[libvirt] [PATCH 0/8] Make NSS module lookup by libvirt domain names too

So far, the NSS module relies on guests providing hostnames during DHCP transaction, because if they do it's recorded in a json file that NSS module consults when doing the hostname translation. But there are few cases where this is not enough: some system (e.g. old RHEL6) don't provide hostname at all. If that's the case we can maintain a separate file $bridge.macs where we would keep a list of pairs <domain, mac address list>. Thus next time when doing hostname translation we can look up MAC address list for given domain, and then lookup the MAC <-> IP mapping in $bridge.status. It's a bit clunky, but it's our best shot. Michal Privoznik (8): network: Don't unlock non-locked network driver nssmock: Prefer free() over VIR_FREE() virstring: Introduce virStringListAdd virstring: Introduce virStringListRemove util: Introduce virFileRewriteStr util: Introduce virMACMap module network: Track MAC address map nss: Lookup by libvirt domain names too cfg.mk | 2 +- docs/nss.html.in | 13 +- po/POTFILES.in | 1 + src/Makefile.am | 9 + src/conf/network_conf.h | 4 + src/conf/virsecretobj.c | 20 +- src/libvirt_private.syms | 12 ++ src/network/bridge_driver.c | 95 ++++++++- src/network/leaseshelper.c | 14 +- src/util/virfile.c | 24 ++- src/util/virfile.h | 7 +- src/util/virmacmap.c | 399 +++++++++++++++++++++++++++++++++++ src/util/virmacmap.h | 48 +++++ src/util/virstring.c | 87 ++++++++ src/util/virstring.h | 6 + src/util/virxml.c | 4 +- tests/Makefile.am | 14 ++ tests/nssdata/virbr0.macs | 23 ++ tests/nssdata/virbr0.status | 5 + tests/nssdata/virbr1.macs | 21 ++ tests/nssdata/virbr1.status | 5 + tests/nssmock.c | 25 ++- tests/nsstest.c | 2 + tests/virmacmapmock.c | 29 +++ tests/virmacmaptest.c | 232 ++++++++++++++++++++ tests/virmacmaptestdata/complex.json | 45 ++++ tests/virmacmaptestdata/empty.json | 3 + tests/virmacmaptestdata/simple.json | 8 + tests/virmacmaptestdata/simple2.json | 16 ++ tests/virstringtest.c | 80 +++++++ tools/nss/libvirt_nss.c | 173 +++++++++++---- 31 files changed, 1340 insertions(+), 86 deletions(-) create mode 100644 src/util/virmacmap.c create mode 100644 src/util/virmacmap.h create mode 100644 tests/nssdata/virbr0.macs create mode 100644 tests/nssdata/virbr1.macs create mode 100644 tests/virmacmapmock.c create mode 100644 tests/virmacmaptest.c create mode 100644 tests/virmacmaptestdata/complex.json create mode 100644 tests/virmacmaptestdata/empty.json create mode 100644 tests/virmacmaptestdata/simple.json create mode 100644 tests/virmacmaptestdata/simple2.json -- 2.8.4