| Commit message (Collapse) | Author | Age | Files | Lines |
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fetch_string_setting() was subtracting one from the length of the
to-be-NUL-terminated buffer in order to obtain the length of the
unterminated buffer to be passed to fetch_setting(). This works
extremely well unless the length of the to-be-NUL-terminated buffer is
zero, at which point we end up giving fetch_setting() a buffer of
length -1UL, thereby inviting it to overwrite as much memory as it
wants...
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In particular, expose the system UUID as a setting ("smbios/uuid").
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Allow for settings to be described by something other than a DHCP option
tag if desirable. Currently used only for the MAC address setting.
Separate out fake DHCP packet creation code from dhcp.c to fakedhcp.c.
Remove notion of settings from dhcppkt.c.
Rationalise dhcp.c to use settings API only for final registration of the
DHCP options, rather than using {store,fetch}_setting throughout.
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It's probably easier to have a named setting for next-server, rather
than to explain to people why they need to pretend it is option 175.3.
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Convert DHCP option applicators in dns.c and iscsi.c to settings
applicators.
Kill off DHCP option applicators.
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Add the notion of the settings hierarchy, complete with
register/unregister routines.
Rename set->store and get->fetch to avoid naming conflicts with get/put
as used in reference counting.
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Add the concept of an abstract configuration setting, comprising a (DHCP)
tag value and an associated byte sequence.
Add the concept of a settings namespace.
Add functions for extracting string, IPv4 address, and signed and
unsigned integer values from configuration settings (analogous to
dhcp_snprintf(), dhcp_ipv4_option(), etc.).
Update functions for parsing and formatting named/typed options to work
with new settings API.
Update NVO commands and config UI to use new settings API.
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Allow setting names such as "ip:hex".
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Allow encapsulated options to be specified as e.g. "175.3". As a
side-effect, change the separator character for the type field from "." to
":"; for example, the IP address pseudo-option is now "175.3:ipv4".
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Add parse and display routines for 16-bit and 32-bit integer configuration
settings.
Add parse and display routines for hex-string configuration settings.
Assume hex-string as a configuration setting type if no type is explicitly
specified.
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show_setting() and related functions now return an "actual length" in the
style of snprintf(). This is to allow consumers to allocate buffers large
enough to hold the formatted setting.
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that we *can* place arrays in tables, which means we can force the
order within a table without having to resort to explicitly numbered
sections on everything.
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names.
Add "dev" pointer in struct net_device to tie network interfaces back to a
hardware device.
Force natural alignment of data types in __table() macros. This seems to
prevent gcc from taking the unilateral decision to occasionally increase
their alignment (which screws up the table packing).
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the option config UI.
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Introduce new {show,set,clear}_setting() that take a struct setting *
rather than a const char *.
set_setting() handles calling clear_setting() when appropriate, so that
individual setting types don't have to check for empty strings.
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memory" and "no space left for DHCP options"
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completely forgot I'd written ages ago.
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