diff options
| author |   Eyal Bari <ebari@cisco.com> | 2018-11-05 13:29:25 +0200 |
|---|---|---|
| committer |   John Lo <loj@cisco.com> | 2018-11-20 02:52:39 +0000 |
| commit | d3d424180fcd98561d656d5c2189e9e59ef2b2b9 (patch) | |
| tree | a9288e7e960b97072de833fb3453303c1d242198 /src/vnet/dhcp/dhcp4_packet.h | |
| parent | c7b03fe8f3fd2753d97ffdf8e7ebd85e2c527085 (diff) | |
dhcp4:(VPP-1483) linearize chained packets before handling
dhcp packets might (when flooded) arrive in chains of cloned buffers
Change-Id: Ifddecd656b6a5d6ba8cd94184f5c021684e35548
Signed-off-by: Eyal Bari <ebari@cisco.com>
Diffstat (limited to 'src/vnet/dhcp/dhcp4_packet.h')
| -rw-r--r-- | src/vnet/dhcp/dhcp4_packet.h | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/src/vnet/dhcp/dhcp4_packet.h b/src/vnet/dhcp/dhcp4_packet.h index 9fbeb02fb2b..3076dd9529d 100644 --- a/src/vnet/dhcp/dhcp4_packet.h +++ b/src/vnet/dhcp/dhcp4_packet.h @@ -21,6 +21,17 @@ typedef struct { + u8 option; + u8 length; + union + { + u8 data[0]; + u32 data_as_u32[0]; + }; +} __attribute__ ((packed)) dhcp_option_t; + +typedef struct +{ u8 opcode; /* 1 = request, 2 = reply */ u8 hardware_type; /* 1 = ethernet */ u8 hardware_address_length; @@ -37,20 +48,9 @@ typedef struct u8 server_name[64]; u8 boot_filename[128]; ip4_address_t magic_cookie; - u8 options[0]; + dhcp_option_t options[0]; } dhcp_header_t; -typedef struct -{ - u8 option; - u8 length; - union - { - u8 data[0]; - u32 data_as_u32[0]; - }; -} __attribute__ ((packed)) dhcp_option_t; - typedef enum { DHCP_PACKET_DISCOVER = 1, @@ -63,6 +63,7 @@ typedef enum typedef enum dhcp_packet_option_t_ { DHCP_PACKET_OPTION_MSG_TYPE = 53, + DHCP_PACKET_OPTION_END = 0xff, } dhcp_packet_option_t; /* charming antique: 99.130.83.99 is the dhcp magic cookie */ |