Partially revert previous commit:
"0" value is perfectly valid for O_SETFIB and O_SETDSCP, so tablearg remains to be 655535 for now.
This commit is contained in:
parent
2c452b20dd
commit
8bd1921248
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/projects/ipfw/; revision=269725
@ -93,7 +93,7 @@ int ipfw_socket = -1;
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if (!av[0]) \
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errx(EX_USAGE, "%s: missing argument", match_value(s_x, tok)); \
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if (_substrcmp(*av, "tablearg") == 0) { \
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arg = IP_FW_TARG; \
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arg = IP_FW_TABLEARG; \
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break; \
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} \
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\
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@ -111,7 +111,7 @@ int ipfw_socket = -1;
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errx(EX_DATAERR, "%s: argument is out of range (%u..%u): %s", \
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match_value(s_x, tok), min, max, *av); \
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\
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if (_xval == IP_FW_TARG) \
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if (_xval == IP_FW_TABLEARG) \
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errx(EX_DATAERR, "%s: illegal argument value: %s", \
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match_value(s_x, tok), *av); \
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arg = _xval; \
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@ -123,7 +123,7 @@ PRINT_UINT_ARG(const char *str, uint32_t arg)
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{
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if (str != NULL)
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printf("%s",str);
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if (arg == IP_FW_TARG)
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if (arg == IP_FW_TABLEARG)
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printf("tablearg");
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else
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printf("%u", arg);
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@ -469,7 +469,7 @@ bprint_uint_arg(struct buf_pr *bp, const char *str, uint32_t arg)
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if (str != NULL)
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bprintf(bp, "%s", str);
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if (arg == IP_FW_TARG)
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if (arg == IP_FW_TABLEARG)
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bprintf(bp, "tablearg");
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else
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bprintf(bp, "%u", arg);
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@ -3596,11 +3596,11 @@ compile_rule(char *av[], uint32_t *rbuf, int *rbufsize, struct tidx *tstate)
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errx(EX_USAGE, "missing argument for %s", *(av - 1));
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if (isdigit(**av)) {
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action->arg1 = strtoul(*av, NULL, 10);
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if (action->arg1 <= 0 || action->arg1 >= IP_FW_TARG)
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if (action->arg1 <= 0 || action->arg1 >= IP_FW_TABLEARG)
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errx(EX_DATAERR, "illegal argument for %s",
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*(av - 1));
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} else if (_substrcmp(*av, "tablearg") == 0) {
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action->arg1 = IP_FW_TARG;
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action->arg1 = IP_FW_TABLEARG;
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} else if (i == TOK_DIVERT || i == TOK_TEE) {
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struct servent *s;
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setservent(1);
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@ -3724,7 +3724,7 @@ compile_rule(char *av[], uint32_t *rbuf, int *rbufsize, struct tidx *tstate)
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action->opcode = O_SETFIB;
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NEED1("missing fib number");
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if (_substrcmp(*av, "tablearg") == 0) {
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action->arg1 = IP_FW_TARG;
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action->arg1 = IP_FW_TABLEARG;
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} else {
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action->arg1 = strtoul(*av, NULL, 10);
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if (sysctlbyname("net.fibs", &numfibs, &intsize,
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@ -3744,7 +3744,7 @@ compile_rule(char *av[], uint32_t *rbuf, int *rbufsize, struct tidx *tstate)
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action->opcode = O_SETDSCP;
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NEED1("missing DSCP code");
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if (_substrcmp(*av, "tablearg") == 0) {
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action->arg1 = IP_FW_TARG;
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action->arg1 = IP_FW_TABLEARG;
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} else if (isalpha(*av[0])) {
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if ((code = match_token(f_ipdscp, *av)) == -1)
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errx(EX_DATAERR, "Unknown DSCP code");
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@ -49,16 +49,16 @@
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* Most commands (queue, pipe, tag, untag, limit...) can have a 16-bit
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* argument between 1 and 65534. The value 0 is unused, the value
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* 65535 (IP_FW_TABLEARG) is used to represent 'tablearg', i.e. the
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* can be 1..65534, or 0 to indicate the use of a 'tablearg'
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* can be 1..65534, or 65535 to indicate the use of a 'tablearg'
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* result of the most recent table() lookup.
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* Note that 16bit is only a historical limit, resulting from
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* the use of a 16-bit fields for that value. In reality, we can have
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* 2^32 pipes, queues, tag values and so on, and use 0 as a tablearg.
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* Note there are some opcodes where value 0 is perfectly valid (fib, dscp).
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*/
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#define IPFW_ARG_MIN 1
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#define IPFW_ARG_MAX 65534
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#define IP_FW_TABLEARG 65535 /* Compat value for old clients */
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#define IP_FW_TARG 0 /* Current tablearg value */
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#define IP_FW_TABLEARG 65535
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/*
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* Number of entries in the call stack of the call/return commands.
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@ -810,7 +810,7 @@ jump_fast(struct ip_fw_chain *chain, struct ip_fw *f, int num,
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* whose version is written in f->next_rule
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* (horrible hacks to avoid changing the ABI).
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*/
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if (num != IP_FW_TARG && (uintptr_t)f->x_next == chain->id)
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if (num != IP_FW_TABLEARG && (uintptr_t)f->x_next == chain->id)
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f_pos = (uintptr_t)f->next_rule;
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else {
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int i = IP_FW_ARG_TABLEARG(num);
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@ -822,7 +822,7 @@ jump_fast(struct ip_fw_chain *chain, struct ip_fw *f, int num,
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else
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f_pos = ipfw_find_rule(chain, i, 0);
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/* update the cache */
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if (num != IP_FW_TARG) {
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if (num != IP_FW_TABLEARG) {
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f->next_rule = (void *)(uintptr_t)f_pos;
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f->x_next = (void *)(uintptr_t)chain->id;
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}
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@ -2461,7 +2461,7 @@ do { \
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retval = IP_FW_DENY;
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break;
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}
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if (cmd->arg1 != IP_FW_TARG)
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if (cmd->arg1 != IP_FW_TABLEARG)
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((ipfw_insn_nat *)cmd)->nat = t;
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}
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retval = ipfw_nat_ptr(args, t, m);
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@ -719,7 +719,7 @@ ipfw_install_state(struct ip_fw *rule, ipfw_insn_limit *cmd,
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conn_limit = IP_FW_ARG_TABLEARG(cmd->conn_limit);
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DEB(
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if (cmd->conn_limit == IP_FW_TARG)
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if (cmd->conn_limit == IP_FW_TABLEARG)
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printf("ipfw: %s: O_LIMIT rule, conn_limit: %u "
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"(tablearg)\n", __func__, conn_limit);
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else
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@ -384,7 +384,7 @@ struct ipfw_ifc {
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#endif
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#define IP_FW_ARG_TABLEARG(a) (((a) == IP_FW_TARG) ? tablearg : (a))
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#define IP_FW_ARG_TABLEARG(a) (((a) == IP_FW_TABLEARG) ? tablearg : (a))
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/*
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* The lock is heavily used by ip_fw2.c (the main file) and ip_fw_nat.c
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* so the variable and the macros must be here.
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@ -375,7 +375,7 @@ export_cntr0_base(struct ip_fw *krule, struct ip_fw_bcounter0 *cntr)
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}
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/*
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* Copies rule @urule from v1 userland format (current).
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* Copies rule @urule from v1 userland format
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* to kernel @krule.
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* Assume @krule is zeroed.
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*/
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@ -456,7 +456,6 @@ import_rule0(struct rule_check_info *ci)
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struct ip_fw *krule;
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int cmdlen, l;
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ipfw_insn *cmd;
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ipfw_insn_limit *lcmd;
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ipfw_insn_if *cmdif;
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urule = (struct ip_fw_rule0 *)ci->urule;
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@ -478,39 +477,16 @@ import_rule0(struct rule_check_info *ci)
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/*
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* Alter opcodes:
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* 1) convert tablearg value from 65335 to 0
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* 2) convert table number in iface opcodes to u16
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* 1) convert table number in iface opcodes to u16
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*/
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l = krule->cmd_len;
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cmd = krule->cmd;
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l = urule->cmd_len;
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cmd = urule->cmd;
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cmdlen = 0;
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for ( ; l > 0 ; l -= cmdlen, cmd += cmdlen) {
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cmdlen = F_LEN(cmd);
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switch (cmd->opcode) {
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/* Opcodes supporting tablearg */
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case O_TAG:
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case O_TAGGED:
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case O_PIPE:
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case O_QUEUE:
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case O_DIVERT:
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case O_TEE:
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case O_SKIPTO:
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case O_CALLRETURN:
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case O_NETGRAPH:
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case O_NGTEE:
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case O_SETFIB:
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case O_SETDSCP:
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case O_NAT:
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if (cmd->arg1 == 65535)
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cmd->arg1 = IP_FW_TARG;
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break;
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case O_LIMIT:
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lcmd = (ipfw_insn_limit *)cmd;
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if (lcmd->conn_limit == 65535)
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lcmd->conn_limit = IP_FW_TARG;
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break;
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/* Interface tables */
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case O_XMIT:
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case O_RECV:
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@ -520,21 +496,17 @@ import_rule0(struct rule_check_info *ci)
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if (cmdif->name[0] != '\1')
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break;
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cmdif->p.kidx = (uint16_t)cmdif->p.glob;
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cmdif->p.kidx = cmdif->p.glob;
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break;
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}
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}
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}
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/*
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* Copies rule @krule from kernel to FreeBSD8 userland format (v0)
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*/
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static void
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export_rule0(struct ip_fw *krule, struct ip_fw_rule0 *urule, int len)
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{
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int cmdlen, l;
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ipfw_insn *cmd;
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ipfw_insn_limit *lcmd;
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ipfw_insn_if *cmdif;
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/* copy header */
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@ -554,8 +526,7 @@ export_rule0(struct ip_fw *krule, struct ip_fw_rule0 *urule, int len)
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/*
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* Alter opcodes:
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* 1) convert tablearg value from 0 to 65335
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* 2) convert table number in iface opcodes to int
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* 1) convert table number in iface opcodes to int
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*/
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l = urule->cmd_len;
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cmd = urule->cmd;
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@ -565,28 +536,6 @@ export_rule0(struct ip_fw *krule, struct ip_fw_rule0 *urule, int len)
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cmdlen = F_LEN(cmd);
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switch (cmd->opcode) {
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/* Opcodes supporting tablearg */
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case O_TAG:
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case O_TAGGED:
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case O_PIPE:
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case O_QUEUE:
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case O_DIVERT:
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case O_TEE:
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case O_SKIPTO:
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case O_CALLRETURN:
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case O_NETGRAPH:
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case O_NGTEE:
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case O_SETFIB:
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case O_SETDSCP:
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case O_NAT:
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if (cmd->arg1 == IP_FW_TARG)
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cmd->arg1 = 65535;
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break;
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case O_LIMIT:
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lcmd = (ipfw_insn_limit *)cmd;
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if (lcmd->conn_limit == IP_FW_TARG)
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lcmd->conn_limit = 65535;
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break;
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/* Interface tables */
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case O_XMIT:
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case O_RECV:
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@ -2047,7 +2047,7 @@ classify_table_opcode(ipfw_insn *cmd, uint16_t *puidx, uint8_t *ptype)
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break;
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*ptype = IPFW_TABLE_INTERFACE;
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*puidx = cmdif->p.kidx;
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*puidx = cmdif->p.glob;
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skip = 0;
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break;
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case O_IP_FLOW_LOOKUP:
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@ -2080,7 +2080,7 @@ update_table_opcode(ipfw_insn *cmd, uint16_t idx)
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case O_VIA:
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/* Interface table, possibly */
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cmdif = (ipfw_insn_if *)cmd;
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cmdif->p.kidx = idx;
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cmdif->p.glob = idx;
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break;
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case O_IP_FLOW_LOOKUP:
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cmd->arg1 = idx;
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