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Re: [libvirt] [PATCH 1/4] FreeBSD: implement virNetDevExists() and virNetDevSetName()



Not a "regular reviewer" (yet), but I figured I'd give this series a
look and provide some feedback...


On 01/04/2013 10:00 AM, Roman Bogorodskiy wrote:
> ---
>  src/util/virnetdev.c | 37 ++++++++++++++++++++++++++++++++++---
>  1 file changed, 34 insertions(+), 3 deletions(-)
> 
> diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c
> index 7ffd3c2..c7eeb50 100644
> --- a/src/util/virnetdev.c
> +++ b/src/util/virnetdev.c
> @@ -83,10 +83,32 @@ static int virNetDevSetupControl(const char *ifname,
>  {
>      return virNetDevSetupControlFull(ifname, ifr, AF_PACKET, SOCK_DGRAM);
>  }
> -#endif
> +#elif defined(__FreeBSD__)
> +static int virNetDevSetupControl(const char *ifname,
> +                                 struct ifreq *ifr)
> +{

Why not use virNetDevSetupControlFull() passing AF_LOCAL, SOCK_DGRAM?
Does the virSetInherit() not apply for FreeBSD?

> +    int s;
>  
> +    memset(ifr, 0, sizeof(*ifr));
>  
> -#if defined(SIOCGIFFLAGS) && defined(HAVE_STRUCT_IFREQ)
> +    if (virStrcpyStatic(ifr->ifr_name, ifname) == NULL) {
> +        virReportSystemError(ERANGE,
> +                             _("Network interface name '%s' is too long"),
> +                             ifname);
> +        return -1;
> +    }
> +
> +    if ((s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0) {
> +        virReportSystemError(errno, "%s",
> +                             _("Cannot open network interface control socket"));
> +        return -1;
> +    }
> +
> +    return s;
> +}
> +#endif
> +
> +#if defined(SIOCGIFFLAGS) && (defined(HAVE_STRUCT_IFREQ) || defined(__FreeBSD__))
>  /**
>   * virNetDevExists:
>   * @ifname
> @@ -105,7 +127,12 @@ int virNetDevExists(const char *ifname)
>          return -1;
>  
>      if (ioctl(fd, SIOCGIFFLAGS, &ifr)) {
> +        /* FreeBSD throws ENXIO when interface doesn't exist */
> +#if defined(__FreeBSD__)
> +        if (errno == ENXIO)
> +#else
>          if (errno == ENODEV)
> +#endif
>              ret = 0;
>          else
>              virReportSystemError(errno,
> @@ -459,7 +486,7 @@ int virNetDevSetNamespace(const char *ifname, pid_t pidInNs)
>      return rc;
>  }
>  
> -#if defined(SIOCSIFNAME) && defined(HAVE_STRUCT_IFREQ)
> +#if defined(SIOCSIFNAME) && (defined(HAVE_STRUCT_IFREQ) || defined(__FreeBSD__))
>  /**
>   * virNetDevSetName:
>   * @ifname: name of device
> @@ -478,12 +505,16 @@ int virNetDevSetName(const char* ifname, const char *newifname)
>      if ((fd = virNetDevSetupControl(ifname, &ifr)) < 0)
>          return -1;
>  
> +#if defined(__FreeBSD__)
> +    ifr.ifr_data = newifname;
> +#else
>      if (virStrcpyStatic(ifr.ifr_newname, newifname) == NULL) {
>          virReportSystemError(ERANGE,
>                               _("Network interface name '%s' is too long"),
>                               newifname);
>          goto cleanup;
>      }
> +#endif
>  
>      if (ioctl(fd, SIOCSIFNAME, &ifr)) {
>          virReportSystemError(errno,
> 


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