_IP_Address 272
+#define DHCP_Flags_Broadcast 0x8000
+#define DHCP_Hardware_Type_Ethernet 1
+#define DHCP_Hardware_Type_Experiemental_Ethernet 2
+#define DHCP_Hardware_Type_AX_25 3
+#define DHCP_Hardware_Type_Proteon_Token_Ring 4
+#define DHCP_Hardware_Type_Chaos 5
+#define DHCP_Hardware_Type_IEEE_802 6
+#define DHCP_Hardware_Type_Arcnet 7
+#define DHCP_Hardware_Type_Hyperchannel 8
+#define DHCP_Hardware_Type_Lanstar 9
+#define DHCP_Hardware_Type_Autonet_Short_Address 10
+#define DHCP_Hardware_Type_LocalTalk 11
+#define DHCP_Hardware_Type_LocalNet 12
+#define DHCP_Hardware_Type_Ultra_Link 13
+#define DHCP_Hardware_Type_SMDS 14
+#define DHCP_Hardware_Type_Frame_Relay 15
+#define DHCP_Hardware_Type_ATM_16 16
+#define DHCP_Hardware_Type_HDLC 17
+#define DHCP_Hardware_Type_Fibre_Channel 18
+#define DHCP_Hardware_Type_ATM_19 19
+#define DHCP_Hardware_Type_Serial_Line 20
+#define DHCP_Hardware_Type_ATM_21 21
+#define DHCP_Hardware_Type_MIL_STD_188_220 22
+#define DHCP_Hardware_Type_Metricom 23
+#define DHCP_Hardware_Type_IEEE_1394 24
+#define DHCP_Hardware_Type_MAPOS 25
+#define DHCP_Hardware_Type_Twinaxial 26
+#define DHCP_Hardware_Type_EUI_64 27
+#define DHCP_Hardware_Type_HIPARP 28
+#define DHCP_Hardware_Type_IP_Over_ISO_7816_3 29
+#define DHCP_Hardware_Type_ARPSec 30
+#define DHCP_Hardware_Type_IPSec_Tunnel 31
+#define DHCP_Hardware_Type_Infiniband 32
+#define DHCP_Hardware_Type_CAI_TIA_102 33
+#define DHCP_Subnet_Mask 1
+#define DHCP_Time_Offset 2
+#define DHCP_Router_Address 3
+#define DHCP_Time_Server 4
+#define DHCP_IEN_116_Name_Server 5
+#define DHCP_Domain_Name_Server 6
+#define DHCP_Log_Server 7
+#define DHCP_Quotes_Server 8
+#define DHCP_LPR_Server 9
+#define DHCP_Impress_Server 10
+#define DHCP_RLP_Server 11
+#define DHCP_Hostname 12
+#define DHCP_Boot_File_Size 13
+#define DHCP_Merit_Dump_File 14
+#define DHCP_Domain_Name 15
+#define DHCP_Swap_Server 16
+#define DHCP_Root_Path 17
+#define DHCP_Bootp_Extensions_Path 18
+#define DHCP_IP_Forward_Enable 19
+#define DHCP_Source_Route_Enable 20
+#define DHCP_Policy_Filter 21
+#define DHCP_Max_Datagram_Reassembly_Sz 22
+#define DHCP_Default_IP_TTL 23
+#define DHCP_Path_MTU_Aging_Timeout 24
+#define DHCP_Path_MTU_Plateau_Table 25
+#define DHCP_Interface_MTU_Size 26
+#define DHCP_All_Subnets_Are_Local 27
+#define DHCP_Broadcast_Address 28
+#define DHCP_Perform_Mask_Discovery 29
+#define DHCP_Provide_Mask_To_Others 30
+#define DHCP_Perform_Router_Discovery 31
+#define DHCP_Router_Solicitation_Address 32
+#define DHCP_Static_Routes 33
+#define DHCP_Trailer_Encapsulation 34
+#define DHCP_ARP_Cache_Timeout 35
+#define DHCP_Ethernet_Encapsulation 36
+#define DHCP_Default_TCP_TTL 37
+#define DHCP_Keep_Alive_Interval 38
+#define DHCP_Keep_Alive_Garbage 39
+#define DHCP_NIS_Domain_Name 40
+#define DHCP_NIS_Servers 41
+#define DHCP_NTP_Servers 42
+#define DHCP_Vendor 43
+#define DHCP_NETBIOS_Name_Servers 44
+#define DHCP_NETBIOS_Dgm_Dist_Servers 45
+#define DHCP_NETBIOS_Node_Type 46
+#define DHCP_NETBIOS 47
+#define DHCP_X_Window_Font_Server 48
+#define DHCP_X_Window_Display_Mgr 49
+#define DHCP_Requested_IP_Address 50
+#define DHCP_IP_Address_Lease_Time 51
+#define DHCP_Overload 52
+#define DHCP_Message_Type 53
+#define DHCP_DHCP_Server_Identifier 54
+#define DHCP_Parameter_Request_List 55
+#define DHCP_DHCP_Error_Message 56
+#define DHCP_DHCP_Maximum_Msg_Size 57
+#define DHCP_Renewal_Time 58
+#define DHCP_Rebinding_Time 59
+#define DHCP_Vendor_Class_Identifier 60
+#define DHCP_Client_Identifier 61
+#define DHCP_Netware_Domain_Name 62
+#define DHCP_Netware_Sub_Options 63
+#define DHCP_NIS_Client_Domain_Name 64
+#define DHCP_NIS_Server_Address 65
+#define DHCP_TFTP_Server_Name 66
+#define DHCP_Boot_File_Name 67
+#define DHCP_Home_Agent_Address 68
+#define DHCP_SMTP_Server_Address 69
+#define DHCP_POP3_Server_Address 70
+#define DHCP_NNTP_Server_Address 71
+#define DHCP_WWW_Server_Address 72
+#define DHCP_Finger_Server_Address 73
+#define DHCP_IRC_Server_Address 74
+#define DHCP_StreetTalk_Server_Address 75
+#define DHCP_STDA_Server_Address 76
+#define DHCP_User_Class 77
+#define DHCP_Directory_Agent 78
+#define DHCP_Service_Scope 79
+#define DHCP_Rapid_Commit 80
+#define DHCP_Client_FQDN 81
+#define DHCP_Relay_Agent_Information 82
+#define DHCP_Agent_Circuit_Id 1
+#define DHCP_Agent_Remote_Id 2
+#define DHCP_Relay_Circuit_Id 1
+#define DHCP_Relay_Remote_Id 2
+#define DHCP_Docsis_Device_Class 4
+#define DHCP_Relay_Link_Selection 5
+#define DHCP_Subscriber_Id 6
+#define DHCP_RADIUS_Attributes 7
+#define DHCP_Authentication_Information 8
+#define DHCP_Vendor_Specific_Information 9
+#define DHCP_Relay_Agent_Flags 10
+#define DHCP_Server_Identifier_Override 11
+#define DHCP_iSNS 83
+#define DHCP_NDS_Servers 85
+#define DHCP_NDS_Tree_Name 86
+#define DHCP_NDS_Context 87
+#define DHCP_Authentication 90
+#define DHCP_Client_Last_Txn_Time 91
+#define DHCP_associated_ip 92
+#define DHCP_Client_System 93
+#define DHCP_Client_NDI 94
+#define DHCP_LDAP 95
+#define DHCP_UUID GUID
+#define DHCP_User_Auth 98
+#define DHCP_Netinfo_Address 112
+#define DHCP_Netinfo_Tag 113
+#define DHCP_URL 114
+#define DHCP_Auto_Config 116
+#define DHCP_Name_Service_Search 117
+#define DHCP_Subnet_Selection_Option 118
+#define DHCP_Domain_Search 119
+#define DHCP_SIP_Servers_DHCP_Option 120
+#define DHCP_Classless_Static_Route 121
+#define DHCP_CCC 122
+#define DHCP_GeoConf_Option 123
+#define DHCP_V_I_Vendor_Class 124
+#define DHCP_V_I_Vendor_Specific 125
+#define DHCP_Etherboot 128
+#define DHCP_TFTP_Server_IP_Address 128
+#define DHCP_Call_Server_IP_address 129
+#define DHCP_Ethernet_Interface 130
+#define DHCP_Vendor_Discrimination_Str 130
+#define DHCP_Remote_Stats_Svr_IP_Address 131
+#define DHCP_IEEE_802_1Q_L2_Priority 132
+#define DHCP_IEEE_802_1P_VLAN_ID 133
+#define DHCP_Diffserv_Code_Point 134
+#define DHCP_HTTP_Proxy 135
+#define DHCP_Cisco_TFTP_Server_IP_Addresses 150
+#define DHCP_End_Of_Options 255
+#define DHCP_Opcode_Client_Message 1
+#define DHCP_Opcode_Server_Message 2
+#define DHCP_Message_Type_DHCP_Discover 1
+#define DHCP_Message_Type_DHCP_Offer 2
+#define DHCP_Message_Type_DHCP_Request 3
+#define DHCP_Message_Type_DHCP_Decline 4
