- flags_added = (link->flags ^ flags) & flags;
- flags_removed = (link->flags ^ flags) & link->flags;
- generic_flags = ~(IFF_UP | IFF_LOWER_UP | IFF_DORMANT | IFF_DEBUG |
- IFF_MULTICAST | IFF_BROADCAST | IFF_PROMISC |
- IFF_NOARP | IFF_MASTER | IFF_SLAVE | IFF_RUNNING);
-
- if (flags_added & IFF_UP)
- log_debug_link(link, "link is up");
- else if (flags_removed & IFF_UP)
- log_debug_link(link, "link is down");
-
- if (flags_added & IFF_LOWER_UP)
- log_debug_link(link, "link is lower up");
- else if (flags_removed & IFF_LOWER_UP)
- log_debug_link(link, "link is lower down");
-
- if (flags_added & IFF_DORMANT)
- log_debug_link(link, "link is dormant");
- else if (flags_removed & IFF_DORMANT)
- log_debug_link(link, "link is not dormant");
-
- if (flags_added & IFF_DEBUG)
- log_debug_link(link, "debugging enabled in the kernel");
- else if (flags_removed & IFF_DEBUG)
- log_debug_link(link, "debugging disabled in the kernel");
-
- if (flags_added & IFF_MULTICAST)
- log_debug_link(link, "multicast enabled");
- else if (flags_removed & IFF_MULTICAST)
- log_debug_link(link, "multicast disabled");
-
- if (flags_added & IFF_BROADCAST)
- log_debug_link(link, "broadcast enabled");
- else if (flags_removed & IFF_BROADCAST)
- log_debug_link(link, "broadcast disabled");
-
- if (flags_added & IFF_PROMISC)
- log_debug_link(link, "promiscuous mode enabled");
- else if (flags_removed & IFF_PROMISC)
- log_debug_link(link, "promiscuous mode disabled");
-
- if (flags_added & IFF_NOARP)
- log_debug_link(link, "ARP protocol disabled");
- else if (flags_removed & IFF_NOARP)
- log_debug_link(link, "ARP protocol enabled");
-
- if (flags_added & IFF_MASTER)
- log_debug_link(link, "link is master");
- else if (flags_removed & IFF_MASTER)
- log_debug_link(link, "link is no longer master");
-
- if (flags_added & IFF_SLAVE)
- log_debug_link(link, "link is slave");
- else if (flags_removed & IFF_SLAVE)
- log_debug_link(link, "link is no longer slave");
-
- /* link flags are currently at most 18 bits, let's default to printing 20 */
- if (flags_added & generic_flags)
- log_debug_link(link, "unknown link flags gained: %#.5x (ignoring)",
- flags_added & generic_flags);
-
- if (flags_removed & generic_flags)
- log_debug_link(link, "unknown link flags lost: %#.5x (ignoring)",
- flags_removed & generic_flags);
-
- carrier_gained = !link_has_carrier(link->flags, link->operstate) &&
+ if (link->flags != flags) {
+ log_debug_link(link, "flags change:%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+ FLAG_STRING("LOOPBACK", IFF_LOOPBACK, link->flags, flags),
+ FLAG_STRING("MASTER", IFF_MASTER, link->flags, flags),
+ FLAG_STRING("SLAVE", IFF_SLAVE, link->flags, flags),
+ FLAG_STRING("UP", IFF_UP, link->flags, flags),
+ FLAG_STRING("DORMANT", IFF_DORMANT, link->flags, flags),
+ FLAG_STRING("LOWER_UP", IFF_LOWER_UP, link->flags, flags),
+ FLAG_STRING("RUNNING", IFF_RUNNING, link->flags, flags),
+ FLAG_STRING("MULTICAST", IFF_MULTICAST, link->flags, flags),
+ FLAG_STRING("BROADCAST", IFF_BROADCAST, link->flags, flags),
+ FLAG_STRING("POINTOPOINT", IFF_POINTOPOINT, link->flags, flags),
+ FLAG_STRING("PROMISC", IFF_PROMISC, link->flags, flags),
+ FLAG_STRING("ALLMULTI", IFF_ALLMULTI, link->flags, flags),
+ FLAG_STRING("PORTSEL", IFF_PORTSEL, link->flags, flags),
+ FLAG_STRING("AUTOMEDIA", IFF_AUTOMEDIA, link->flags, flags),
+ FLAG_STRING("DYNAMIC", IFF_DYNAMIC, link->flags, flags),
+ FLAG_STRING("NOARP", IFF_NOARP, link->flags, flags),
+ FLAG_STRING("NOTRAILERS", IFF_NOTRAILERS, link->flags, flags),
+ FLAG_STRING("DEBUG", IFF_DEBUG, link->flags, flags),
+ FLAG_STRING("ECHO", IFF_ECHO, link->flags, flags));
+
+ unknown_flags = ~(IFF_LOOPBACK | IFF_MASTER | IFF_SLAVE | IFF_UP |
+ IFF_DORMANT | IFF_LOWER_UP | IFF_RUNNING |
+ IFF_MULTICAST | IFF_BROADCAST | IFF_POINTOPOINT |
+ IFF_PROMISC | IFF_ALLMULTI | IFF_PORTSEL |
+ IFF_AUTOMEDIA | IFF_DYNAMIC | IFF_NOARP |
+ IFF_NOTRAILERS | IFF_DEBUG | IFF_ECHO);
+ unknown_flags_added = ((link->flags ^ flags) & flags & unknown_flags);
+ unknown_flags_removed = ((link->flags ^ flags) & link->flags & unknown_flags);
+
+ /* link flags are currently at most 18 bits, let's align to printing 20 */
+ if (unknown_flags_added)
+ log_debug_link(link, "unknown link flags gained: %#.5x (ignoring)",
+ unknown_flags_added);
+
+ if (unknown_flags_removed)
+ log_debug_link(link, "unknown link flags lost: %#.5x (ignoring)",
+ unknown_flags_removed);
+ }
+
+ carrier_gained = !link_has_carrier(link->flags, link->kernel_operstate) &&