Sorry, my bad. I agree w/ your recommendation then - 1) stuff it in ifalias(or create a new alias if net_device::ifalias is used for snmp etc). But how do we consume it? 1.1) spit it out via sysfs? But Doc/sysfsrules.txt says "Accessing /sys/class/net/eth0/device is a bug in the application" Chetan > -----Original Message----- > From: Stephen Hemminger [mailto:shemminger@xxxxxxxxxx] > Sent: August 26, 2010 11:22 AM > To: Loke, Chetan > Cc: Matt Domsch; Narendra_K@xxxxxxxx; netdev@xxxxxxxxxxxxxxx; > Charles_Rose@xxxxxxxx; Jordan_Hargrave@xxxxxxxx; linux- > pci@xxxxxxxxxxxxxxx; linux-hotplug@xxxxxxxxxxxxxxx > Subject: Re: [PATCH] Add firmware label support to iproute2 > > On Thu, 26 Aug 2010 11:17:51 -0400 > "Loke, Chetan" <Chetan.Loke@xxxxxxxxxxxx> wrote: > > > What if we extend 'IFNAMSIZ'(beyond 16 chars. Older apps don't need > to > > worry because they have been working w/ 16 chars anyways) and also > get > > ifalias to work in udev(Or is ifalias a bad idea?)? > > > > Chetan > > > That is non-starter for the ioctl() style interface. > > struct ifreq { > #define IFHWADDRLEN 6 > union > { > char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" > */ > } ifr_ifrn; > > union { > struct sockaddr ifru_addr; > struct sockaddr ifru_dstaddr; > struct sockaddr ifru_broadaddr; > struct sockaddr ifru_netmask; > struct sockaddr ifru_hwaddr; > short ifru_flags; > int ifru_ivalue; > int ifru_mtu; > struct ifmap ifru_map; > char ifru_slave[IFNAMSIZ]; /* Just fits the size */ > char ifru_newname[IFNAMSIZ]; > void __user * ifru_data; > struct if_settings ifru_settings; > } ifr_ifru; > }; > > Applications do: > strncpy(ifr.ifr_name, "my name", IFNAMSIZ); > ioctl(fd, SIOCGHWADDR, &ifr) -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
