net: Use packed structures for networking

[u-boot] / include / net.h

diff --git a/include/net.h b/include/net.h
index 2eaa88224c9050755330e67a57ae7b541cfaa3fa..e1269486ad9cf11562c5aa432a33527f894ce325 100644 (file)
--- a/include/net.h
+++ b/include/net.h
@@ -308,7 +308,7 @@ struct ethernet_hdr {
        u8              et_dest[ARP_HLEN];      /* Destination node     */
        u8              et_src[ARP_HLEN];       /* Source node          */
        u16             et_protlen;             /* Protocol or length   */
-};
+} __attribute__((packed));
 
 /* Ethernet header size */
 #define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr))
@@ -326,7 +326,7 @@ struct e802_hdr {
        u8              et_snap2;
        u8              et_snap3;
        u16             et_prot;                /* 802 protocol         */
-};
+} __attribute__((packed));
 
 /* 802 + SNAP + ethernet header size */
 #define E802_HDR_SIZE  (sizeof(struct e802_hdr))
@@ -340,7 +340,7 @@ struct vlan_ethernet_hdr {
        u16             vet_vlan_type;          /* PROT_VLAN            */
        u16             vet_tag;                /* TAG of VLAN          */
        u16             vet_type;               /* protocol type        */
-};
+} __attribute__((packed));
 
 /* VLAN Ethernet header size */
 #define VLAN_ETHER_HDR_SIZE    (sizeof(struct vlan_ethernet_hdr))
@@ -369,7 +369,7 @@ struct ip_hdr {
        u16             ip_sum;         /* checksum                     */
        struct in_addr  ip_src;         /* Source IP address            */
        struct in_addr  ip_dst;         /* Destination IP address       */
-};
+} __attribute__((packed));
 
 #define IP_OFFS                0x1fff /* ip offset *= 8 */
 #define IP_FLAGS       0xe000 /* first 3 bits */
@@ -397,7 +397,7 @@ struct ip_udp_hdr {
        u16             udp_dst;        /* UDP destination port         */
        u16             udp_len;        /* Length of UDP packet         */
        u16             udp_xsum;       /* Checksum                     */
-};
+} __attribute__((packed));
 
 #define IP_UDP_HDR_SIZE                (sizeof(struct ip_udp_hdr))
 #define UDP_HDR_SIZE           (IP_UDP_HDR_SIZE - IP_HDR_SIZE)
@@ -435,7 +435,7 @@ struct arp_hdr {
        u8              ar_tha[];       /* Target hardware address      */
        u8              ar_tpa[];       /* Target protocol address      */
 #endif /* 0 */
-};
+} __attribute__((packed));
 
 #define ARP_HDR_SIZE   (8+20)          /* Size assuming ethernet       */
 
@@ -470,7 +470,7 @@ struct icmp_hdr {
                } frag;
                u8 data[0];
        } un;
-};
+} __attribute__((packed));
 
 #define ICMP_HDR_SIZE          (sizeof(struct icmp_hdr))
 #define IP_ICMP_HDR_SIZE       (IP_HDR_SIZE + ICMP_HDR_SIZE)