| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 13 Oct 2011 23:31:32 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net, shemminger@...tta.com
Cc: Greg Rose <gregory.v.rose@...el.com>, netdev@...r.kernel.org,
gospo@...hat.com, sassmann@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [iproute2] iproute2: Add new command to ip link to enable/disable VF spoof check
From: Greg Rose <gregory.v.rose@...el.com>
Add ip link command parsing for VF spoof checking enable/disable
V2 - Fixed problem with parsing of dump info on kernels that don't
support the spoof checking option and also wrapped the ifla_vf_info
structure in #ifdef __KERNEL__ to prevent user space from directly
accessing the structure
V3 - Improved parsing of vfinfo
V4 - Put Makefile back to proper list of subdirs
V5 - Remove struct ifla_vf_info, it is only used by the kernel
V6 - Make sure spoof check is reported by the driver - rtnl will set
it to -1 to indicate driver didn't report a value.
Signed-off-by: Greg Rose <gregory.v.rose@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
include/linux/if_link.h | 8 +++-----
ip/ipaddress.c | 19 +++++++++++++++++++
ip/iplink.c | 15 +++++++++++++++
man/man8/ip.8 | 4 +++-
4 files changed, 40 insertions(+), 6 deletions(-)
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 304c44f..d3bc04c 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -277,6 +277,7 @@ enum {
IFLA_VF_MAC, /* Hardware queue specific attributes */
IFLA_VF_VLAN,
IFLA_VF_TX_RATE, /* TX Bandwidth Allocation */
+ IFLA_VF_SPOOFCHK, /* Spoof Checking on/off switch */
__IFLA_VF_MAX,
};
@@ -298,12 +299,9 @@ struct ifla_vf_tx_rate {
__u32 rate; /* Max TX bandwidth in Mbps, 0 disables throttling */
};
-struct ifla_vf_info {
+struct ifla_vf_spoofchk {
__u32 vf;
- __u8 mac[32];
- __u32 vlan;
- __u32 qos;
- __u32 tx_rate;
+ __u32 setting;
};
/* VF ports management section
diff --git a/ip/ipaddress.c b/ip/ipaddress.c
index 85f05a2..2f2cabd 100644
--- a/ip/ipaddress.c
+++ b/ip/ipaddress.c
@@ -197,7 +197,9 @@ static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
struct ifla_vf_mac *vf_mac;
struct ifla_vf_vlan *vf_vlan;
struct ifla_vf_tx_rate *vf_tx_rate;
+ struct ifla_vf_spoofchk *vf_spoofchk;
struct rtattr *vf[IFLA_VF_MAX+1];
+ struct rtattr *tmp;
SPRINT_BUF(b1);
if (vfinfo->rta_type != IFLA_VF_INFO) {
@@ -211,6 +213,17 @@ static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
+ /* Check if the spoof checking vf info type is supported by
+ * this kernel.
+ */
+ tmp = (struct rtattr *)((char *)vf[IFLA_VF_TX_RATE] +
+ vf[IFLA_VF_TX_RATE]->rta_len);
+
+ if (tmp->rta_type != IFLA_VF_SPOOFCHK)
+ vf_spoofchk = NULL;
+ else
+ vf_spoofchk = RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
+
fprintf(fp, "\n vf %d MAC %s", vf_mac->vf,
ll_addr_n2a((unsigned char *)&vf_mac->mac,
ETH_ALEN, 0, b1, sizeof(b1)));
@@ -220,6 +233,12 @@ static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
fprintf(fp, ", qos %d", vf_vlan->qos);
if (vf_tx_rate->rate)
fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
+ if (vf_spoofchk && vf_spoofchk->setting != -1) {
+ if (vf_spoofchk->setting)
+ fprintf(fp, ", spoof checking on");
+ else
+ fprintf(fp, ", spoof checking off");
+ }
}
int print_linkinfo(const struct sockaddr_nl *who,
diff --git a/ip/iplink.c b/ip/iplink.c
index 35e6dc6..ca1aaeb 100644
--- a/ip/iplink.c
+++ b/ip/iplink.c
@@ -71,7 +71,10 @@ void iplink_usage(void)
fprintf(stderr, " [ alias NAME ]\n");
fprintf(stderr, " [ vf NUM [ mac LLADDR ]\n");
fprintf(stderr, " [ vlan VLANID [ qos VLAN-QOS ] ]\n");
+
fprintf(stderr, " [ rate TXRATE ] ] \n");
+
+ fprintf(stderr, " [ spoofchk { on | off} ] ] \n");
fprintf(stderr, " [ master DEVICE ]\n");
fprintf(stderr, " [ nomaster ]\n");
fprintf(stderr, " ip link show [ DEVICE | group GROUP ]\n");
@@ -228,6 +231,18 @@ int iplink_parse_vf(int vf, int *argcp, char ***argvp,
ivt.vf = vf;
addattr_l(&req->n, sizeof(*req), IFLA_VF_TX_RATE, &ivt, sizeof(ivt));
+ } else if (matches(*argv, "spoofchk") == 0) {
+ struct ifla_vf_spoofchk ivs;
+ NEXT_ARG();
+ if (matches(*argv, "on") == 0)
+ ivs.setting = 1;
+ else if (matches(*argv, "off") == 0)
+ ivs.setting = 0;
+ else
+ invarg("Invalid \"spoofchk\" value\n", *argv);
+ ivs.vf = vf;
+ addattr_l(&req->n, sizeof(*req), IFLA_VF_SPOOFCHK, &ivs, sizeof(ivs));
+
} else {
/* rewind arg */
PREV_ARG();
diff --git a/man/man8/ip.8 b/man/man8/ip.8
index 36431b6..a20eca7 100644
--- a/man/man8/ip.8
+++ b/man/man8/ip.8
@@ -100,7 +100,9 @@ ip \- show / manipulate routing, devices, policy routing and tunnels
.B qos
.IR VLAN-QOS " ] ] ["
.B rate
-.IR TXRATE " ] |"
+.IR TXRATE " ] ["
+.B spoofchk { on | off }
+] |
.br
.B master
.IR DEVICE
--
1.7.6.4
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists