Config support to set the IGMP host version on device level; possible values
are :
1 : IGMPv1
2 : IGMPv2
3 : IGMPv3
Signed-off-by: Hans Dedecker <dedec...@gmail.com>
---
device.c | 11 +++++++++++
device.h | 3 +++
system-dummy.c | 6 ++++++
system-linux.c | 34 ++++++++++++++++++++++++++++++++++
system.h | 1 +
5 files changed, 55 insertions(+)
diff --git a/device.c b/device.c
index aa5818f..6cdfb49 100644
--- a/device.c
+++ b/device.c
@@ -41,6 +41,7 @@ static const struct blobmsg_policy dev_attrs[__DEV_ATTR_MAX]
= {
[DEV_ATTR_PROMISC] = { .name = "promisc", .type = BLOBMSG_TYPE_BOOL },
[DEV_ATTR_RPFILTER] = { .name = "rpfilter", .type = BLOBMSG_TYPE_STRING
},
[DEV_ATTR_ACCEPTLOCAL] = { .name = "acceptlocal", .type =
BLOBMSG_TYPE_BOOL },
+ [DEV_ATTR_IGMPVERSION] = { .name = "igmpversion", .type =
BLOBMSG_TYPE_INT32 },
};
const struct uci_blob_param_list device_attr_list = {
@@ -158,6 +159,7 @@ device_merge_settings(struct device *dev, struct
device_settings *n)
n->promisc = s->flags & DEV_OPT_PROMISC ? s->promisc : os->promisc;
n->rpfilter = s->flags & DEV_OPT_RPFILTER ? s->rpfilter : os->rpfilter;
n->acceptlocal = s->flags & DEV_OPT_ACCEPTLOCAL ? s->acceptlocal :
os->acceptlocal;
+ n->igmpversion = s->flags & DEV_OPT_IGMPVERSION ? s->igmpversion :
os->igmpversion;
n->flags = s->flags | os->flags;
}
@@ -213,6 +215,13 @@ device_init_settings(struct device *dev, struct blob_attr
**tb)
s->flags |= DEV_OPT_ACCEPTLOCAL;
}
+ if ((cur = tb[DEV_ATTR_IGMPVERSION])) {
+ if (system_resolve_igmpversion(blobmsg_get_u32(cur),
&s->igmpversion))
+ s->flags |= DEV_OPT_IGMPVERSION;
+ else
+ DPRINTF("Failed to resolve igmpversion: %d\n",
blobmsg_get_u32(cur));
+ }
+
device_set_disabled(dev, disabled);
}
@@ -754,6 +763,8 @@ device_dump_status(struct blob_buf *b, struct device *dev)
blobmsg_add_u32(b, "rpfilter", st.rpfilter);
if (st.flags & DEV_OPT_ACCEPTLOCAL)
blobmsg_add_u8(b, "acceptlocal", st.acceptlocal);
+ if (st.flags & DEV_OPT_IGMPVERSION)
+ blobmsg_add_u32(b, "igmpversion", st.igmpversion);
}
s = blobmsg_open_table(b, "statistics");
diff --git a/device.h b/device.h
index 8569be7..a83cac8 100644
--- a/device.h
+++ b/device.h
@@ -35,6 +35,7 @@ enum {
DEV_ATTR_PROMISC,
DEV_ATTR_RPFILTER,
DEV_ATTR_ACCEPTLOCAL,
+ DEV_ATTR_IGMPVERSION,
__DEV_ATTR_MAX,
};
@@ -70,6 +71,7 @@ enum {
DEV_OPT_PROMISC = (1 << 4),
DEV_OPT_RPFILTER = (1 << 5),
DEV_OPT_ACCEPTLOCAL = (1 << 6),
+ DEV_OPT_IGMPVERSION = (1 << 7),
};
/* events broadcasted to all users of a device */
@@ -119,6 +121,7 @@ struct device_settings {
bool promisc;
unsigned int rpfilter;
bool acceptlocal;
+ unsigned int igmpversion;
};
/*
diff --git a/system-dummy.c b/system-dummy.c
index 76c6ffa..9542d3c 100644
--- a/system-dummy.c
+++ b/system-dummy.c
@@ -215,6 +215,12 @@ bool system_resolve_rpfilter(const char *filter, unsigned
int *id)
return true;
}
+bool system_resolve_igmpversion(const unsigned int version, unsigned int *id)
