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From 01ce61b8a0331a2f068ca2191bfb897b505c1b9d Mon Sep 17 00:00:00 2001
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From: Pavel Zhukov <pzhukov@redhat.com>
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Date: Thu, 21 Feb 2019 10:42:50 +0100
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Subject: [PATCH 20/26] Discover all hwaddress for xid uniqueness
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Cc: pzhukov@redhat.com
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---
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common/discover.c | 2 ++
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common/lpf.c | 27 ++++++++++++++++++++++-----
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includes/dhcpd.h | 3 +++
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3 files changed, 27 insertions(+), 5 deletions(-)
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diff --git a/common/discover.c b/common/discover.c
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index 056342c..e66e1c5 100644
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--- a/common/discover.c
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+++ b/common/discover.c
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@@ -648,6 +648,8 @@ discover_interfaces(int state) {
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interface_dereference(&tmp, MDL);
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tmp = interfaces; /* XXX */
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}
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+ if (tmp != NULL)
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+ try_hw_addr(tmp);
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if (dhcp_interface_discovery_hook) {
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(*dhcp_interface_discovery_hook)(tmp);
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diff --git a/common/lpf.c b/common/lpf.c
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index b732a86..a708a5d 100644
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--- a/common/lpf.c
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+++ b/common/lpf.c
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@@ -699,8 +699,22 @@ ioctl_get_ll(char *name)
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return sll;
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}
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+// define ?
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+void try_hw_addr(struct interface_info *info){
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+ get_hw_addr2(info);
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+};
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+
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void
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get_hw_addr(struct interface_info *info)
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+{
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+ if (get_hw_addr2(info) == ISC_R_NOTFOUND){
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+ log_fatal("Unsupported device type for \"%s\"",
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+ info->name);
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+ }
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+}
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+
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+isc_result_t
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+get_hw_addr2(struct interface_info *info)
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{
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struct hardware *hw = &info->hw_address;
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char *name = info->name;
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@@ -710,7 +724,8 @@ get_hw_addr(struct interface_info *info)
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int sll_allocated = 0;
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char *dup = NULL;
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char *colon = NULL;
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-
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+ isc_result_t result = ISC_R_SUCCESS;
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+
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if (getifaddrs(&ifaddrs) == -1)
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log_fatal("Failed to get interfaces");
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@@ -794,14 +809,16 @@ get_hw_addr(struct interface_info *info)
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hw->hbuf[4] = 0xef;
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break;
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#endif
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- default:
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- freeifaddrs(ifaddrs);
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- log_fatal("Unsupported device type %hu for \"%s\"",
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- sll->sll_hatype, name);
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+ default:
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+ log_error("Unsupported device type %hu for \"%s\"",
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+ sll->sll_hatype, name);
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+ result = ISC_R_NOTFOUND;
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+
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}
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if (sll_allocated)
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dfree(sll, MDL);
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freeifaddrs(ifaddrs);
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+ return result;
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}
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#endif
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diff --git a/includes/dhcpd.h b/includes/dhcpd.h
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index 0c1a0aa..635c510 100644
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--- a/includes/dhcpd.h
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+++ b/includes/dhcpd.h
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@@ -2637,7 +2637,10 @@ void print_dns_status (int, struct dhcp_ddns_cb *, isc_result_t);
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#endif
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const char *print_time(TIME);
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+
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void get_hw_addr(struct interface_info *info);
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+void try_hw_addr(struct interface_info *info);
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+isc_result_t get_hw_addr2(struct interface_info *info);
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char *buf_to_hex (const unsigned char *s, unsigned len,
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const char *file, int line);
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char *format_lease_id(const unsigned char *s, unsigned len, int format,
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--
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2.14.5
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