From 6c951b9051f2094dd98bafcb46e7e6b3e8813231 Mon Sep 17 00:00:00 2001 From: Frank Pavlic Date: Thu, 10 Nov 2005 13:51:25 +0100 Subject: [PATCH] [PATCH] s390: introduce guestLan sniffer support in qeth [patch 6/7] s390: introduce guestLan sniffer support in qeth From: Peter Tiedemann - 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 diffstat: qeth.h | 2 + qeth_main.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ qeth_mpc.h | 11 ++++--- 3 files changed, 102 insertions(+), 4 deletions(-) Signed-off-by: Jeff Garzik --- drivers/s390/net/qeth.h | 2 + drivers/s390/net/qeth_main.c | 93 ++++++++++++++++++++++++++++++++++++++++++++ drivers/s390/net/qeth_mpc.h | 11 ++++-- 3 files changed, 102 insertions(+), 4 deletions(-) diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h index 44b9e14..d238c7e 100644 --- a/drivers/s390/net/qeth.h +++ b/drivers/s390/net/qeth.h @@ -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 --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c index 0f7f511..db07e46 100644 --- a/drivers/s390/net/qeth_main.c +++ b/drivers/s390/net/qeth_main.c @@ -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_card *card) 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_card *, struct qeth_reply *, 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 *dev, unsigned short vid) 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_device *dev) 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 qeth_card *card, 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 *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 --git a/drivers/s390/net/qeth_mpc.h b/drivers/s390/net/qeth_mpc.h index 7edc5f1..628c9f5 100644 --- a/drivers/s390/net/qeth_mpc.h +++ b/drivers/s390/net/qeth_mpc.h @@ -14,7 +14,7 @@ #include -#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]; -- 2.7.4