+#define DHCP_Message_Type_DHCP_Ack 5
+#define DHCP_Message_Type_DHCP_NAK 6
+#define DHCP_Message_Type_DHCP_Release 7
+#define DHCP_Message_Type_DHCP_Inform 8
+#define DHCP_Message_Type_DHCP_Force_Renew 9
+#define DHCP_Parameter_Request_List_DHCP_Subnet_Mask 1
+#define DHCP_Parameter_Request_List_DHCP_Time_Offset 2
+#define DHCP_Parameter_Request_List_DHCP_Router_Address 3
+#define DHCP_Parameter_Request_List_DHCP_Time_Server 4
+#define DHCP_Parameter_Request_List_DHCP_IEN_116_Name_Server 5
+#define DHCP_Parameter_Request_List_DHCP_Domain_Name_Server 6
+#define DHCP_Parameter_Request_List_DHCP_Log_Server 7
+#define DHCP_Parameter_Request_List_DHCP_Quotes_Server 8
+#define DHCP_Parameter_Request_List_DHCP_LPR_Server 9
+#define DHCP_Parameter_Request_List_DHCP_Impress_Server 10
+#define DHCP_Parameter_Request_List_DHCP_RLP_Server 11
+#define DHCP_Parameter_Request_List_DHCP_Hostname 12
+#define DHCP_Parameter_Request_List_DHCP_Boot_File_Size 13
+#define DHCP_Parameter_Request_List_DHCP_Merit_Dump_File 14
+#define DHCP_Parameter_Request_List_DHCP_Domain_Name 15
+#define DHCP_Parameter_Request_List_DHCP_Swap_Server 16
+#define DHCP_Parameter_Request_List_DHCP_Root_Path 17
+#define DHCP_Parameter_Request_List_DHCP_Bootp_Extensions_Path 18
+#define DHCP_Parameter_Request_List_DHCP_IP_Forward_Enable 19
+#define DHCP_Parameter_Request_List_DHCP_Source_Route_Enable 20
+#define DHCP_Parameter_Request_List_DHCP_Policy_Filter 21
+#define DHCP_Parameter_Request_List_DHCP_Max_Datagram_Reassembly_Sz 22
+#define DHCP_Parameter_Request_List_DHCP_Default_IP_TTL 23
+#define DHCP_Parameter_Request_List_DHCP_Path_MTU_Aging_Timeout 24
+#define DHCP_Parameter_Request_List_DHCP_Path_MTU_Plateau_Table 25
+#define DHCP_Parameter_Request_List_DHCP_Interface_MTU_Size 26
+#define DHCP_Parameter_Request_List_DHCP_All_Subnets_Are_Local 27
+#define DHCP_Parameter_Request_List_DHCP_Broadcast_Address 28
+#define DHCP_Parameter_Request_List_DHCP_Perform_Mask_Discovery 29
+#define DHCP_Parameter_Request_List_DHCP_Provide_Mask_To_Others 30
+#define DHCP_Parameter_Request_List_DHCP_Perform_Router_Discovery 31
+#define DHCP_Parameter_Request_List_DHCP_Router_Solicitation_Address 32
+#define DHCP_Parameter_Request_List_DHCP_Static_Routes 33
+#define DHCP_Parameter_Request_List_DHCP_Trailer_Encapsulation 34
+#define DHCP_Parameter_Request_List_DHCP_ARP_Cache_Timeout 35
+#define DHCP_Parameter_Request_List_DHCP_Ethernet_Encapsulation 36
+#define DHCP_Parameter_Request_List_DHCP_Default_TCP_TTL 37
+#define DHCP_Parameter_Request_List_DHCP_Keep_Alive_Interval 38
+#define DHCP_Parameter_Request_List_DHCP_Keep_Alive_Garbage 39
+#define DHCP_Parameter_Request_List_DHCP_NIS_Domain_Name 40
+#define DHCP_Parameter_Request_List_DHCP_NIS_Servers 41
+#define DHCP_Parameter_Request_List_DHCP_NTP_Servers 42
+#define DHCP_Parameter_Request_List_DHCP_Vendor 43
+#define DHCP_Parameter_Request_List_DHCP_NETBIOS_Name_Servers 44
+#define DHCP_Parameter_Request_List_DHCP_NETBIOS_Dgm_Dist_Servers 45
+#define DHCP_Parameter_Request_List_DHCP_NETBIOS_Node_Type 46
+#define DHCP_Parameter_Request_List_DHCP_NETBIOS 47
