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author | jk7744.park <jk7744.park@samsung.com> | 2015-09-08 21:56:24 +0900 |
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committer | jk7744.park <jk7744.park@samsung.com> | 2015-09-08 21:56:24 +0900 |
commit | 427e21006a01f98c92434008442bba504c9d2e6c (patch) | |
tree | 8d3cdcc6e535016586023d74b9816ef339ddb31f /extensions/libipt_ECN.c | |
parent | f5589e19420a83ca978348cbcfbc4c83b310bd3b (diff) | |
download | iptables-427e21006a01f98c92434008442bba504c9d2e6c.tar.gz iptables-427e21006a01f98c92434008442bba504c9d2e6c.tar.bz2 iptables-427e21006a01f98c92434008442bba504c9d2e6c.zip |
tizen 2.3.1 releasetizen_2.3.1_releasesubmit/tizen_2.3.1/20150915.074541tizen_2.3.1
Diffstat (limited to 'extensions/libipt_ECN.c')
-rw-r--r-- | extensions/libipt_ECN.c | 118 |
1 files changed, 47 insertions, 71 deletions
diff --git a/extensions/libipt_ECN.c b/extensions/libipt_ECN.c index bf1f8a5..ee09f29 100644 --- a/extensions/libipt_ECN.c +++ b/extensions/libipt_ECN.c @@ -5,17 +5,21 @@ * This program is distributed under the terms of GNU GPL v2, 1991 * * libipt_ECN.c borrowed heavily from libipt_DSCP.c - * - * $Id$ */ #include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <getopt.h> - #include <xtables.h> #include <linux/netfilter_ipv4/ipt_ECN.h> +enum { + O_ECN_TCP_REMOVE = 0, + O_ECN_TCP_CWR, + O_ECN_TCP_ECE, + O_ECN_IP_ECT, + F_ECN_TCP_REMOVE = 1 << O_ECN_TCP_REMOVE, + F_ECN_TCP_CWR = 1 << O_ECN_TCP_CWR, + F_ECN_TCP_ECE = 1 << O_ECN_TCP_ECE, +}; + static void ECN_help(void) { printf( @@ -30,77 +34,49 @@ static void ECN_help(void) " --ecn-tcp-ece Set the IPv4 ECE bit (0 or 1)\n", #endif - -static const struct option ECN_opts[] = { - { "ecn-tcp-remove", 0, NULL, 'F' }, - { "ecn-tcp-cwr", 1, NULL, 'G' }, - { "ecn-tcp-ece", 1, NULL, 'H' }, - { "ecn-ip-ect", 1, NULL, '9' }, - { .name = NULL } +static const struct xt_option_entry ECN_opts[] = { + {.name = "ecn-tcp-remove", .id = O_ECN_TCP_REMOVE, .type = XTTYPE_NONE, + .excl = F_ECN_TCP_CWR | F_ECN_TCP_ECE}, + {.name = "ecn-tcp-cwr", .id = O_ECN_TCP_CWR, .type = XTTYPE_UINT8, + .min = 0, .max = 1, .excl = F_ECN_TCP_REMOVE}, + {.name = "ecn-tcp-ece", .id = O_ECN_TCP_ECE, .type = XTTYPE_UINT8, + .min = 0, .max = 1, .excl = F_ECN_TCP_REMOVE}, + {.name = "ecn-ip-ect", .id = O_ECN_IP_ECT, .type = XTTYPE_UINT8, + .min = 0, .max = 3}, + XTOPT_TABLEEND, }; -static int ECN_parse(int c, char **argv, int invert, unsigned int *flags, - const void *entry, struct xt_entry_target **target) +static void ECN_parse(struct xt_option_call *cb) { - unsigned int result; - struct ipt_ECN_info *einfo - = (struct ipt_ECN_info *)(*target)->data; - - switch (c) { - case 'F': - if (*flags) - xtables_error(PARAMETER_PROBLEM, - "ECN target: Only use --ecn-tcp-remove ONCE!"); + struct ipt_ECN_info *einfo = cb->data; + + xtables_option_parse(cb); + switch (cb->entry->id) { + case O_ECN_TCP_REMOVE: einfo->operation = IPT_ECN_OP_SET_ECE | IPT_ECN_OP_SET_CWR; einfo->proto.tcp.ece = 0; einfo->proto.tcp.cwr = 0; - *flags = 1; break; - case 'G': - if (*flags & IPT_ECN_OP_SET_CWR) - xtables_error(PARAMETER_PROBLEM, - "ECN target: Only use --ecn-tcp-cwr ONCE!"); - if (!xtables_strtoui(optarg, NULL, &result, 0, 1)) - xtables_error(PARAMETER_PROBLEM, - "ECN target: Value out of range"); + case