[ovs-dev] [PATCH v2 15/16] ovs-ofctl: Generalize action and instruction test commands.

Jarno Rajahalme jrajahalme at nicira.com
Mon Aug 11 18:39:41 UTC 2014


Acked-by: Jarno Rajahalme <jrajahalme at nicira.com>

On Aug 7, 2014, at 4:14 PM, Ben Pfaff <blp at nicira.com> wrote:

> Until now, there were four of these commands: parse-ofp10-actions,
> parse-ofp10-instructions, parse-ofp11-actions, parse-ofp11-instructions.
> This is painful to add support for new OpenFlow versions and has a ton of
> cut-and-paste code.  This commit generalizes the code to improve on both
> of those points.
> 
> Signed-off-by: Ben Pfaff <blp at nicira.com>
> ---
> tests/ofp-actions.at  |   34 +++----
> utilities/ovs-ofctl.c |  242 ++++++++++++++-----------------------------------
> 2 files changed, 86 insertions(+), 190 deletions(-)
> 
> diff --git a/tests/ofp-actions.at b/tests/ofp-actions.at
> index 73b7dc6..9c6f228 100644
> --- a/tests/ofp-actions.at
> +++ b/tests/ofp-actions.at
> @@ -69,11 +69,11 @@ ffff 0018 00002320 0009 000000000000 c426384d49c53d60
> # actions=set_tunnel64:0x885f3298
> ffff 0018 00002320 0009 000000000000 00000000885f3298
> 
> -# bad OF1.0 actions: OFPBIC_UNSUP_INST
> +# bad OpenFlow10 actions: OFPBIC_UNSUP_INST
> & ofp_actions|WARN|write_metadata instruction not allowed here
> ffff 0020 00002320 0016 000000000000 fedcba9876543210 ffffffffffffffff
> 
> -# bad OF1.0 actions: OFPBIC_UNSUP_INST
> +# bad OpenFlow10 actions: OFPBIC_UNSUP_INST
> & ofp_actions|WARN|write_metadata instruction not allowed here
> ffff 0020 00002320 0016 000000000000 fedcba9876543210 ffff0000ffff0000
> 
> @@ -127,7 +127,7 @@ AT_CAPTURE_FILE([input.txt])
> AT_CAPTURE_FILE([expout])
> AT_CAPTURE_FILE([experr])
> AT_CHECK(
> -  [ovs-ofctl '-vPATTERN:console:%c|%p|%m' parse-ofp10-actions < input.txt],
> +  [ovs-ofctl '-vPATTERN:console:%c|%p|%m' parse-actions OpenFlow10 < input.txt],
>   [0], [expout], [experr])
> AT_CLEANUP
> 
> @@ -157,7 +157,7 @@ AT_CAPTURE_FILE([input.txt])
> AT_CAPTURE_FILE([expout])
> AT_CAPTURE_FILE([experr])
> AT_CHECK(
> -  [ovs-ofctl '-vPATTERN:console:%c|%p|%m' parse-ofp10-instructions < input.txt],
> +  [ovs-ofctl '-vPATTERN:console:%c|%p|%m' parse-instructions OpenFlow10 < input.txt],
>   [0], [expout], [experr])
> AT_CLEANUP
> 
> @@ -235,7 +235,7 @@ ffff 0018 00002320 0009 000000000000 00000000885f3298
> 
> dnl Write-Metadata is only allowed in contexts that allow instructions.
> & ofp_actions|WARN|write_metadata instruction not allowed here
> -# bad OF1.1 actions: OFPBIC_UNSUP_INST
> +# bad OpenFlow11 actions: OFPBIC_UNSUP_INST
> ffff 0020 00002320 0016 000000000000 fedcba9876543210 ffffffffffffffff
> 
> # actions=multipath(eth_src,50,modulo_n,1,0,NXM_NX_REG0[])
> @@ -289,7 +289,7 @@ AT_CAPTURE_FILE([input.txt])
> AT_CAPTURE_FILE([expout])
> AT_CAPTURE_FILE([experr])
> AT_CHECK(
> -  [ovs-ofctl '-vPATTERN:console:%c|%p|%m' parse-ofp11-actions < input.txt],
> +  [ovs-ofctl '-vPATTERN:console:%c|%p|%m' parse-actions OpenFlow11 < input.txt],
>   [0], [expout], [experr])
> AT_CLEANUP
> 
> @@ -325,16 +325,16 @@ dnl Check that an empty Apply-Actions instruction gets dropped.