+{
+ *id = 0;
+ return true;
+}
+
int system_add_iprule(struct iprule *rule)
{
return 0;
diff --git a/system-linux.c b/system-linux.c
index 4662bf8..7beae09 100644
--- a/system-linux.c
+++ b/system-linux.c
@@ -275,6 +275,11 @@ static void system_set_acceptlocal(struct device *dev,
const char *val)
system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/accept_local",
dev->ifname, val);
}
+static void system_set_igmpversion(struct device *dev, const char *val)
+{
+ system_set_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
dev->ifname, val);
+}
+
static int system_get_sysctl(const char *path, char *buf, const size_t buf_sz)
{
int fd = -1, ret = -1;
@@ -321,6 +326,12 @@ static int system_get_acceptlocal(struct device *dev, char
*buf, const size_t bu
dev->ifname, buf, buf_sz);
}
+static int system_get_igmpversion(struct device *dev, char *buf, const size_t
buf_sz)
+{
+ return
system_get_dev_sysctl("/proc/sys/net/ipv4/conf/%s/force_igmp_version",
+ dev->ifname, buf, buf_sz);
+}
+
// Evaluate netlink messages
static int cb_rtnl_event(struct nl_msg *msg, void *arg)
{
@@ -985,6 +996,11 @@ system_if_get_settings(struct device *dev, struct
device_settings *s)
s->acceptlocal = strtoul(buf, NULL, 0);
s->flags |= DEV_OPT_ACCEPTLOCAL;
}
+
+ if (!system_get_igmpversion(dev, buf, sizeof(buf))) {
+ s->igmpversion = strtoul(buf, NULL, 0);
+ s->flags |= DEV_OPT_IGMPVERSION;
+ }
}
void
@@ -1028,6 +1044,12 @@ system_if_apply_settings(struct device *dev, struct
device_settings *s, unsigned
}
if (s->flags & DEV_OPT_ACCEPTLOCAL & apply_mask)
system_set_acceptlocal(dev, s->acceptlocal ? "1" : "0");
+ if (s->flags & DEV_OPT_IGMPVERSION & apply_mask) {
+ char buf[2];
+
+ snprintf(buf, sizeof(buf), "%d", s->igmpversion);
+ system_set_igmpversion(dev, buf);
+ }
}
int system_if_up(struct device *dev)
@@ -1575,6 +1597,18 @@ bool system_resolve_rpfilter(const char *filter,
unsigned int *id)
return true;
}
+bool system_resolve_igmpversion(const unsigned int version, unsigned int *id)
+{
+ if (!version || version > 3)
+ return false;
+
+ *id = version;
+ if (*id == 3)
+ *id = 0;
+
+ return true;
+}
+
static int system_iprule(struct iprule *rule, int cmd)
{
int alen = ((rule->flags & IPRULE_FAMILY) == IPRULE_INET4) ? 4 : 16;
diff --git a/system.h b/system.h
index 9a2326b..8c9e994 100644
--- a/system.h
+++ b/system.h
@@ -136,6 +136,7 @@ bool system_resolve_rt_type(const char *type, unsigned int
*id);
bool system_resolve_rt_table(const char *name, unsigned int *id);
bool system_is_default_rt_table(unsigned int id);
bool system_resolve_rpfilter(const char *filter, unsigned int *id);
+bool system_resolve_igmpversion(const unsigned int version, unsigned int *id);
int system_del_ip_tunnel(const char *name, struct blob_attr *attr);
int system_add_ip_tunnel(const char *name, struct blob_attr *attr);
--
1.9.1
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