+#define DHCP_Parameter_Request_List_DHCP_X_Window_Font_Server 48
+#define DHCP_Parameter_Request_List_DHCP_X_Window_Display_Mgr 49
+#define DHCP_Parameter_Request_List_DHCP_Requested_IP_Address 50
+#define DHCP_Parameter_Request_List_DHCP_IP_Address_Lease_Time 51
+#define DHCP_Parameter_Request_List_DHCP_Overload 52
+#define DHCP_Parameter_Request_List_DHCP_Message_Type 53
+#define DHCP_Parameter_Request_List_DHCP_DHCP_Server_Identifier 54
+#define DHCP_Parameter_Request_List_DHCP_Parameter_Request_List 55
+#define DHCP_Parameter_Request_List_DHCP_DHCP_Error_Message 56
+#define DHCP_Parameter_Request_List_DHCP_DHCP_Maximum_Msg_Size 57
+#define DHCP_Parameter_Request_List_DHCP_Renewal_Time 58
+#define DHCP_Parameter_Request_List_DHCP_Rebinding_Time 59
+#define DHCP_Parameter_Request_List_DHCP_Class_Identifier 60
+#define DHCP_Parameter_Request_List_DHCP_Client_Identifier 61
+#define DHCP_Parameter_Request_List_DHCP_Netware_Domain_Name 62
+#define DHCP_Parameter_Request_List_DHCP_Netware_Sub_Options 63
+#define DHCP_Parameter_Request_List_DHCP_NIS_Client_Domain_Name 64
+#define DHCP_Parameter_Request_List_DHCP_NIS_Server_Address 65
+#define DHCP_Parameter_Request_List_DHCP_TFTP_Server_Name 66
+#define DHCP_Parameter_Request_List_DHCP_Boot_File_Name 67
+#define DHCP_Parameter_Request_List_DHCP_Home_Agent_Address 68
+#define DHCP_Parameter_Request_List_DHCP_SMTP_Server_Address 69
+#define DHCP_Parameter_Request_List_DHCP_POP3_Server_Address 70
+#define DHCP_Parameter_Request_List_DHCP_NNTP_Server_Address 71
+#define DHCP_Parameter_Request_List_DHCP_WWW_Server_Address 72
+#define DHCP_Parameter_Request_List_DHCP_Finger_Server_Address 73
+#define DHCP_Parameter_Request_List_DHCP_IRC_Server_Address 74
+#define DHCP_Parameter_Request_List_DHCP_StreetTalk_Server_Address 75
+#define DHCP_Parameter_Request_List_DHCP_STDA_Server_Address 76
+#define DHCP_Parameter_Request_List_DHCP_User_Class 77
+#define DHCP_Parameter_Request_List_DHCP_Directory_Agent 78
+#define DHCP_Parameter_Request_List_DHCP_Service_Scope 79
+#define DHCP_Parameter_Request_List_DHCP_Rapid_Commit 80
+#define DHCP_Parameter_Request_List_DHCP_Client_FQDN 81
+#define DHCP_Parameter_Request_List_DHCP_Relay_Agent_Information 82
+#define DHCP_Parameter_Request_List_DHCP_iSNS 83
+#define DHCP_Parameter_Request_List_DHCP_NDS_Servers 85
+#define DHCP_Parameter_Request_List_DHCP_NDS_Tree_Name 86
+#define DHCP_Parameter_Request_List_DHCP_NDS_Context 87
+#define DHCP_Parameter_Request_List_DHCP_Authentication 90
+#define DHCP_Parameter_Request_List_DHCP_Client_Last_Txn_Time 91
+#define DHCP_Parameter_Request_List_DHCP_associated_ip 92
+#define DHCP_Parameter_Request_List_DHCP_Client_System 93
+#define DHCP_Parameter_Request_List_DHCP_Client_NDI 94
+#define DHCP_Parameter_Request_List_DHCP_LDAP 95
+#define DHCP_Parameter_Request_List_DHCP_UUID GUID
+#define DHCP_Parameter_Request_List_DHCP_User_Auth 98
+#define DHCP_Parameter_Request_List_DHCP_Netinfo_Address 112
+#define DHCP_Parameter_Request_List_DHCP_Netinfo_Tag 113
+#define DHCP_Parameter_Request_List_DHCP_URL 114