> 0004 0008 00000000
> 
> dnl Duplicate instruction type:
> -# bad OF1.1 instructions: OFPBIC_DUP_INST
> +# bad OpenFlow11 instructions: OFPBIC_DUP_INST
> 0004 0008 00000000 0004 0008 00000000
> 
> dnl Instructions not multiple of 8 in length.
> & ofp_actions|WARN|OpenFlow message instructions length 9 is not a multiple of 8
> -# bad OF1.1 instructions: OFPBIC_BAD_LEN
> +# bad OpenFlow11 instructions: OFPBIC_BAD_LEN
> 0004 0009 01 00000000
> 
> dnl Goto-Table instruction too long.
> -# bad OF1.1 instructions: OFPBIC_BAD_LEN
> +# bad OpenFlow11 instructions: OFPBIC_BAD_LEN
> 0001 0010 01 000000 0000000000000000
> 
> dnl Goto-Table 1 instruction non-zero padding
> @@ -343,7 +343,7 @@ dnl Goto-Table 1 instruction non-zero padding
> 0001 0008 01 000001
> 
> dnl Goto-Table 1 instruction go back to the previous table.
> -# bad OF1.1 instructions: OFPBRC_BAD_TABLE_ID
> +# bad OpenFlow11 instructions: OFPBRC_BAD_TABLE_ID
> 2,0001 0008 01 000000
> 
> dnl Goto-Table 1
> @@ -397,15 +397,15 @@ dnl Write-Metadata with mask.
> 0002 0018 00000000 fedcba9876543210 ff00ff00ff00ff00
> 
> dnl Write-Metadata too short.
> -# bad OF1.1 instructions: OFPBIC_BAD_LEN
> +# bad OpenFlow11 instructions: OFPBIC_BAD_LEN
> 0002 0010 00000000 fedcba9876543210
> 
> dnl Write-Metadata too long.
> -# bad OF1.1 instructions: OFPBIC_BAD_LEN
> +# bad OpenFlow11 instructions: OFPBIC_BAD_LEN
> 0002 0020 00000000 fedcba9876543210 ffffffffffffffff 0000000000000000
> 
> dnl Write-Metadata duplicated.
> -# bad OF1.1 instructions: OFPBIC_DUP_INST
> +# bad OpenFlow11 instructions: OFPBIC_DUP_INST
> 0002 0018 00000000 fedcba9876543210 ff00ff00ff00ff00 0002 0018 00000000 fedcba9876543210 ff00ff00ff00ff00
> 
> dnl Write-Metadata in wrong position (OpenFlow 1.1+ disregards the order
> @@ -465,7 +465,7 @@ dnl Check that an empty Write-Actions instruction gets dropped.
> 0003 0008 00000000
> 
> dnl Clear-Actions too-long
> -# bad OF1.1 instructions: OFPBIC_BAD_LEN
> +# bad OpenFlow11 instructions: OFPBIC_BAD_LEN
> 0005 0010 00000000 0000000000000000
> 
> dnl Clear-Actions non-zero padding
> @@ -483,11 +483,11 @@ dnl Clear-Actions
> 0005 0008 00000000
> 
> dnl Experimenter actions not supported yet.
> -# bad OF1.1 instructions: OFPBIC_BAD_EXPERIMENTER
> +# bad OpenFlow11 instructions: OFPBIC_BAD_EXPERIMENTER
> ffff 0008 01 000000
> 
> dnl Bad instruction number (0 not assigned).
