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Add --dhcp-option-pxe config.

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This acts almost exactly like --dhcp-option except that the defined option
is only sent when replying to PXE clients. More importantly, these
options are sent in reply PXE clients when dnsmasq in acting in PXE
proxy mode. In PXE proxy mode, the set of options sent is defined by
the PXE standard and the normal set of options is not sent. This config
allows arbitrary options in PXE-proxy replies. A typical use-case is
to send option 175 to iPXE. Thanks to Jason Berry for finding the
requirement for this.
This commit is contained in:
Simon Kelley
2024-12-05 17:07:40 +00:00
parent 5a1f2c577d
commit 7199531ff1
8 changed files with 126 additions and 49 deletions
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src/radv.c
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@@ -452,7 +452,7 @@ static void send_ra_alias(time_t now, int iface, char *iface_name, struct in6_ad
iface_enumerate(AF_LOCAL, &send_iface, (callback_t){.af_local=add_lla});
/* RDNSS, RFC 6106, use relevant DHCP6 options */
(void)option_filter(parm.tags, NULL, daemon->dhcp_opts6);
(void)option_filter(parm.tags, NULL, daemon->dhcp_opts6, 0);
for (opt_cfg = daemon->dhcp_opts6; opt_cfg; opt_cfg = opt_cfg->next)
{