From 35ab804ea7fa9e92a5e09f9a41a03768b3cd0a82 Mon Sep 17 00:00:00 2001 From: Mathias Kresin Date: Thu, 18 Jul 2019 10:29:08 +0200 Subject: kernel: swconfig: make compatible with kernel 5.2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Since kernel 5.2 within netlink messages the NLA_F_NESTED nested flag is validated. But swconfig/swlib doesn't set the flag for SWITCH_ATTR_OP_VALUE_PORTS related netlink messages and assigning ports to vlans via swconfig dev switch0 vlan 1 set ports '0 1 2 3 4 6t' Errors put with "Failed to set attribute: Invalid input data or parameter". Relax the validation rules and use the deprecated functions, to use the same level of validation as it was till kernel 5.1. Depending on who has swconfig related netlink messages implemented, there might be more broken tools out there and we should keep backward compatibility if possible. Signed-off-by: Mathias Kresin Tested-by: Rafał Miłecki --- .../linux/generic/files/drivers/net/phy/swconfig.c | 47 +++++++++++++++++++--- 1 file changed, 41 insertions(+), 6 deletions(-) (limited to 'target') diff --git a/target/linux/generic/files/drivers/net/phy/swconfig.c b/target/linux/generic/files/drivers/net/phy/swconfig.c index abf1a4504b..e7da45d0f7 100644 --- a/target/linux/generic/files/drivers/net/phy/swconfig.c +++ b/target/linux/generic/files/drivers/net/phy/swconfig.c @@ -591,12 +591,15 @@ swconfig_parse_ports(struct sk_buff *msg, struct nlattr *head, port = &val->value.ports[val->len]; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,12,0) +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + if (nla_parse_nested_deprecated(tb, SWITCH_PORT_ATTR_MAX, nla, + port_policy, NULL)) +#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) if (nla_parse_nested(tb, SWITCH_PORT_ATTR_MAX, nla, - port_policy)) + port_policy, NULL)) #else if (nla_parse_nested(tb, SWITCH_PORT_ATTR_MAX, nla, - port_policy, NULL)) + port_policy)) #endif return -EINVAL; @@ -618,10 +621,12 @@ swconfig_parse_link(struct sk_buff *msg, struct nlattr *nla, { struct nlattr *tb[SWITCH_LINK_ATTR_MAX + 1]; -#if LINUX_VERSION_CODE < KERNEL_VERSION(4,12,0) - if (nla_parse_nested(tb, SWITCH_LINK_ATTR_MAX, nla, link_policy)) -#else +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + if (nla_parse_nested_deprecated(tb, SWITCH_LINK_ATTR_MAX, nla, link_policy, NULL)) +#elif LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) if (nla_parse_nested(tb, SWITCH_LINK_ATTR_MAX, nla, link_policy, NULL)) +#else + if (nla_parse_nested(tb, SWITCH_LINK_ATTR_MAX, nla, link_policy)) #endif return -EINVAL; @@ -1000,6 +1005,9 @@ swconfig_done(struct netlink_callback *cb) static struct genl_ops swconfig_ops[] = { { .cmd = SWITCH_CMD_LIST_GLOBAL, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .doit = swconfig_list_attrs, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) .policy = switch_policy, @@ -1007,6 +1015,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_LIST_VLAN, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .doit = swconfig_list_attrs, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) .policy = switch_policy, @@ -1014,6 +1025,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_LIST_PORT, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .doit = swconfig_list_attrs, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) .policy = switch_policy, @@ -1021,6 +1035,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_GET_GLOBAL, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .doit = swconfig_get_attr, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) .policy = switch_policy, @@ -1028,6 +1045,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_GET_VLAN, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .doit = swconfig_get_attr, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) .policy = switch_policy, @@ -1035,6 +1055,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_GET_PORT, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .doit = swconfig_get_attr, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) .policy = switch_policy, @@ -1042,6 +1065,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_SET_GLOBAL, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .flags = GENL_ADMIN_PERM, .doit = swconfig_set_attr, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) @@ -1050,6 +1076,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_SET_VLAN, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .flags = GENL_ADMIN_PERM, .doit = swconfig_set_attr, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) @@ -1058,6 +1087,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_SET_PORT, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .flags = GENL_ADMIN_PERM, .doit = swconfig_set_attr, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) @@ -1066,6 +1098,9 @@ static struct genl_ops swconfig_ops[] = { }, { .cmd = SWITCH_CMD_GET_SWITCH, +#if LINUX_VERSION_CODE >= KERNEL_VERSION(5,2,0) + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, +#endif .dumpit = swconfig_dump_switches, #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 2, 0) .policy = switch_policy, -- cgit v1.2.3