> -# bad OF1.1 instructions: OFPBIC_UNKNOWN_INST
> +# bad OpenFlow11 instructions: OFPBIC_UNKNOWN_INST
> 0000 0008 01 000000
> 
> ])
> @@ -498,7 +498,7 @@ AT_CAPTURE_FILE([input.txt])
> AT_CAPTURE_FILE([expout])
> AT_CAPTURE_FILE([experr])
> AT_CHECK(
> -  [ovs-ofctl '-vPATTERN:console:%c|%p|%m' parse-ofp11-instructions < input.txt],
> +  [ovs-ofctl '-vPATTERN:console:%c|%p|%m' parse-instructions OpenFlow11 < input.txt],
>   [0], [expout], [experr])
> AT_CLEANUP
> 
> diff --git a/utilities/ovs-ofctl.c b/utilities/ovs-ofctl.c
> index c05197a..cd8f840 100644
> --- a/utilities/ovs-ofctl.c
> +++ b/utilities/ovs-ofctl.c
> @@ -2936,39 +2936,70 @@ print_differences(const char *prefix,
> }
> 
> static void
> -ofctl_parse_ofp10_actions__(bool instructions)
> +ofctl_parse_actions__(const char *version_s, bool instructions)
> {
> +    enum ofp_version version;
>     struct ds in;
> 
> +    version = ofputil_version_from_string(version_s);
> +    if (!version) {
> +        ovs_fatal(0, "%s: not a valid OpenFlow version", version_s);
> +    }
> +
>     ds_init(&in);
>     while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
> -        struct ofpbuf of10_out;
> -        struct ofpbuf of10_in;
> +        struct ofpbuf of_out;
> +        struct ofpbuf of_in;
>         struct ofpbuf ofpacts;
> +        const char *table_id;
> +        char *actions;
>         enum ofperr error;
>         size_t size;
>         struct ds s;
> 
> +        /* Parse table_id separated with the follow-up actions by ",", if
> +         * any. */
> +        actions = ds_cstr(&in);
> +        table_id = NULL;
> +        if (strstr(actions, ",")) {
> +            table_id = strsep(&actions, ",");
> +        }
> +
>         /* Parse hex bytes. */
> -        ofpbuf_init(&of10_in, 0);
> -        if (ofpbuf_put_hex(&of10_in, ds_cstr(&in), NULL)[0] != '\0') {
> +        ofpbuf_init(&of_in, 0);
> +        if (ofpbuf_put_hex(&of_in, actions, NULL)[0] != '\0') {
>             ovs_fatal(0, "Trailing garbage in hex data");
>         }
> 
>         /* Convert to ofpacts. */
>         ofpbuf_init(&ofpacts, 0);
> -        size = ofpbuf_size(&of10_in);
> +        size = ofpbuf_size(&of_in);
>         error = (instructions
>                  ? ofpacts_pull_openflow_instructions
>                  : ofpacts_pull_openflow_actions)(
> -                     &of10_in, ofpbuf_size(&of10_in), OFP10_VERSION, &ofpacts);
> +                     &of_in, ofpbuf_size(&of_in), version, &ofpacts);
> +        if (!error && instructions) {
> +            /* Verify actions, enforce consistency. */
> +            enum ofputil_protocol protocol;
> +            struct flow flow;
> +
> +            memset(&flow, 0, sizeof flow);
> +            protocol = ofputil_protocols_from_ofp_version(version);
> +            error = ofpacts_check_consistency(ofpbuf_data(&ofpacts),
> +                                              ofpbuf_size(&ofpacts),
> +                                              &flow, OFPP_MAX,
> +                                              table_id ? atoi(table_id) : 0,
> +                                              255, protocol);
> +        }
>         if (error) {
> -            printf("bad OF1.0 actions: %s\n\n", ofperr_get_name(error));
> +            printf("bad %s %s: %s\n\n",
> +                   version_s, instructions ? "instructions" : "actions",
> +                   ofperr_get_name(error));
>             ofpbuf_uninit(&ofpacts);
> -            ofpbuf_uninit(&of10_in);
> +            ofpbuf_uninit(&of_in);
>             continue;
>         }
> -        ofpbuf_push_uninit(&of10_in, size);
> +        ofpbuf_push_uninit(&of_in, size);
> 
>         /* Print cls_rule. */
>         ds_init(&s);
> @@ -2978,39 +3009,46 @@ ofctl_parse_ofp10_actions__(bool instructions)
>         ds_destroy(&s);
> 
>         /* Convert back to ofp10 actions and print differences from input. */
> -        ofpbuf_init(&of10_out, 0);
> -        ofpacts_put_openflow_actions(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &of10_out,
> -                                     OFP10_VERSION);
> +        ofpbuf_init(&of_out, 0);
> +        if (instructions) {
> +           ofpacts_put_openflow_instructions( ofpbuf_data(&ofpacts),
> +                                              ofpbuf_size(&ofpacts),
> +                                              &of_out, version);
> +        } else {
> +           ofpacts_put_openflow_actions( ofpbuf_data(&ofpacts),
> +                                         ofpbuf_size(&ofpacts),
> +                                         &of_out, version);
> +        }
