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openSUSE:Evergreen:11.1:kernel-2.6.32
iproute2
iproute2-m_skbedit.patch
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File iproute2-m_skbedit.patch of Package iproute2
IPROUTE: add support for skbedit action From: Alexander Duyck <alexander.h.duyck@intel.com> Add support for skbedit action. Provides ability to edit queue_mapping field Provides ability to edit priority field usage: action skbedit [queue_mapping QUEUE_MAPPING] [priority PRIORITY] at least one option must be select, or both at the same time Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> --- include/linux/tc_act/tc_skbedit.h | 43 ++++++++ tc/Makefile | 1 tc/m_skbedit.c | 192 +++++++++++++++++++++++++++++++++++++ 3 files changed, 236 insertions(+), 0 deletions(-) create mode 100644 include/linux/tc_act/tc_skbedit.h create mode 100644 tc/m_skbedit.c diff --git a/include/linux/tc_act/tc_skbedit.h b/include/linux/tc_act/tc_skbedit.h new file mode 100644 index 0000000..98311f0 --- /dev/null +++ b/include/linux/tc_act/tc_skbedit.h @@ -0,0 +1,43 @@ +/* Copyright (c) 2008, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. + * + * Author: Alexander Duyck <alexander.h.duyck@intel.com> + */ + +#ifndef __LINUX_TC_SKBEDIT_H +#define __LINUX_TC_SKBEDIT_H + +#include <linux/pkt_cls.h> + +#define TCA_ACT_SKBEDIT 11 + +#define SKBEDIT_F_PRIORITY 0x1 +#define SKBEDIT_F_QUEUE_MAPPING 0x2 + +struct tc_skbedit { + tc_gen; +}; + +enum { + TCA_SKBEDIT_UNSPEC, + TCA_SKBEDIT_TM, + TCA_SKBEDIT_PARMS, + TCA_SKBEDIT_PRIORITY, + TCA_SKBEDIT_QUEUE_MAPPING, + __TCA_SKBEDIT_MAX +}; +#define TCA_SKBEDIT_MAX (__TCA_SKBEDIT_MAX - 1) + +#endif diff --git a/tc/Makefile b/tc/Makefile index 4116983..1b4169d 100644 --- a/tc/Makefile +++ b/tc/Makefile @@ -30,6 +30,7 @@ TCMODULES += m_mirred.o TCMODULES += m_ipt.o TCMODULES += m_nat.o TCMODULES += m_pedit.o +TCMODULES += m_skbedit.o TCMODULES += p_ip.o TCMODULES += p_icmp.o TCMODULES += p_tcp.o diff --git a/tc/m_skbedit.c b/tc/m_skbedit.c new file mode 100644 index 0000000..55e3f89 --- /dev/null +++ b/tc/m_skbedit.c @@ -0,0 +1,192 @@ +/* + * m_skbedit.c SKB Editing module + * + * Copyright (c) 2008, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. + * + * Authors: Alexander Duyck <alexander.h.duyck@intel.com> + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include "utils.h" +#include "tc_util.h" +#include <linux/tc_act/tc_skbedit.h> + +static void +explain(void) +{ + fprintf(stderr, "Usage: ... skbedit " + "queue_mapping QUEUE_MAPPING | priority PRIORITY \n" + "QUEUE_MAPPING = device transmit queue to use\n" + "PRIORITY = classID to assign to priority field\n"); +} + +static void +usage(void) +{ + explain(); + exit(-1); +} + +static int +parse_skbedit(struct action_util *a, int *argc_p, char ***argv_p, int tca_id, + struct nlmsghdr *n) +{ + struct tc_skbedit sel; + int argc = *argc_p; + char **argv = *argv_p; + int ok = 0; + struct rtattr *tail; + unsigned int tmp; + __u16 queue_mapping; + __u32 flags = 