+#define DHCP_Parameter_Request_List_DHCP_Auto_Config 116
+#define DHCP_Parameter_Request_List_DHCP_Name_Service_Search 117
+#define DHCP_Parameter_Request_List_DHCP_Subnet_Selection_Option 118
+#define DHCP_Parameter_Request_List_DHCP_Domain_Search 119
+#define DHCP_Parameter_Request_List_DHCP_SIP_Servers_DHCP_Option 120
+#define DHCP_Parameter_Request_List_DHCP_Classless_Static_Route 121
+#define DHCP_Parameter_Request_List_DHCP_CCC 122
+#define DHCP_Parameter_Request_List_DHCP_GeoConf_Option 123
+#define DHCP_Parameter_Request_List_DHCP_V_I_Vendor_Class 124
+#define DHCP_Parameter_Request_List_DHCP_V_I_Vendor_Specific 125
+#define DHCP_Parameter_Request_List_DHCP_Etherboot 128
+#define DHCP_Parameter_Request_List_DHCP_TFTP_Server_IP_Address 128
+#define DHCP_Parameter_Request_List_DHCP_Call_Server_IP_address 129
+#define DHCP_Parameter_Request_List_DHCP_Ethernet_Interface 130
+#define DHCP_Parameter_Request_List_DHCP_Vendor_Discrimination_Str 130
+#define DHCP_Parameter_Request_List_DHCP_Remote_Stats_Svr_IP_Address 131
+#define DHCP_Parameter_Request_List_DHCP_IEEE_802_1P_VLAN_ID 132
+#define DHCP_Parameter_Request_List_DHCP_IEEE_802_1Q_L2_Priority 133
+#define DHCP_Parameter_Request_List_DHCP_Diffserv_Code_Point 134
+#define DHCP_Parameter_Request_List_DHCP_HTTP_Proxy 135
diff --git a/accel-pppd/ctrl/ipoe/dhcpv4.c b/accel-pppd/ctrl/ipoe/dhcpv4.c
index 6d0d1c9..ccad318 100644
--- a/accel-pppd/ctrl/ipoe/dhcpv4.c
+++ b/accel-pppd/ctrl/ipoe/dhcpv4.c
@@ -22,6 +22,8 @@
 #include "memdebug.h"
 #include "ap_session.h"
 #include "ipdb.h"
+#include "radius.h"
+#include "dhcp_attr_defs.h"
 
 #include "dhcpv4.h"
 
@@ -1126,6 +1128,46 @@ void dhcpv4_reserve_ip(struct dhcpv4_serv *serv, uint32_t ip)
 	pthread_mutex_unlock(&serv->range->lock);
 }
 
+struct dhcpv4_packet *dhcpv4_clone_radius(struct rad_packet_t *rad)
+{
+	struct dhcpv4_packet *pkt = dhcpv4_packet_alloc();
+	uint8_t *ptr = pkt->data, *endptr = ptr + BUF_SIZE;
+	struct dhcpv4_option *opt;
+	struct rad_attr_t *attr;
+
+	if (!pkt)
+		return NULL;
+
+	pkt->refs = 1;
+
+	list_for_each_entry(attr, &rad->attrs, entry) {
+		if (attr->vendor && attr->vendor->id == VENDOR_DHCP && attr->attr->id < 256) {
+			if (ptr + attr->len >= endptr)
+				goto out;
+
+			opt = mempool_alloc(opt_pool);
+			if (!opt) {
+				log_emerg("out of memory\n");
+				goto out;
+			}
+			memset(opt, 0, sizeof(*opt));
+			opt->type = attr->attr->id;
+			opt->len = attr->len;
+			opt->data = ptr;
+			memcpy(ptr, attr->raw, attr->len);
+			ptr += attr->len;
+
+			list_add_tail(&opt->entry, &pkt->options);
+		}
+	}
+
+	return pkt;
+
+out:
+	dhcpv4_packet_free(pkt);
+	return NULL;
+}
+
 static void load_config()
 {
 	const char *opt;
diff --git a/accel-pppd/ctrl/ipoe/dhcpv4.h b/accel-pppd/ctrl/ipoe/dhcpv4.h
index 5847303..a7fa5a9 100644
--- a/accel-pppd/ctrl/ipoe/dhcpv4.h
+++ b/accel-pppd/ctrl/ipoe/dhcpv4.h
@@ -101,6 +101,7 @@ struct dhcpv4_relay {
 };
 
 struct ap_session;
+struct rad_packet_t;
 
 struct dhcpv4_serv *dhcpv4_create(struct triton_context_t *ctx, const char *ifname, const char *opt);
 void dhcpv4_free(struct dhcpv4_serv *);