> 
> -        print_differences("", ofpbuf_data(&of10_in), ofpbuf_size(&of10_in),
> -                          ofpbuf_data(&of10_out), ofpbuf_size(&of10_out));
> +        print_differences("", ofpbuf_data(&of_in), ofpbuf_size(&of_in),
> +                          ofpbuf_data(&of_out), ofpbuf_size(&of_out));
>         putchar('\n');
> 
>         ofpbuf_uninit(&ofpacts);
> -        ofpbuf_uninit(&of10_in);
> -        ofpbuf_uninit(&of10_out);
> +        ofpbuf_uninit(&of_in);
> +        ofpbuf_uninit(&of_out);
>     }
>     ds_destroy(&in);
> }
> 
> -/* "parse-ofp10-actions": reads a series of OpenFlow 1.0 action specifications
> - * as hex bytes from stdin, converts them to ofpacts, prints them as strings
> - * on stdout, and then converts them back to hex bytes and prints any
> - * differences from the input. */
> +/* "parse-actions VERSION": reads a series of action specifications for the
> + * given OpenFlow VERSION as hex bytes from stdin, converts them to ofpacts,
> + * prints them as strings on stdout, and then converts them back to hex bytes
> + * and prints any differences from the input. */
> static void
> -ofctl_parse_ofp10_actions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
> +ofctl_parse_actions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
> {
> -    ofctl_parse_ofp10_actions__(false);
> +    ofctl_parse_actions__(argv[1], false);
> }
> 
> -/* "parse-ofp10-instructions": reads a series of OpenFlow 1.0 action
> - * specifications as hex bytes from stdin, converts them to ofpacts, prints
> - * them as strings on stdout, and then converts them back to hex bytes and
> - * prints any differences from the input. */
> +/* "parse-actions VERSION": reads a series of instruction specifications for
> + * the given OpenFlow VERSION as hex bytes from stdin, converts them to
> + * ofpacts, prints them as strings on stdout, and then converts them back to
> + * hex bytes and prints any differences from the input. */
> static void
> -ofctl_parse_ofp10_instructions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
> +ofctl_parse_instructions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
> {
> -    ofctl_parse_ofp10_actions__(true);
> +    ofctl_parse_actions__(argv[1], true);
> }
> 
> /* "parse-ofp10-match": reads a series of ofp10_match specifications as hex
> @@ -3141,146 +3179,6 @@ ofctl_parse_ofp11_match(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
>     ds_destroy(&in);
> }
> 
> -/* "parse-ofp11-actions": reads a series of OpenFlow 1.1 action specifications
> - * as hex bytes from stdin, converts them to ofpacts, prints them as strings
> - * on stdout, and then converts them back to hex bytes and prints any
> - * differences from the input. */
> -static void
> -ofctl_parse_ofp11_actions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
> -{
> -    struct ds in;
> -
> -    ds_init(&in);
> -    while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
> -        struct ofpbuf of11_out;
> -        struct ofpbuf of11_in;
> -        struct ofpbuf ofpacts;
> -        enum ofperr error;
> -        size_t size;
> -        struct ds s;
> -
> -        /* Parse hex bytes. */
> -        ofpbuf_init(&of11_in, 0);
> -        if (ofpbuf_put_hex(&of11_in, ds_cstr(&in), NULL)[0] != '\0') {
> -            ovs_fatal(0, "Trailing garbage in hex data");
> -        }
> -
> -        /* Convert to ofpacts. */
> -        ofpbuf_init(&ofpacts, 0);
> -        size = ofpbuf_size(&of11_in);
> -        error = ofpacts_pull_openflow_actions(&of11_in, ofpbuf_size(&of11_in),
> -                                              OFP11_VERSION, &ofpacts);
> -        if (error) {
> -            printf("bad OF1.1 actions: %s\n\n", ofperr_get_name(error));
> -            ofpbuf_uninit(&ofpacts);
> -            ofpbuf_uninit(&of11_in);
> -            continue;
> -        }
> -        ofpbuf_push_uninit(&of11_in, size);
> -
> -        /* Print cls_rule. */
> -        ds_init(&s);
> -        ds_put_cstr(&s, "actions=");
> -        ofpacts_format(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &s);
> -        puts(ds_cstr(&s));
> -        ds_destroy(&s);
> -
> -        /* Convert back to ofp11 actions and print differences from input. */
> -        ofpbuf_init(&of11_out, 0);
> -        ofpacts_put_openflow_actions(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &of11_out,
> -                                     OFP11_VERSION);
> -
> -        print_differences("", ofpbuf_data(&of11_in), ofpbuf_size(&of11_in),
> -                          ofpbuf_data(&of11_out), ofpbuf_size(&of11_out));
> -        putchar('\n');
