The umb(4) driver provides support for USB MBIM (Mobile Broadband
Interface Model) devices.
MBIM devices establish connections via cellular networks such as GPRS,
UMTS, and LTE. They appear as a regular point-to-point network interface, transporting raw IP frames.
Required configuration parameters like PIN and APN have to be set with
umbctl(8), a new tool specific to this driver. The IP address is configured
automatically; the default route and DNS server information have to be set
separately.
The driver is not fully functional yet, it is therefore still marked as
experimental and disabled by default. Any help welcome to complete it!
Tested on NetBSD/amd64, with a Sierra Wireless EM7345 LTE modem on a Lenovo
ThinkPad T440s. No functional change expected otherwise.
be interested in. Let individual commands decide if ioctl(DIOCMWEDGES)
should be done. I was conservative and set the flag on any command
that might create/modify/delete partitions in any way.
Unportable left shift reported with MKSANITIZER=yes USE_SANITIZER=undefined:
# ifconfig
alc0: flags=0x8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ec_capabilities=3<VLAN_MTU,VLAN_HWTAGGING>
ec_enabled=0
address: xx:xx:xx:xx:xx:xx
/public/src.git/sbin/ifconfig/af_inet.c:102:34: runtime error: left shift of 16777215 by 8 places cannot be represented in type 'int'
inet 192.168.0.38/24 broadcast 192.168.0.255 flags 0x0
inet6 xxxx::xxxx:xxxx:xxxx:xxx%alc0/64 flags 0x0 scopeid 0x1
lo0: flags=0x8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33624
inet 127.0.0.1/8 flags 0x0
inet6 ::1/128 flags 0x20<NODAD>
inet6 fe80::1%lo0/64 flags 0x0 scopeid 0x2
Change shifting left 1 to shifting 1U. This corrects the issue.
if (cidr < 32) { /* more than 1 bit in mask */
/* check for non-contig netmask */
if ((mask ^ (((1 << cidr) - 1) << (32 - cidr))) != 0) // <- here
return -1; /* noncontig, no pfxlen */
}
Solution suggested by <uwe>
Sponsored by <The NetBSD Foundation>
This avoids the stupid null deref I added a couple of commits
ago (on bad usage) and also simplifies the rest of the routine
which no longer needs to check the arg count nearly as much.
Thanks to Alexander Nasonov for finding the null deref bug.
ispell also says that we should s/parseable/parsable/ but I'm
not sure about that one, so I left it.
I also left a correct spelling that no-one has bothered to mangle!
nanoseconds, 9 digits) the kernel happens to send in the timestamps
in log messages.
Output (numeric) timestamps (when produced) are unchanged and always
in microseconds (for now).
roy