[patch 6/7] s390: introduce guestLan sniffer support in qeth
From: Peter Tiedemann <[email protected]>
- introduce guestLan sniffer support in qeth
feature allows a linux in a virtual machine
guest to become a network LAN sniffer,
monitoring and recording the networking traffic
within an entire guestLan.
Signed-off-by: Frank Pavlic <[email protected]>
diffstat:
qeth.h | 2 +
qeth_main.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
qeth_mpc.h | 11 ++++---
3 files changed, 102 insertions(+), 4 deletions(-)
diff -Naupr orig/drivers/s390/net/qeth.h patched-linux/drivers/s390/net/qeth.h
--- orig/drivers/s390/net/qeth.h 2005-11-09 20:49:36.000000000 +0100
+++ patched-linux/drivers/s390/net/qeth.h 2005-11-09 20:52:27.000000000 +0100
@@ -750,6 +750,7 @@ struct qeth_card_info {
int unique_id;
struct qeth_card_blkt blkt;
__u32 csum_mask;
+ enum qeth_ipa_promisc_modes promisc_mode;
};
struct qeth_card_options {
@@ -776,6 +777,7 @@ struct qeth_card_options {
enum qeth_threads {
QETH_SET_IP_THREAD = 1,
QETH_RECOVER_THREAD = 2,
+ QETH_SET_PROMISC_MODE_THREAD = 4,
};
struct qeth_osn_info {
diff -Naupr orig/drivers/s390/net/qeth_main.c patched-linux/drivers/s390/net/qeth_main.c
--- orig/drivers/s390/net/qeth_main.c 2005-11-09 20:49:36.000000000 +0100
+++ patched-linux/drivers/s390/net/qeth_main.c 2005-11-09 20:50:03.000000000 +0100
@@ -160,6 +160,9 @@ static void
qeth_set_multicast_list(struct net_device *);
static void
+qeth_setadp_promisc_mode(struct qeth_card *);
+
+static void
qeth_notify_processes(void)
{
/*notify all registered processes */
@@ -965,6 +968,24 @@ qeth_register_ip_addresses(void *ptr)
return 0;
}
+/*
+ * Drive the SET_PROMISC_MODE thread
+ */
+static int
+qeth_set_promisc_mode(void *ptr)
+{
+ struct qeth_card *card = (struct qeth_card *) ptr;
+
+ daemonize("qeth_setprm");
+ QETH_DBF_TEXT(trace,4,"setprm1");
+ if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
+ return 0;
+ QETH_DBF_TEXT(trace,4,"setprm2");
+ qeth_setadp_promisc_mode(card);
+ qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
+ return 0;
+}
+
static int
qeth_recover(void *ptr)
{
@@ -1031,6 +1052,8 @@ qeth_start_kernel_thread(struct qeth_car
if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
+ if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
+ kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
kernel_thread(qeth_recover, (void *) card, SIGCHLD);
}
@@ -5003,6 +5026,10 @@ qeth_default_setassparms_cb(struct qeth_
unsigned long);
static int
+qeth_default_setadapterparms_cb(struct qeth_card *card,
+ struct qeth_reply *reply,
+ unsigned long data);
+static int
qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
__u16, long,
int (*reply_cb)
@@ -5476,6 +5503,59 @@ qeth_vlan_rx_kill_vid(struct net_device
qeth_set_multicast_list(card->dev);
}
#endif
+/**
+ * Examine hardware response to SET_PROMISC_MODE
+ */
+static int
+qeth_setadp_promisc_mode_cb(struct qeth_card *card,
+ struct qeth_reply *reply,
+ unsigned long data)
+{
+ struct qeth_ipa_cmd *cmd;
+ struct qeth_ipacmd_setadpparms *setparms;
+
+ QETH_DBF_TEXT(trace,4,"prmadpcb");
+
+ cmd = (struct qeth_ipa_cmd *) data;
+ setparms = &(cmd->data.setadapterparms);
+
+ qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
