In this commit we introduce the ability to set and get
MTU for UDP media and bearer.
For set and get properties such as tolerance, window and priority,
we already do:
$ tipc media set PPROPERTY media MEDIA
$ tipc media get PPROPERTY media MEDIA
$ tipc bearer set OPTION media MEDIA ARGS
$ tipc bearer get [OPTION] media MEDIA ARGS
The same has been extended for MTU, with an exception to support
only media type UDP.
Acked-by: Jon Maloy <jon.ma...@ericsson.com>
Signed-off-by: GhantaKrishnamurthy MohanKrishna
<mohan.krishna.ghanta.krishnamur...@ericsson.com>
---
tipc/bearer.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++---------
tipc/media.c | 24 ++++++++++++++++++++++--
2 files changed, 68 insertions(+), 11 deletions(-)
diff --git a/tipc/bearer.c b/tipc/bearer.c
index 0d8457015062..05dc84aa8ded 100644
--- a/tipc/bearer.c
+++ b/tipc/bearer.c
@@ -42,7 +42,8 @@ static void _print_bearer_opts(void)
"OPTIONS\n"
" priority - Bearer link priority\n"
" tolerance - Bearer link tolerance\n"
- " window - Bearer link window\n");
+ " window - Bearer link window\n"
+ " mtu - Bearer link mtu\n");
}
void print_bearer_media(void)
@@ -194,6 +195,21 @@ static int nl_add_udp_enable_opts(struct nlmsghdr *nlh,
struct opt *opts,
return 0;
}
+static char *cmd_get_media_type(const struct cmd *cmd, struct cmdl *cmdl,
+ struct opt *opts)
+{
+ struct opt *opt = get_opt(opts, "media");
+
+ if (!opt) {
+ if (help_flag)
+ (cmd->help)(cmdl);
+ else
+ fprintf(stderr, "error, missing bearer media\n");
+ return NULL;
+ }
+ return opt->val;
+}
+
static int nl_add_bearer_name(struct nlmsghdr *nlh, const struct cmd *cmd,
struct cmdl *cmdl, struct opt *opts,
const struct tipc_sup_media *sup_media)
@@ -217,15 +233,8 @@ int cmd_get_unique_bearer_name(const struct cmd *cmd,
struct cmdl *cmdl,
struct opt *opt;
const struct tipc_sup_media *entry;
-
- if (!(opt = get_opt(opts, "media"))) {
- if (help_flag)
- (cmd->help)(cmdl);
- else
- fprintf(stderr, "error, missing bearer media\n");
+ if (!(media = cmd_get_media_type(cmd, cmdl, opts)))
return -EINVAL;
- }
- media = opt->val;
for (entry = sup_media; entry->media; entry++) {
if (strcmp(entry->media, media))
@@ -559,6 +568,8 @@ static int cmd_bearer_set_prop(struct nlmsghdr *nlh, const
struct cmd *cmd,
prop = TIPC_NLA_PROP_TOL;
else if ((strcmp(cmd->cmd, "window") == 0))
prop = TIPC_NLA_PROP_WIN;
+ else if ((strcmp(cmd->cmd, "mtu") == 0))
+ prop = TIPC_NLA_PROP_MTU;
else
return -EINVAL;
@@ -571,6 +582,17 @@ static int cmd_bearer_set_prop(struct nlmsghdr *nlh, const
struct cmd *cmd,
if (parse_opts(opts, cmdl) < 0)
return -EINVAL;
+ if (prop == TIPC_NLA_PROP_MTU) {
+ char *media = cmd_get_media_type(cmd, cmdl, opts);
+
+ if (!media)
+ return -EINVAL;
+ else if (strcmp(media, "udp")) {
+ fprintf(stderr, "error, not supported for media\n");
+ return -EINVAL;
+ }
+ }
+
if (!(nlh = msg_init(buf, TIPC_NL_BEARER_SET))) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
@@ -597,6 +619,7 @@ static int cmd_bearer_set(struct nlmsghdr *nlh, const
struct cmd *cmd,
{ "priority", cmd_bearer_set_prop, cmd_bearer_set_help },
{ "tolerance", cmd_bearer_set_prop, cmd_bearer_set_help },
{ "window", cmd_bearer_set_prop, cmd_bearer_set_help },
+ { "mtu", cmd_bearer_set_prop, cmd_bearer_set_help },
{ NULL }
};
@@ -877,12 +900,25 @@ static int cmd_bearer_get_prop(struct nlmsghdr *nlh,
const struct cmd *cmd,
prop = TIPC_NLA_PROP_TOL;
else if ((strcmp(cmd->cmd, "window") == 0))
prop = TIPC_NLA_PROP_WIN;
+ else if ((strcmp(cmd->cmd, "mtu") == 0))
+ prop = TIPC_NLA_PROP_MTU;
else
return -EINVAL;
