[1/1] lapi: Add missing IFA_FLAGS

From: Petr Vorel <petr.vorel@gmail.com>

and use them in tst_netdevice.c. This fixes on older toolchains
(e.g. sourcery-arm from Buildroot):

tst_netdevice.c: In function 'modify_address':
tst_netdevice.c:218:44: error: 'IFA_FLAGS' undeclared (first use in this function)
  if (!tst_rtnl_add_attr(file, lineno, ctx, IFA_FLAGS, &addr_flags,

Fixes: bc2151a65 ("lib: Add helper functions for managing network interfaces")

Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
---
 configure.ac           |  1 +
 include/lapi/if_addr.h | 15 +++++++++++++++
 lib/tst_netdevice.c    |  2 ++
 3 files changed, 18 insertions(+)
 create mode 100644 include/lapi/if_addr.h

Hi!
> and use them in tst_netdevice.c. This fixes on older toolchains
> (e.g. sourcery-arm from Buildroot):
> 
> tst_netdevice.c: In function 'modify_address':
> tst_netdevice.c:218:44: error: 'IFA_FLAGS' undeclared (first use in this function)
>   if (!tst_rtnl_add_attr(file, lineno, ctx, IFA_FLAGS, &addr_flags,
> 
> Fixes: bc2151a65 ("lib: Add helper functions for managing network interfaces")
> 
> Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
> ---
>  configure.ac           |  1 +
>  include/lapi/if_addr.h | 15 +++++++++++++++
>  lib/tst_netdevice.c    |  2 ++
>  3 files changed, 18 insertions(+)
>  create mode 100644 include/lapi/if_addr.h
> 
> diff --git a/configure.ac b/configure.ac
> index 136d82d09..08a56f9ef 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -51,6 +51,7 @@ AC_CHECK_HEADERS_ONCE([ \
>      linux/dccp.h \
>      linux/fs.h \
>      linux/genetlink.h \
> +    linux/if_addr.h \
>      linux/if_alg.h \
>      linux/if_ether.h \
>      linux/if_packet.h \
> diff --git a/include/lapi/if_addr.h b/include/lapi/if_addr.h
> new file mode 100644
> index 000000000..c1acfe4fb
> --- /dev/null
> +++ b/include/lapi/if_addr.h
> @@ -0,0 +1,15 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/* Copyright (c) 2021 Petr Vorel <petr.vorel@gmail.com> */
> +
> +#ifndef LAPI_IF_ADDR_H__
> +# define LAPI_IF_ADDR_H__
> +
> +# ifdef HAVE_LINUX_IF_ADDR_H
> +#  include <linux/if_addr.h>

This file is usually included from the rtnetlink.h, shouldn't we rather
add lapi/rtnetlink.h that would include linux/rtnetlink.h and simply
adds the IFA_FLAGS definition if it's missing?

> +# endif
> +
> +#ifndef IFA_FLAGS
> +# define IFA_FLAGS 8
> +#endif
> +
> +#endif	/* LAPI_IF_ADDR_H__ */
> diff --git a/lib/tst_netdevice.c b/lib/tst_netdevice.c
> index 5ca523759..a95f19d35 100644
> --- a/lib/tst_netdevice.c
> +++ b/lib/tst_netdevice.c
> @@ -9,6 +9,8 @@
>  #include <linux/veth.h>
>  #include <sys/socket.h>
>  #include <net/if.h>
> +#include "lapi/if_addr.h"
> +
>  #define TST_NO_DEFAULT_MAIN
>  #include "tst_test.h"
>  #include "tst_rtnetlink.h"
> -- 
> 2.31.1
>

> Hi!
> > and use them in tst_netdevice.c. This fixes on older toolchains
> > (e.g. sourcery-arm from Buildroot):

> > tst_netdevice.c: In function 'modify_address':
> > tst_netdevice.c:218:44: error: 'IFA_FLAGS' undeclared (first use in this function)
> >   if (!tst_rtnl_add_attr(file, lineno, ctx, IFA_FLAGS, &addr_flags,

> > Fixes: bc2151a65 ("lib: Add helper functions for managing network interfaces")

> > Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
> > ---
> >  configure.ac           |  1 +
> >  include/lapi/if_addr.h | 15 +++++++++++++++
> >  lib/tst_netdevice.c    |  2 ++
> >  3 files changed, 18 insertions(+)
> >  create mode 100644 include/lapi/if_addr.h

> > diff --git a/configure.ac b/configure.ac
> > index 136d82d09..08a56f9ef 100644
> > --- a/configure.ac
> > +++ b/configure.ac
> > @@ -51,6 +51,7 @@ AC_CHECK_HEADERS_ONCE([ \
> >      linux/dccp.h \
> >      linux/fs.h \
> >      linux/genetlink.h \
> > +    linux/if_addr.h \
> >      linux/if_alg.h \
> >      linux/if_ether.h \
> >      linux/if_packet.h \
> > diff --git a/include/lapi/if_addr.h b/include/lapi/if_addr.h
> > new file mode 100644
> > index 000000000..c1acfe4fb
> > --- /dev/null
> > +++ b/include/lapi/if_addr.h
> > @@ -0,0 +1,15 @@
> > +// SPDX-License-Identifier: GPL-2.0-or-later
> > +/* Copyright (c) 2021 Petr Vorel <petr.vorel@gmail.com> */
> > +
> > +#ifndef LAPI_IF_ADDR_H__
> > +# define LAPI_IF_ADDR_H__
> > +
> > +# ifdef HAVE_LINUX_IF_ADDR_H
> > +#  include <linux/if_addr.h>

> This file is usually included from the rtnetlink.h, shouldn't we rather
> add lapi/rtnetlink.h that would include linux/rtnetlink.h and simply
> adds the IFA_FLAGS definition if it's missing?

I was thinking about it as well. Yep, that's probably better.
I'll send v2 as it's git freeze.

Kind regards,
Petr

> > +# endif
> > +
> > +#ifndef IFA_FLAGS
> > +# define IFA_FLAGS 8
> > +#endif
> > +
> > +#endif	/* LAPI_IF_ADDR_H__ */
> > diff --git a/lib/tst_netdevice.c b/lib/tst_netdevice.c
> > index 5ca523759..a95f19d35 100644
> > --- a/lib/tst_netdevice.c
> > +++ b/lib/tst_netdevice.c
> > @@ -9,6 +9,8 @@
> >  #include <linux/veth.h>
> >  #include <sys/socket.h>
> >  #include <net/if.h>
> > +#include "lapi/if_addr.h"
> > +
> >  #define TST_NO_DEFAULT_MAIN
> >  #include "tst_test.h"
> >  #include "tst_rtnetlink.h"
> > -- 
> > 2.31.1