O_ECN_TCP_CWR: einfo->operation |= IPT_ECN_OP_SET_CWR; - einfo->proto.tcp.cwr = result; - *flags |= IPT_ECN_OP_SET_CWR; + einfo->proto.tcp.cwr = cb->val.u8; break; - case 'H': - if (*flags & IPT_ECN_OP_SET_ECE) - xtables_error(PARAMETER_PROBLEM, - "ECN target: Only use --ecn-tcp-ece ONCE!"); - if (!xtables_strtoui(optarg, NULL, &result, 0, 1)) - xtables_error(PARAMETER_PROBLEM, - "ECN target: Value out of range"); + case O_ECN_TCP_ECE: einfo->operation |= IPT_ECN_OP_SET_ECE; - einfo->proto.tcp.ece = result; - *flags |= IPT_ECN_OP_SET_ECE; + einfo->proto.tcp.ece = cb->val.u8; break; - case '9': - if (*flags & IPT_ECN_OP_SET_IP) - xtables_error(PARAMETER_PROBLEM, - "ECN target: Only use --ecn-ip-ect ONCE!"); - if (!xtables_strtoui(optarg, NULL, &result, 0, 3)) - xtables_error(PARAMETER_PROBLEM, - "ECN target: Value out of range"); + case O_ECN_IP_ECT: einfo->operation |= IPT_ECN_OP_SET_IP; - einfo->ip_ect = result; - *flags |= IPT_ECN_OP_SET_IP; + einfo->ip_ect = cb->val.u8; break; - default: - return 0; } - - return 1; } -static void ECN_check(unsigned int flags) +static void ECN_check(struct xt_fcheck_call *cb) { - if (!flags) + if (cb->xflags == 0) xtables_error(PARAMETER_PROBLEM, - "ECN target: Parameter --ecn-tcp-remove is required"); + "ECN target: An operation is required"); } static void ECN_print(const void *ip, const struct xt_entry_target *target, @@ -109,21 +85,21 @@ static void ECN_print(const void *ip, const struct xt_entry_target *target, const struct ipt_ECN_info *einfo = (const struct ipt_ECN_info *)target->data; - printf("ECN "); + printf(" ECN"); if (einfo->operation == (IPT_ECN_OP_SET_ECE|IPT_ECN_OP_SET_CWR) && einfo->proto.tcp.ece == 0 && einfo->proto.tcp.cwr == 0) - printf("TCP remove "); + printf(" TCP remove"); else { if (einfo->operation & IPT_ECN_OP_SET_ECE) - printf("ECE=%u ", einfo->proto.tcp.ece); + printf(" ECE=%u", einfo->proto.tcp.ece); if (einfo->operation & IPT_ECN_OP_SET_CWR) - printf("CWR=%u ", einfo->proto.tcp.cwr); + printf(" CWR=%u", einfo->proto.tcp.cwr); if (einfo->operation & IPT_ECN_OP_SET_IP) - printf("ECT codepoint=%u ", einfo->ip_ect); + printf(" ECT codepoint=%u", einfo->ip_ect); } } @@ -135,17 +111,17 @@ static void ECN_save(const void *ip, const struct xt_entry_target *target) if (einfo->operation == (IPT_ECN_OP_SET_ECE|IPT_ECN_OP_SET_CWR) && einfo->proto.tcp.ece == 0 && einfo->proto.tcp.cwr == 0) - printf("--ecn-tcp-remove "); + printf(" --ecn-tcp-remove"); else { if (einfo->operation & IPT_ECN_OP_SET_ECE) - printf("--ecn-tcp-ece %d ", einfo->proto.tcp.ece); + printf(" --ecn-tcp-ece %d", einfo->proto.tcp.ece); if (einfo->operation & IPT_ECN_OP_SET_CWR) - printf("--ecn-tcp-cwr %d ", einfo->proto.tcp.cwr); + printf(" --ecn-tcp-cwr %d", einfo->proto.tcp.cwr); if (einfo->operation & IPT_ECN_OP_SET_IP) - printf("--ecn-ip-ect %d ", einfo->ip_ect); + printf(" --ecn-ip-ect %d", einfo->ip_ect); } } @@ -156,11 +132,11 @@ static struct xtables_target ecn_tg_reg = { .size = XT_ALIGN(sizeof(struct ipt_ECN_info)), .userspacesize = XT_ALIGN(sizeof(struct ipt_ECN_info)), .help = ECN_help, - .parse = ECN_parse, - .final_check = ECN_check, .print = ECN_print, .save = ECN_save, - .extra_opts = ECN_opts, + .x6_parse = ECN_parse, + .x6_fcheck = ECN_check, + .x6_options = ECN_opts, }; void _init(void) |