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Date: Mon, 10 Sep 2018 13:52:06 +0200
From: Tobias Jungel <tobias.jungel@...dn.de>
To: Stephen Hemminger <stephen@...workplumber.org>,
netdev@...r.kernel.org
Subject: Re: [PATCH iproute2 3/3] bridge: fix vlan show formatting
Hi Stephen,
I just have seen this patch, hence please ignore the "bridge: Correct
json output" I sent. This one solves the issue in a way more elegant
manor.
I tested the JSON output in this series and it works as intended.
Thanks
Reviewed-by: Tobias Jungel <tobias.jungel@...dn.de>
On Thu, 2018-09-06 at 16:30 +0100, Stephen Hemminger wrote:
> The output of vlan show was broken previous change to use json_print.
> Clean the code up and return to original format.
>
> Note: the JSON syntax has changed to make the bridge vlan
> show more like other outputs (e.g. ip -j li show).
>
> Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
> ---
> bridge/br_common.h | 2 +-
> bridge/link.c | 6 ++---
> bridge/vlan.c | 61 +++++++++++++++++++++++++++-----------------
> --
> 3 files changed, 40 insertions(+), 29 deletions(-)
>
> diff --git a/bridge/br_common.h b/bridge/br_common.h
> index 2f1cb8fd9f3d..69665fde32b6 100644
> --- a/bridge/br_common.h
> +++ b/bridge/br_common.h
> @@ -6,7 +6,7 @@
> #define MDB_RTR_RTA(r) \
> ((struct rtattr *)(((char *)(r)) +
> RTA_ALIGN(sizeof(__u32))))
>
> -extern void print_vlan_info(FILE *fp, struct rtattr *tb);
> +extern void print_vlan_info(struct rtattr *tb, int ifindex);
nitpick, this does not apply to master.
> extern int print_linkinfo(const struct sockaddr_nl *who,
> struct nlmsghdr *n,
> void *arg);
> diff --git a/bridge/link.c b/bridge/link.c
> index 8d89aca2e638..a5ee9a5c58e6 100644
> --- a/bridge/link.c
> +++ b/bridge/link.c
> @@ -161,7 +161,7 @@ static void print_protinfo(FILE *fp, struct
> rtattr *attr)
> * This is reported by HW devices that have some bridging
> * capabilities.
> */
> -static void print_af_spec(FILE *fp, struct rtattr *attr)
> +static void print_af_spec(struct rtattr *attr, int ifindex)
> {
> struct rtattr *aftb[IFLA_BRIDGE_MAX+1];
>
> @@ -174,7 +174,7 @@ static void print_af_spec(FILE *fp, struct rtattr
> *attr)
> return;
>
> if (aftb[IFLA_BRIDGE_VLAN_INFO])
> - print_vlan_info(fp, aftb[IFLA_BRIDGE_VLAN_INFO]);
> + print_vlan_info(aftb[IFLA_BRIDGE_VLAN_INFO], ifindex);
> }
>
> int print_linkinfo(const struct sockaddr_nl *who,
> @@ -229,7 +229,7 @@ int print_linkinfo(const struct sockaddr_nl *who,
> print_protinfo(fp, tb[IFLA_PROTINFO]);
>
> if (tb[IFLA_AF_SPEC])
> - print_af_spec(fp, tb[IFLA_AF_SPEC]);
> + print_af_spec(tb[IFLA_AF_SPEC], ifi->ifi_index);
>
> print_string(PRINT_FP, NULL, "%s", "\n");
> close_json_object();
> diff --git a/bridge/vlan.c b/bridge/vlan.c
> index 19a36b804069..bdce55ae4e14 100644
> --- a/bridge/vlan.c
> +++ b/bridge/vlan.c
> @@ -252,10 +252,18 @@ static int filter_vlan_check(__u16 vid, __u16
> flags)
> return 1;
> }
>
> -static void print_vlan_port(FILE *fp, int ifi_index)
> +static void open_vlan_port(int ifi_index)
> {
> - print_string(PRINT_ANY, NULL, "%s",
> + open_json_object(NULL);
> + print_string(PRINT_ANY, "ifname", "%s",
> ll_index_to_name(ifi_index));
> + open_json_array(PRINT_JSON, "vlans");
> +}
> +
> +static void close_vlan_port(void)
> +{
> + close_json_array(PRINT_JSON, NULL);
> + close_json_object();
> }
>
> static void print_range(const char *name, __u16 start, __u16 id)
> @@ -278,7 +286,7 @@ static void print_vlan_tunnel_info(FILE *fp,
> struct rtattr *tb, int ifindex)
> __u32 last_tunid_start = 0;
>
> if (!filter_vlan)
> - print_vlan_port(fp, ifindex);
> + open_vlan_port(ifindex);
>
> open_json_array(PRINT_JSON, "tunnel");
