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u-root -> dhcp -> u-root is the circular dependency. Which is fine,
except we messed up modules in u-root big time. We need to break the
circular dep for now.
Signed-off-by: Chris Koch <chrisko@google.com>
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- add raiValue in option_relay_agent_information.go to implement fmt.Stringer
- change test cases accordingly
Signed-off-by: Hu Jun <hujun.work@gmail.com>
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- add a space in OptionGeneric.String()
- move the indenting "\n" from OptionHumanizer.Stringify to RelayOptions.String()
Signed-off-by: Hu Jun <hujun.work@gmail.com>
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When there was a 0-length generic option, it would be omitted.
Rapid commit (option 80) is a 0-length option with a length tag.
There could also be 0-length options in the vendor extensions, and the
RFC states that they should be written out:
> Any options defined subsequent to this document should contain a
> length octet even if the length is fixed or zero.
Signed-off-by: Anatole Denis <natolumin@unverle.fr>
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From:
r := d.GetOneOption(OptionRouter).(*OptRouter).Routers
d.UpdateOption(&OptRouter{Routers: []net.IP{net.IP{192, 168, 0, 1}}})
To:
r := GetRouter(d.Options)
d.UpdateOption(OptRouter(net.IP{192, 168, 0, 1}, ...))
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Interface'd OptionCodes can print the correct human string.
It sucks because option codes are just a byte, but depending on where
you use them, they are interpreted differently. BSDP option codes !=
DHCP option codes.
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- Consolidate writing the option code and length to Options.Marshal
rather than doing it in each individual option.
- Use uio in marshaling code.
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option's codes and lengths were being parsed twice: once in ParseOption
and once in each option type's Parse implementation. Consolidate such
that it only happens once.
Additionally, only pass data to options that they should parse -- we
know the length before the Parse function is called, so the option only
gets to see the data it needs to see.
Also, use uio.Lexer to simplify parsing code in general. Easier to read
and reason about.
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* dhcpv4: Add OptRootPath
Adds a root path option that supports DHCPv4 option 17
* Add root path parsing to giant option parsing switch
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Added several DHCPv4 options
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