+ if (cmd->hdr.return_code) {
+ QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
+ setparms->data.mode = SET_PROMISC_MODE_OFF;
+ }
+ card->info.promisc_mode = setparms->data.mode;
+ return 0;
+}
+/*
+ * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
+ */
+static void
+qeth_setadp_promisc_mode(struct qeth_card *card)
+{
+ enum qeth_ipa_promisc_modes mode;
+ struct net_device *dev = card->dev;
+ struct qeth_cmd_buffer *iob;
+ struct qeth_ipa_cmd *cmd;
+
+ QETH_DBF_TEXT(trace, 4, "setprom");
+
+ if (((dev->flags & IFF_PROMISC) &&
+ (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
+ (!(dev->flags & IFF_PROMISC) &&
+ (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
+ return;
+ mode = SET_PROMISC_MODE_OFF;
+ if (dev->flags & IFF_PROMISC)
+ mode = SET_PROMISC_MODE_ON;
+ QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
+
+ iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
+ sizeof(struct qeth_ipacmd_setadpparms));
+ cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
+ cmd->data.setadapterparms.data.mode = mode;
+ qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
+}
/**
* set multicast address on card
@@ -5501,6 +5581,11 @@ qeth_set_multicast_list(struct net_devic
out:
if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
schedule_work(&card->kernel_thread_starter);
+ if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
+ return;
+ if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
+ schedule_work(&card->kernel_thread_starter);
+
}
static int
@@ -6510,6 +6595,8 @@ qeth_default_setadapterparms_cb(struct q
return 0;
}
+
+
static int
qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
unsigned long data)
@@ -6676,6 +6763,12 @@ qeth_layer2_initialize(struct qeth_card
QETH_DBF_TEXT(setup, 2, "doL2init");
QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
+ rc = qeth_query_setadapterparms(card);
+ if (rc) {
+ PRINT_WARN("could not query adapter parameters on device %s: "
+ "x%x\n", CARD_BUS_ID(card), rc);
+ }
+
rc = qeth_setadpparms_change_macaddr(card);
if (rc) {
PRINT_WARN("couldn't get MAC address on "
diff -Naupr orig/drivers/s390/net/qeth_mpc.h patched-linux/drivers/s390/net/qeth_mpc.h
--- orig/drivers/s390/net/qeth_mpc.h 2005-11-09 20:06:57.000000000 +0100
+++ patched-linux/drivers/s390/net/qeth_mpc.h 2005-11-09 20:50:03.000000000 +0100
@@ -14,7 +14,7 @@
#include <asm/qeth.h>
-#define VERSION_QETH_MPC_H "$Revision: 1.43 $"
+#define VERSION_QETH_MPC_H "$Revision: 1.44 $"
extern const char *VERSION_QETH_MPC_C;
@@ -217,7 +217,7 @@ enum qeth_ipa_setadp_cmd {
IPA_SETADP_SEND_OSA_MESSAGE = 0x0100,
IPA_SETADP_SET_SNMP_CONTROL = 0x0200,
IPA_SETADP_READ_SNMP_PARMS = 0x0400,
- IPA_SETADP_WRITE_SNMP_PARMS = 0x0800,
+ IPA_SETADP_SET_PROMISC_MODE = 0x0800,
IPA_SETADP_QUERY_CARD_INFO = 0x1000,
};
enum qeth_ipa_mac_ops {
@@ -232,9 +232,12 @@ enum qeth_ipa_addr_ops {
CHANGE_ADDR_ADD_ADDR = 1,
CHANGE_ADDR_DEL_ADDR = 2,
CHANGE_ADDR_FLUSH_ADDR_TABLE = 4,
-
-
};
+enum qeth_ipa_promisc_modes {
+ SET_PROMISC_MODE_OFF = 0,
+ SET_PROMISC_MODE_ON = 1,
+};
+
/* (SET)DELIP(M) IPA stuff ***************************************************/
struct qeth_ipacmd_setdelip4 {
__u8 ip_addr[4];
-
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