0, priority; + + if (matches(*argv, "skbedit") != 0) + return -1; + + NEXT_ARG(); + + while (argc > 0) { + if (matches(*argv, "queue_mapping") == 0) { + flags |= SKBEDIT_F_QUEUE_MAPPING; + NEXT_ARG(); + if (get_unsigned(&tmp, *argv, 10) || tmp > 65535) { + fprintf(stderr, "Illegal queue_mapping\n"); + return -1; + } + queue_mapping = tmp; + ok++; + } else if (matches(*argv, "priority") == 0) { + flags |= SKBEDIT_F_PRIORITY; + NEXT_ARG(); + if (get_tc_classid(&priority, *argv)) { + fprintf(stderr, "Illegal priority\n"); + return -1; + } + ok++; + } else if (matches(*argv, "help") == 0) { + usage(); + } else { + break; + } + argc--; + argv++; + } + + if (argc) { + if (matches(*argv, "reclassify") == 0) { + sel.action = TC_ACT_RECLASSIFY; + NEXT_ARG(); + } else if (matches(*argv, "pipe") == 0) { + sel.action = TC_ACT_PIPE; + NEXT_ARG(); + } else if (matches(*argv, "drop") == 0 || + matches(*argv, "shot") == 0) { + sel.action = TC_ACT_SHOT; + NEXT_ARG(); + } else if (matches(*argv, "continue") == 0) { + sel.action = TC_ACT_UNSPEC; + NEXT_ARG(); + } else if (matches(*argv, "pass") == 0) { + sel.action = TC_ACT_OK; + NEXT_ARG(); + } + } + + if (argc) { + if (matches(*argv, "index") == 0) { + NEXT_ARG(); + if (get_u32(&sel.index, *argv, 10)) { + fprintf(stderr, "Pedit: Illegal \"index\"\n"); + return -1; + } + argc--; + argv++; + ok++; + } + } + + if (!ok) { + explain(); + return -1; + } + + + tail = NLMSG_TAIL(n); + addattr_l(n, MAX_MSG, tca_id, NULL, 0); + addattr_l(n, MAX_MSG, TCA_SKBEDIT_PARMS, &sel, sizeof(sel)); + if (flags & SKBEDIT_F_QUEUE_MAPPING) + addattr_l(n, MAX_MSG, TCA_SKBEDIT_QUEUE_MAPPING, + &queue_mapping, sizeof(queue_mapping)); + if (flags & SKBEDIT_F_PRIORITY) + addattr_l(n, MAX_MSG, TCA_SKBEDIT_PRIORITY, + &priority, sizeof(priority)); + tail->rta_len = (char *)NLMSG_TAIL(n) - (char *)tail; + + *argc_p = argc; + *argv_p = argv; + return 0; +} + +static int print_skbedit(struct action_util *au, FILE *f, struct rtattr *arg) +{ + struct tc_skbedit *sel; + struct rtattr *tb[TCA_SKBEDIT_MAX + 1]; + SPRINT_BUF(b1); + __u32 *priority; + __u16 *queue_mapping; + + if (arg == NULL) + return -1; + + parse_rtattr_nested(tb, TCA_SKBEDIT_MAX, arg); + + if (tb[TCA_SKBEDIT_PARMS] == NULL) { + fprintf(f, "[NULL skbedit parameters]"); + return -1; + } + + sel = RTA_DATA(tb[TCA_SKBEDIT_PARMS]); + + fprintf(f, " skbedit"); + + if (tb[TCA_SKBEDIT_QUEUE_MAPPING] != NULL) { + queue_mapping = RTA_DATA(tb[TCA_SKBEDIT_QUEUE_MAPPING]); + fprintf(f, " queue_mapping %u", *queue_mapping); + } + if (tb[TCA_SKBEDIT_PRIORITY] != NULL) { + priority = RTA_DATA(tb[TCA_SKBEDIT_PRIORITY]); + fprintf(f, " priority %s", sprint_tc_classid(*priority, b1)); + } + + if (show_stats) { + if (tb[TCA_SKBEDIT_TM]) { + struct tcf_t *tm = RTA_DATA(tb[TCA_SKBEDIT_TM]); + print_tm(f, tm); + } + } + + return 0; +} + +struct action_util skbedit_action_util = { + .id = "skbedit", + .parse_aopt = parse_skbedit, + .print_aopt = print_skbedit, +};
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