IIRC we added similar checks to cman when cman was configuring corosync.
It might make sense to just skim all over cman{pre,}config and verify
that we didn´t miss other sanity checks.
Fabio
On 11/10/2014 5:53 PM, Jan Friesse wrote:
> When using multiple interfaces, it's necessary to use different
> multicast address/port pair for each interface to make
> rrp work correctly. This is now checked in parser.
>
> Signed-off-by: Jan Friesse <jfriesse@xxxxxxxxxx>
> ---
> exec/totemconfig.c | 19 ++++++++++++++++++-
> man/corosync.conf.5 | 4 ++++
> 2 files changed, 22 insertions(+), 1 deletions(-)
>
> diff --git a/exec/totemconfig.c b/exec/totemconfig.c
> index cab21fb..5d6eebc 100644
> --- a/exec/totemconfig.c
> +++ b/exec/totemconfig.c
> @@ -474,8 +474,9 @@ int totem_config_validate (
> static char local_error_reason[512];
> char parse_error[512];
> const char *error_reason = local_error_reason;
> - int i;
> + int i, j;
> unsigned int interface_max = INTERFACE_MAX;
> + unsigned int port1, port2;
>
> if (totem_config->interface_count == 0) {
> error_reason = "No interfaces defined";
> @@ -535,6 +536,22 @@ int totem_config_validate (
> error_reason = "Not all bind address belong to the same IP family";
> goto parse_error;
> }
> +
> + /*
> + * Ensure mcast address/port differs
> + */
> + if (totem_config->transport_number == TOTEM_TRANSPORT_UDP) {
> + for (j = i + 1; j < totem_config->interface_count; j++) {
> + port1 = totem_config->interfaces[i].ip_port;
> + port2 = totem_config->interfaces[j].ip_port;
> + if (totemip_equal(&totem_config->interfaces[i].mcast_addr,
> + &totem_config->interfaces[j].mcast_addr) &&
> + (((port1 > port2 ? port1 : port2) - (port1 < port2 ? port1 : port2)) <= 1)) {
> + error_reason = "Interfaces multicast address/port pair must differ";
> + goto parse_error;
> + }
> + }
> + }
> }
>
> if (totem_config->version != 2) {
> diff --git a/man/corosync.conf.5 b/man/corosync.conf.5
> index a2c8000..8bafae3 100644
> --- a/man/corosync.conf.5
> +++ b/man/corosync.conf.5
> @@ -218,6 +218,10 @@ If only one interface directive is specified, none is automatically chosen.
> If multiple interface directives are specified, only active or passive may
> be chosen.
>
> +When using multiple interfaces, make sure to use different multicast
> +address/port (port for same address must differ by at least two) pair
> +for each interface (this is checked by parser) to make rrp works.
> +
> .TP
> netmtu
> This specifies the network maximum transmit unit. To set this value beyond
>
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