if (parse_opts(opts, cmdl) < 0)
return -EINVAL;
+ if (prop == TIPC_NLA_PROP_MTU) {
+ char *media = cmd_get_media_type(cmd, cmdl, opts);
+
+ if (!media)
+ return -EINVAL;
+ else if (strcmp(media, "udp")) {
+ fprintf(stderr, "error, not supported for media\n");
+ return -EINVAL;
+ }
+ }
+
if (!(nlh = msg_init(buf, TIPC_NL_BEARER_GET))) {
fprintf(stderr, "error, message initialisation failed\n");
return -1;
@@ -904,6 +940,7 @@ static int cmd_bearer_get(struct nlmsghdr *nlh, const
struct cmd *cmd,
{ "priority", cmd_bearer_get_prop, cmd_bearer_get_help },
{ "tolerance", cmd_bearer_get_prop, cmd_bearer_get_help },
{ "window", cmd_bearer_get_prop, cmd_bearer_get_help },
+ { "mtu", cmd_bearer_get_prop, cmd_bearer_get_help },
{ "media", cmd_bearer_get_media, cmd_bearer_get_help },
{ NULL }
};
diff --git a/tipc/media.c b/tipc/media.c
index 6e10c7e5d8e6..969ef6578b3b 100644
--- a/tipc/media.c
+++ b/tipc/media.c
@@ -103,6 +103,8 @@ static int cmd_media_get_prop(struct nlmsghdr *nlh, const
struct cmd *cmd,
prop = TIPC_NLA_PROP_TOL;
else if ((strcmp(cmd->cmd, "window") == 0))
prop = TIPC_NLA_PROP_WIN;
+ else if ((strcmp(cmd->cmd, "mtu") == 0))
+ prop = TIPC_NLA_PROP_MTU;
else
return -EINVAL;
@@ -123,6 +125,12 @@ static int cmd_media_get_prop(struct nlmsghdr *nlh, const
struct cmd *cmd,
fprintf(stderr, "error, missing media\n");
return -EINVAL;
}
+
+ if ((prop == TIPC_NLA_PROP_MTU) &&
+ (strcmp(opt->val, "udp"))) {
+ fprintf(stderr, "error, not supported for media\n");
+ return -EINVAL;
+ }
nest = mnl_attr_nest_start(nlh, TIPC_NLA_MEDIA);
mnl_attr_put_strz(nlh, TIPC_NLA_MEDIA_NAME, opt->val);
mnl_attr_nest_end(nlh, nest);
@@ -136,7 +144,8 @@ static void cmd_media_get_help(struct cmdl *cmdl)
"PROPERTIES\n"
" tolerance - Get media tolerance\n"
" priority - Get media priority\n"
- " window - Get media window\n",
+ " window - Get media window\n"
+ " mtu - Get media mtu\n",
cmdl->argv[0]);
}
@@ -147,6 +156,7 @@ static int cmd_media_get(struct nlmsghdr *nlh, const struct
cmd *cmd,
{ "priority", cmd_media_get_prop, cmd_media_get_help },
{ "tolerance", cmd_media_get_prop, cmd_media_get_help },
{ "window", cmd_media_get_prop, cmd_media_get_help },
+ { "mtu", cmd_media_get_prop, cmd_media_get_help },
{ NULL }
};
@@ -159,7 +169,8 @@ static void cmd_media_set_help(struct cmdl *cmdl)
"PROPERTIES\n"
" tolerance TOLERANCE - Set media tolerance\n"
" priority PRIORITY - Set media priority\n"
- " window WINDOW - Set media window\n",
+ " window WINDOW - Set media window\n"
+ " mtu MTU - Set media mtu\n",
cmdl->argv[0]);
}
@@ -183,6 +194,8 @@ static int cmd_media_set_prop(struct nlmsghdr *nlh, const
struct cmd *cmd,
prop = TIPC_NLA_PROP_TOL;
else if ((strcmp(cmd->cmd, "window") == 0))
prop = TIPC_NLA_PROP_WIN;
+ else if ((strcmp(cmd->cmd, "mtu") == 0))
+ prop = TIPC_NLA_PROP_MTU;
else
return -EINVAL;
@@ -210,6 +223,12 @@ static int cmd_media_set_prop(struct nlmsghdr *nlh, const
struct cmd *cmd,
fprintf(stderr, "error, missing media\n");
return -EINVAL;
}
+
+ if ((prop == TIPC_NLA_PROP_MTU) &&
+ (strcmp(opt->val, "udp"))) {
+ fprintf(stderr, "error, not supported for media\n");
+ return -EINVAL;
+ }
mnl_attr_put_strz(nlh, TIPC_NLA_MEDIA_NAME, opt->val);
props = mnl_attr_nest_start(nlh, TIPC_NLA_MEDIA_PROP);
@@ -228,6 +247,7 @@ static int cmd_media_set(struct nlmsghdr *nlh, const struct
cmd *cmd,
{ "priority", cmd_media_set_prop, cmd_media_set_help },
{ "tolerance", cmd_media_set_prop, cmd_media_set_help },
{ "window", cmd_media_set_prop, cmd_media_set_help },
+ { "mtu", cmd_media_set_prop, cmd_media_set_help },
{ NULL }
};
--
2.1.4