> for (i = RTA_DATA(list); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
> {
> @@ -323,18 +331,20 @@ static void print_vlan_tunnel_info(FILE *fp,
> struct rtattr *tb, int ifindex)
> continue;
>
> if (filter_vlan)
> - print_vlan_port(fp, ifindex);
> + open_vlan_port(ifindex);
>
> open_json_object(NULL);
> print_range("vlan", last_vid_start, tunnel_vid);
> print_range("tunid", last_tunid_start, tunnel_id);
> close_json_object();
>
> - if (!is_json_context())
> - fprintf(fp, "\n");
> -
> + print_string(PRINT_FP, NULL, "%s", _SL_);
> + if (filter_vlan)
> + close_vlan_port();
> }
> - close_json_array(PRINT_JSON, NULL);
> +
> + if (!filter_vlan)
> + close_vlan_port();
> }
>
> static int print_vlan_tunnel(const struct sockaddr_nl *who,
> @@ -421,8 +431,8 @@ static int print_vlan(const struct sockaddr_nl
> *who,
> return 0;
> }
>
> - print_vlan_port(fp, ifm->ifi_index);
> - print_vlan_info(fp, tb[IFLA_AF_SPEC]);
> + print_vlan_info(tb[IFLA_AF_SPEC], ifm->ifi_index);
> + print_string(PRINT_FP, NULL, "%s", _SL_);
>
> fflush(fp);
> return 0;
> @@ -430,11 +440,16 @@ static int print_vlan(const struct sockaddr_nl
> *who,
>
> static void print_vlan_flags(__u16 flags)
> {
> + if (flags == 0)
> + return;
> +
> + open_json_array(PRINT_JSON, "flags");
> if (flags & BRIDGE_VLAN_INFO_PVID)
> - print_null(PRINT_ANY, "pvid", " %s", "PVID");
> + print_string(PRINT_ANY, NULL, " %s", "PVID");
>
> if (flags & BRIDGE_VLAN_INFO_UNTAGGED)
> - print_null(PRINT_ANY, "untagged", " %s", "untagged");
> + print_string(PRINT_ANY, NULL, " %s", "Egress
> Untagged");
> + close_json_array(PRINT_JSON, NULL);
> }
>
> static void print_one_vlan_stats(const struct bridge_vlan_xstats
> *vstats)
> @@ -461,6 +476,7 @@ static void print_vlan_stats_attr(struct rtattr
> *attr, int ifindex)
> {
> struct rtattr *brtb[LINK_XSTATS_TYPE_MAX+1];
> struct rtattr *i, *list;
> + const char *ifname;
> int rem;
>
> parse_rtattr(brtb, LINK_XSTATS_TYPE_MAX, RTA_DATA(attr),
> @@ -471,13 +487,12 @@ static void print_vlan_stats_attr(struct rtattr
> *attr, int ifindex)
> list = brtb[LINK_XSTATS_TYPE_BRIDGE];
> rem = RTA_PAYLOAD(list);
>
> - open_json_object(NULL);
> + ifname = ll_index_to_name(ifindex);
> + open_json_object(ifname);
>
> - print_color_string(PRINT_ANY, COLOR_IFNAME,
> - "dev", "%-16s",
> - ll_index_to_name(ifindex));
> + print_color_string(PRINT_FP, COLOR_IFNAME,
> + NULL, "%-16s", ifname);
>
> - open_json_array(PRINT_JSON, "xstats");
> for (i = RTA_DATA(list); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
> {
> const struct bridge_vlan_xstats *vstats = RTA_DATA(i);
>
> @@ -494,7 +509,6 @@ static void print_vlan_stats_attr(struct rtattr
> *attr, int ifindex)
>
> print_one_vlan_stats(vstats);
> }
> - close_json_array(PRINT_ANY, "\n");
> close_json_object();
>
> }
> @@ -623,16 +637,13 @@ static int vlan_show(int argc, char **argv)
> return 0;
> }
>
> -void print_vlan_info(FILE *fp, struct rtattr *tb)
> +void print_vlan_info(struct rtattr *tb, int ifindex)
> {
> struct rtattr *i, *list = tb;
> int rem = RTA_PAYLOAD(list);
> __u16 last_vid_start = 0;
>
> - if (!is_json_context())
> - fprintf(fp, "%s", _SL_);
> -
> - open_json_array(PRINT_JSON, "vlan");
> + open_vlan_port(ifindex);
>
> for (i = RTA_DATA(list); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
> {
> struct bridge_vlan_info *vinfo;
> @@ -656,9 +667,9 @@ void print_vlan_info(FILE *fp, struct rtattr *tb)
>
> print_vlan_flags(vinfo->flags);
> close_json_object();
> + print_string(PRINT_FP, NULL, "%s", _SL_);
> }
> -
> - close_json_array(PRINT_ANY, "\n");
> + close_vlan_port();
> }
>
> int do_vlan(int argc, char **argv)
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