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Follow common coding style and use:
switch (...)
instead of:
switch(...)
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Make the __proto_field_set_bytes() take a const uint8_t *bytes pointer
and also changed all callers accordingly.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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In some cases we use panic() in situations where the error could only
happen due to an implementation error. Use bug() there as it is more
applicable, as panic() is mainly used to report system call errors.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add support for MPLS header creating with fields:
Label, TClass, Bottom-Stack, TTL
By default S-field is set to 1 (last label), but resets to 0
if lower MPLS header is added.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add generation of VLAN header with supported fields:
TPID, DEI/CFI, PCP, VID
Changed struct proto_field.offset uint16_t -> int16_t to make
TPID offset -2 to point to ether type.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Move setting next protocol id field from higher protocols (ARP, IPv4)
to Ethernet. It makes code little more generic w/o checking each lower
protocol and setting specific field id.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add set_next_proto callback to proto_hdr struct to allow lower
protocol set next protocol id by enum proto_id.
Extended proto_lower_default_add(...) function to take upper protocol
to delegate it's id to lower protocol to set next protocol field.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Change proto_header_init(...) and proto_lower_default_add(...)
functions to return struct proto_hdr * to do not call
proto_current_header(...) after, so it makes more sense to get struct
proto_hdr * right after initializing protocol by id.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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This fixes the following sparse warning:
trafgen_l2.c:13:20: warning: symbol 'eth_fields' was not declared. Should it be static?
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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The IEEE 802.3 standard commonly refers to the field specifying the
upper layer protocol as Ethertype, not protocol. Thus, also support the
keywords "etype" and "type" for this field.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add ARP protocol header fields generation. By default htype ethernet (1)
and ptype IPv4 (0x0800) and the corresponding hlen/plen values will be
initialized and the opcode is set to ARP Request (1).
Source MAC and IP address are set to the device's addresses if not
specified.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
[tk: rephrase and extend commit message]
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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Add trafgen_l2.c module for generating L2 related headers.
Add Ethernet header generating. By default source MAC address
is used from the specified output device.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
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