diff options
Diffstat (limited to 'package/network/services/ppp/patches/321-multilink_support_custom_iface_names.patch')
| -rw-r--r-- | package/network/services/ppp/patches/321-multilink_support_custom_iface_names.patch | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/package/network/services/ppp/patches/321-multilink_support_custom_iface_names.patch b/package/network/services/ppp/patches/321-multilink_support_custom_iface_names.patch new file mode 100644 index 0000000..bba5884 --- /dev/null +++ b/package/network/services/ppp/patches/321-multilink_support_custom_iface_names.patch @@ -0,0 +1,146 @@ +From: George Kashperko <george@znau.edu.ua> + +Make mlppp support more generic interface naming other than pppX +Signed-off-by: George Kashperko <george@znau.edu.ua> +--- + pppd/multilink.c | 55 +++++++++++++++++++++++++++++++++------------ + pppd/sys-linux.c | 12 +++++++++ + 2 files changed, 53 insertions(+), 14 deletions(-) +--- a/pppd/multilink.c ++++ b/pppd/multilink.c +@@ -56,7 +56,8 @@ static void iterate_bundle_links __P((vo + + static int get_default_epdisc __P((struct epdisc *)); + static int parse_num __P((char *str, const char *key, int *valp)); +-static int owns_unit __P((TDB_DATA pid, int unit)); ++static int parse_str __P((char *str, const char *key, char *buf, int buflen)); ++static int owns_link __P((TDB_DATA pid, char *ifname)); + + #define set_ip_epdisc(ep, addr) do { \ + ep->length = 4; \ +@@ -197,35 +198,38 @@ mp_join_bundle() + key.dptr = bundle_id; + key.dsize = p - bundle_id; + pid = tdb_fetch(pppdb, key); ++ + if (pid.dptr != NULL) { ++ char tmp[IFNAMSIZ]; ++ + /* bundle ID exists, see if the pppd record exists */ + rec = tdb_fetch(pppdb, pid); ++ + if (rec.dptr != NULL && rec.dsize > 0) { + /* make sure the string is null-terminated */ + rec.dptr[rec.dsize-1] = 0; +- /* parse the interface number */ +- parse_num(rec.dptr, "IFNAME=ppp", &unit); ++ + /* check the pid value */ + if (!parse_num(rec.dptr, "PPPD_PID=", &pppd_pid) ++ || !parse_str(rec.dptr, "IFNAME=", tmp, sizeof(tmp)) ++ || !parse_num(rec.dptr, "IFUNIT=", &unit) + || !process_exists(pppd_pid) +- || !owns_unit(pid, unit)) ++ || !owns_link(pid, tmp)) + unit = -1; + free(rec.dptr); + } + free(pid.dptr); +- } + +- if (unit >= 0) { + /* attach to existing unit */ +- if (bundle_attach(unit)) { ++ if (unit >= 0 && bundle_attach(unit)) { + set_ifunit(0); + script_setenv("BUNDLE", bundle_id + 7, 0); + make_bundle_links(1); + unlock_db(); +- info("Link attached to %s", ifname); ++ info("Link attached to %s", tmp); + return 1; ++ /* attach failed because bundle doesn't exist */ + } +- /* attach failed because bundle doesn't exist */ + } + + /* we have to make a new bundle */ +@@ -408,22 +412,45 @@ parse_num(str, key, valp) + return 0; + } + ++static int ++parse_str(str, key, buf, buflen) ++ char *str; ++ const char *key; ++ char *buf; ++ int buflen; ++{ ++ char *p, *endp; ++ int i; ++ ++ p = strstr(str, key); ++ if (p) { ++ p += strlen(key); ++ while (--buflen && *p != 0 && *p != ';') ++ *(buf++) = *(p++); ++ *buf = 0; ++ return 1; ++ } ++ return 0; ++} ++ + /* +- * Check whether the pppd identified by `key' still owns ppp unit `unit'. ++ * Check whether the pppd identified by `key' still owns ppp link `ifname'. + */ + static int +-owns_unit(key, unit) ++owns_link(key, ifname) + TDB_DATA key; +- int unit; ++ char *ifname; + { +- char ifkey[32]; ++ char ifkey[7 + IFNAMSIZ]; + TDB_DATA kd, vd; + int ret = 0; + +- slprintf(ifkey, sizeof(ifkey), "IFNAME=ppp%d", unit); ++ slprintf(ifkey, sizeof(ifkey), "IFNAME=%s", ifname); ++ + kd.dptr = ifkey; + kd.dsize = strlen(ifkey); + vd = tdb_fetch(pppdb, kd); ++ + if (vd.dptr != NULL) { + ret = vd.dsize == key.dsize + && memcmp(vd.dptr, key.dptr, vd.dsize) == 0; +--- a/pppd/sys-linux.c ++++ b/pppd/sys-linux.c +@@ -698,6 +698,16 @@ void cfg_bundle(int mrru, int mtru, int + add_fd(ppp_dev_fd); + } + ++static void ++setenv_ifunit(void) ++{ ++#ifdef USE_TDB ++ char tmp[11]; ++ slprintf(tmp, sizeof(tmp), "%d", ifunit); ++ script_setenv("IFUNIT", tmp, 0); ++#endif ++} ++ + /* + * make_new_bundle - create a new PPP unit (i.e. a bundle) + * and connect our channel to it. This should only get called +@@ -716,6 +726,8 @@ void make_new_bundle(int mrru, int mtru, + + /* set the mrru and flags */ + cfg_bundle(mrru, mtru, rssn, tssn); ++ ++ setenv_ifunit(); + } + + /* |