Currently NETNS_RUN_DIR is hardcoded and refers to /var/run/netns. However, some systems (e.g. Android) doesn't have /var which results in error attempts to create network namespaces on these systems. This change makes NETNS_RUN_DIR configurable at build time by allowing to pass environment variable to make command. Also, this change makes /etc/netns directory configurable through NETNS_ETC_DIR environment variable.
For example: ./configure && NETNS_RUN_DIR=/mnt/vendor/netns make Tested: verified that iproute2 with configuration mentioned above creates namespaces in /mnt/vendor/netns Signed-off-by: Pavel Maltsev <pav...@google.com> --- Makefile | 6 +++++- include/namespace.h | 5 +++++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/Makefile b/Makefile index b526d3b5..651d2a50 100644 --- a/Makefile +++ b/Makefile @@ -16,6 +16,8 @@ PREFIX?=/usr LIBDIR?=$(PREFIX)/lib SBINDIR?=/sbin CONFDIR?=/etc/iproute2 +NETNS_RUN_DIR?=/var/run/netns +NETNS_ETC_DIR?=/etc/netns DATADIR?=$(PREFIX)/share HDRDIR?=$(PREFIX)/include/iproute2 DOCDIR?=$(DATADIR)/doc/iproute2 @@ -34,7 +36,9 @@ ifneq ($(SHARED_LIBS),y) DEFINES+= -DNO_SHARED_LIBS endif -DEFINES+=-DCONFDIR=\"$(CONFDIR)\" +DEFINES+=-DCONFDIR=\"$(CONFDIR)\" \ + -DNETNS_RUN_DIR=\"$(NETNS_RUN_DIR)\" \ + -DNETNS_ETC_DIR=\"$(NETNS_ETC_DIR)\" #options for decnet ADDLIB+=dnet_ntop.o dnet_pton.o diff --git a/include/namespace.h b/include/namespace.h index aed7ce08..e47f9b5d 100644 --- a/include/namespace.h +++ b/include/namespace.h @@ -8,8 +8,13 @@ #include <sys/syscall.h> #include <errno.h> +#ifndef NETNS_RUN_DIR #define NETNS_RUN_DIR "/var/run/netns" +#endif + +#ifndef NETNS_ETC_DIR #define NETNS_ETC_DIR "/etc/netns" +#endif #ifndef CLONE_NEWNET #define CLONE_NEWNET 0x40000000 /* New network namespace (lo, device, names sockets, etc) */ -- 2.17.0.441.gb46fe60e1d-goog
