Add __packed__ to structs which cast over packet buffers

diff --git a/src/include/net.h b/src/include/net.h
index ef4205dfe53192ab6ae3b3c68816dbec17e7594d..61842334cbe86dd52c94f306a58dbec1b816a276 100644 (file)
--- a/src/include/net.h
+++ b/src/include/net.h
@@ -82,7 +82,7 @@ typedef enum {
 /*
  *     Structure of a DEC/Intel/Xerox or 802.3 Ethernet header.
  */
-typedef struct ethernet_header {
+typedef struct CC_HINT(__packed__) ethernet_header {
        uint8_t         ether_dst[ETHER_ADDR_LEN];
        uint8_t         ether_src[ETHER_ADDR_LEN];
        uint16_t        ether_type;
@@ -91,7 +91,7 @@ typedef struct ethernet_header {
 /*
  *     Structure of an internet header, naked of options.
  */
-typedef struct ip_header {
+typedef struct CC_HINT(__packed__) ip_header {
        uint8_t         ip_vhl;         //!< Header length, version.
 
        uint8_t         ip_tos;         //!< Type of service.
@@ -105,7 +105,7 @@ typedef struct ip_header {
        struct in_addr  ip_src, ip_dst; //!< Src and Dst address
 } ip_header_t;
 
-typedef struct ip_header6 {
+typedef struct CC_HINT(__packed__) ip_header6 {
        uint32_t        ip_vtcfl;       //!< Version, traffic class, flow label.
        uint16_t        ip_len;         //!< Payload length
 
@@ -119,14 +119,14 @@ typedef struct ip_header6 {
  *     UDP protocol header.
  *     Per RFC 768, September, 1981.
  */
-typedef struct udp_header {
+typedef struct CC_HINT(__packed__) udp_header {
        uint16_t        src;            //!< Source port.
        uint16_t        dst;            //!< Destination port.
        uint16_t        len;            //!< UDP length.
        uint16_t        checksum;       //!< UDP checksum.
 } udp_header_t;
 
-typedef struct radius_packet_t {
+typedef struct CC_HINT(__packed__) radius_packet_t {
        uint8_t         code;
        uint8_t         id;
        uint8_t         length[2];