diff options
| author | Andreas Schultz <aschultz@tpip.net> | 2015-11-13 15:57:37 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2015-11-13 17:16:03 +0100 |
| commit | 10abfba9495e7bac1e96463f8a55ce7d4da76a26 (patch) | |
| tree | bc99de36eea2270f02f4e16eb8cf05b0e9e28151 /sgsnemu | |
| parent | a377b0874a7b69e5094f640b47a985804f02bd19 (diff) | |
convert literal APN name to protocol encoded version before use
The definition of the APN field format in GTPv1 is hidden in a chain
of documents.
3GPP TS 29.060 (the GTPv1-C specification) Section 7.7.30:
> The Access Point Name contains a logical name (see 3GPP TS 23.060 [4]).
> It is coded as in the value part defined in 3GPP TS 24.008
3GPP TS 24.008 Section 10.5.6.1:
> The value part is defined in 3GPP TS 23.003.
3GPP TS 23.003 Section 9.1:
> The APN consists of one or more labels. Each label is coded as a one
> octet length field followed by that number of octets coded as 8 bit
> ASCII characters
This converts a literal APN (e.g. Label1.Label2.Label3) to a structured
field (e.g. \006Label1\006Label2\006Label3)
Signed-off-by: Andreas Schultz <aschultz@tpip.net>
Diffstat (limited to 'sgsnemu')
| -rw-r--r-- | sgsnemu/sgsnemu.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sgsnemu/sgsnemu.c b/sgsnemu/sgsnemu.c index 45341af..f3d9ba0 100644 --- a/sgsnemu/sgsnemu.c +++ b/sgsnemu/sgsnemu.c @@ -231,6 +231,7 @@ int process_options(int argc, char **argv) char *type; char *mcc; char *mnc; + char *tok, *apn; char *lac; int lac_d; char *rest; @@ -534,10 +535,19 @@ int process_options(int argc, char **argv) printf("Invalid APN\n"); return -1; } - options.apn.l = strlen(args_info.apn_arg); - strncpy((char *)options.apn.v, args_info.apn_arg, - sizeof(options.apn.v)); - options.apn.v[sizeof(options.apn.v) - 1] = 0; + options.apn.l = strlen(args_info.apn_arg) + 1; + + apn = (char *)options.apn.v; + for (tok = strtok(args_info.apn_arg, "."); + tok != NULL; + tok = strtok(NULL, ".")) { + size_t len = strlen(tok); + + *apn++ = (char)len; + strncpy(apn, tok, len); + apn += len; + } + printf("Using APN: %s\n", args_info.apn_arg); /* selmode */ |