@@ -120,6 +121,7 @@ void dhcpv4_packet_ref(struct dhcpv4_packet *pack);
 struct dhcpv4_option *dhcpv4_packet_find_opt(struct dhcpv4_packet *pack, int type);
 int dhcpv4_packet_insert_opt82(struct dhcpv4_packet *pack, const char *agent_circuit_id, const char *agent_remote_id);
 void dhcpv4_packet_free(struct dhcpv4_packet *pack);
+struct dhcpv4_packet *dhcpv4_clone_radius(struct rad_packet_t *);
 
 int dhcpv4_check_options(struct dhcpv4_packet *);
 void dhcpv4_print_options(struct dhcpv4_packet *, void (*)(const char *, ...));
diff --git a/accel-pppd/ctrl/ipoe/ipoe.c b/accel-pppd/ctrl/ipoe/ipoe.c
index 46bf68d..1e84b07 100644
--- a/accel-pppd/ctrl/ipoe/ipoe.c
+++ b/accel-pppd/ctrl/ipoe/ipoe.c
@@ -30,6 +30,7 @@
 #include "ap_session.h"
 #include "pwdb.h"
 #include "ipdb.h"
+#include "dhcp_attr_defs.h"
 
 #include "iputils.h"
 #include "ipset.h"
@@ -2089,6 +2090,19 @@ void ipoe_serv_recv_arp(struct ipoe_serv *serv, struct _arphdr *arph)
 }
 
 #ifdef RADIUS
+
+static int ipaddr_to_prefix(in_addr_t ipaddr)
+{
+	if (ipaddr == 0xffffffff)
+		return 32;
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	return 31 - ffs(htonl(ipaddr));
+#else
+	return 31 - ffs(ipaddr);
+#endif
+}
+
 static void ev_radius_access_accept(struct ev_radius_t *ev)
 {
 	struct ipoe_session *ses = container_of(ev->ses, typeof(*ses), ses);
@@ -2107,16 +2121,8 @@ static void ev_radius_access_accept(struct ev_radius_t *ev)
 			if (attr->attr->type == ATTR_TYPE_INTEGER) {
 				if (attr->val.integer > 0 && attr->val.integer < 31)
 					ses->mask = attr->val.integer;
-			} else if (attr->attr->type == ATTR_TYPE_IPADDR) {
-				if (attr->val.ipaddr == 0xffffffff)
-					ses->mask = 32;
-				else
-#if __BYTE_ORDER == __LITTLE_ENDIAN
-				ses->mask = 31 - ffs(htonl(attr->val.ipaddr));
-#else
-				ses->mask = 31 - ffs(attr->val.ipaddr);
-#endif
-			}
+			} else if (attr->attr->type == ATTR_TYPE_IPADDR)
+				ses->mask = ipaddr_to_prefix(attr->val.ipaddr);
 		} else if (attr->attr->id == conf_attr_l4_redirect) {
 			if (attr->attr->type == ATTR_TYPE_STRING) {
 				if (attr->len && attr->val.string[0] != '0')
@@ -2134,6 +2140,31 @@ static void ev_radius_access_accept(struct ev_radius_t *ev)
 		else if (attr->attr->id == conf_attr_l4_redirect_ipset) {
 			if (attr->attr->type == ATTR_TYPE_STRING)
 				ses->l4_redirect_ipset = _strdup(attr->val.string);
+		} else if (attr->vendor && attr->vendor->id == VENDOR_DHCP) {
+			ses->dhcpv4_relay_reply = dhcpv4_clone_radius(ev->reply);
+
+			switch (attr->attr->id) {
+				case DHCP_Your_IP_Address:
+					ses->yiaddr = attr->val.ipaddr;
+					break;
+				case DHCP_Server_IP_Address:
+					ses->yiaddr = attr->val.ipaddr;
+					break;
+				case DHCP_Router_Address:
+					ses->router = *(in_addr_t *)attr->raw;
+					break;
+				case DHCP_Subnet_Mask:
+					ses->mask = ipaddr_to_prefix(attr->val.ipaddr);
+					break;
+				case DHCP_IP_Address_Lease_Time:
+					ses->lease_time = attr->val.integer;
+					lease_time_set = 1;
+					break;
+				case DHCP_Renewal_Time:
+					ses->renew_time = attr->val.integer;
+					renew_time_set = 1;
+					break;
+			}
 		}
 	}