> -
> -        ofpbuf_uninit(&ofpacts);
> -        ofpbuf_uninit(&of11_in);
> -        ofpbuf_uninit(&of11_out);
> -    }
> -    ds_destroy(&in);
> -}
> -
> -/* "parse-ofp11-instructions": reads a series of OpenFlow 1.1 instruction
> - * specifications as hex bytes from stdin, converts them to ofpacts, prints
> - * them as strings on stdout, and then converts them back to hex bytes and
> - * prints any differences from the input. */
> -static void
> -ofctl_parse_ofp11_instructions(int argc OVS_UNUSED, char *argv[] OVS_UNUSED)
> -{
> -    struct ds in;
> -
> -    ds_init(&in);
> -    while (!ds_get_preprocessed_line(&in, stdin, NULL)) {
> -        struct ofpbuf of11_out;
> -        struct ofpbuf of11_in;
> -        struct ofpbuf ofpacts;
> -        enum ofperr error;
> -        size_t size;
> -        struct ds s;
> -        const char *table_id;
> -        char *instructions;
> -
> -        /* Parse table_id separated with the follow-up instructions by ",", if
> -         * any. */
> -        instructions = ds_cstr(&in);
> -        table_id = NULL;
> -        if (strstr(instructions, ",")) {
> -            table_id = strsep(&instructions, ",");
> -        }
> -
> -        /* Parse hex bytes. */
> -        ofpbuf_init(&of11_in, 0);
> -        if (ofpbuf_put_hex(&of11_in, instructions, NULL)[0] != '\0') {
> -            ovs_fatal(0, "Trailing garbage in hex data");
> -        }
> -
> -        /* Convert to ofpacts. */
> -        ofpbuf_init(&ofpacts, 0);
> -        size = ofpbuf_size(&of11_in);
> -        error = ofpacts_pull_openflow_instructions(&of11_in, ofpbuf_size(&of11_in),
> -                                                   OFP11_VERSION, &ofpacts);
> -        if (!error) {
> -            /* Verify actions, enforce consistency. */
> -            struct flow flow;
> -            memset(&flow, 0, sizeof flow);
> -            error = ofpacts_check_consistency(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts),
> -                                              &flow, OFPP_MAX,
> -                                              table_id ? atoi(table_id) : 0,
> -                                              255, OFPUTIL_P_OF11_STD);
> -        }
> -        if (error) {
> -            printf("bad OF1.1 instructions: %s\n\n", ofperr_get_name(error));
> -            ofpbuf_uninit(&ofpacts);
> -            ofpbuf_uninit(&of11_in);
> -            continue;
> -        }
> -        ofpbuf_push_uninit(&of11_in, size);
> -
> -        /* Print cls_rule. */
> -        ds_init(&s);
> -        ds_put_cstr(&s, "actions=");
> -        ofpacts_format(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts), &s);
> -        puts(ds_cstr(&s));
> -        ds_destroy(&s);
> -
> -        /* Convert back to ofp11 instructions and print differences from
> -         * input. */
> -        ofpbuf_init(&of11_out, 0);
> -        ofpacts_put_openflow_instructions(ofpbuf_data(&ofpacts), ofpbuf_size(&ofpacts),
> -                                          &of11_out, OFP13_VERSION);
> -
> -        print_differences("", ofpbuf_data(&of11_in), ofpbuf_size(&of11_in),
> -                          ofpbuf_data(&of11_out), ofpbuf_size(&of11_out));
> -        putchar('\n');
> -
> -        ofpbuf_uninit(&ofpacts);
> -        ofpbuf_uninit(&of11_in);
> -        ofpbuf_uninit(&of11_out);
> -    }
> -    ds_destroy(&in);
> -}
> -
> /* "parse-pcap PCAP": read packets from PCAP and print their flows. */
> static void
> ofctl_parse_pcap(int argc OVS_UNUSED, char *argv[])
> @@ -3587,12 +3485,10 @@ static const struct command all_commands[] = {
>     { "parse-nx-match", 0, 0, ofctl_parse_nxm },
>     { "parse-nxm", 0, 0, ofctl_parse_nxm },
>     { "parse-oxm", 1, 1, ofctl_parse_oxm },
> -    { "parse-ofp10-actions", 0, 0, ofctl_parse_ofp10_actions },
> -    { "parse-ofp10-instructions", 0, 0, ofctl_parse_ofp10_instructions },
> +    { "parse-actions", 1, 1, ofctl_parse_actions },
> +    { "parse-instructions", 1, 1, ofctl_parse_instructions },
>     { "parse-ofp10-match", 0, 0, ofctl_parse_ofp10_match },
>     { "parse-ofp11-match", 0, 0, ofctl_parse_ofp11_match },
> -    { "parse-ofp11-actions", 0, 0, ofctl_parse_ofp11_actions },
> -    { "parse-ofp11-instructions", 0, 0, ofctl_parse_ofp11_instructions },
>     { "parse-pcap", 1, 1, ofctl_parse_pcap },
>     { "check-vlan", 2, 2, ofctl_check_vlan },
>     { "print-error", 1, 1, ofctl_print_error },
> -- 
> 1.7.10.4
> 
> _______________________________________________
> dev mailing list
> dev at openvswitch.org
> http://openvswitch.org/mailman/listinfo/dev




More information about the dev mailing list